diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9c04c3242..77e9391ad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,27 @@
 # Changelog
 
+## 1.4.3 - 2026-08-27
+
+Stable production hotfix for **Click to position cursor**. This patch restores
+reliable cursor positioning when normal physical mouse jitter occurs between
+left-button press and release. It publishes as GitHub Latest with application
+version `1.4.3`, package/file version `1.4.3.0`, PowerShell module version
+`1.4.3`, and tag `v1.4.3`.
+
+### Fixed
+
+- Fixed Click to position cursor working intermittently when sub-threshold
+  pointer movement occurred between mouse-down and mouse-up.
+- Fixed stale selection-copy state that could keep rejecting later plain
+  cursor-position clicks after one jittered gesture.
+- Pointer movement below the existing drag-selection threshold now remains a
+  click and does not mutate selection or create a phantom copy candidate.
+- Cursor-reposition eligibility and selection-copy eligibility now have
+  independent gesture responsibilities.
+- Added deterministic coverage for 1-pixel and repeated jitter, ten sequential
+  clicks, a poisoned-follow-up gesture, the exact drag-threshold boundary,
+  continued drag selection, CopyOnSelect, and stale-state recovery.
+
 ## 1.4.2 - 2026-08-25
 
 Stable patch release of the **Pane Search** generation and **Click to position
diff --git a/README.ja.md b/README.ja.md
index b96b2552c..f88e6002a 100644
--- a/README.ja.md
+++ b/README.ja.md
@@ -14,7 +14,7 @@
 
 最新の安定版リリースページには、インストーラー（Setup EXE）、ポータブルZIP、
 リリースノート、チェックサムがまとめて掲載されています。現在の安定版は
-**winTerm 1.4.2** です。
+**winTerm 1.4.3** です。
 
 インストーラーは署名されていないため、Windowsに「不明な発行元」または
 SmartScreenの警告が表示される場合があります。必ず上記の公式リリースから
@@ -34,8 +34,8 @@ Microsoft、Windows、Windows Terminalのロゴも使用していません。
 - `winTerm-<version>-setup-x64.exe` — 現在のユーザー、または全ユーザーへのインストール用;
 - `winTerm-<version>-portable-x64.zip` — 展開してそのまま実行する用。
 
-現在のソースバージョンは `1.4.2` で、
-最新の安定版リリースも `1.4.2` です。公開されている資産の一覧とチェックサムの全体は、
+現在のソースバージョンは `1.4.3` で、
+最新の安定版リリースも `1.4.3` です。公開されている資産の一覧とチェックサムの全体は、
 [最新の公式リリース](https://github.com/HelloThisWorld/winTerm/releases/latest)
 を参照してください。
 
@@ -46,7 +46,7 @@ Windowsに「不明な発行元」またはSmartScreenの警告が表示され
 Windows SDK、`Add-AppxPackage` は一切必要ありません。
 
 [インストール手順（英語）](docs/user/installation.md)、
-[1.4.2のリリースノート（英語）](docs/releases/1.4.2.md)、
+[1.4.3のリリースノート（英語）](docs/releases/1.4.3.md)、
 [1.3.0のリリースノート（英語）](docs/releases/1.3.0.md)もあわせて参照してください。
 
 ## 主な機能
@@ -57,7 +57,8 @@ Windows SDK、`Add-AppxPackage` は一切必要ありません。
   出力が流れ続けている間も検索結果が更新されます;
 - **クリックした位置へカーソルを移動**: シェル統合で安全に確認できる現在の編集中
   コマンド内をクリックすると、シェルのテキストカーソルがその位置へ移動します。
-  既定で有効で、Profile > Advancedから無効にできます。ドラッグ、Shift、単語／行選択、
+  既定で有効で、Profile > Advancedから無効にできます。ドラッグ判定のしきい値未満の
+  小さなマウス移動は通常のクリックとして扱われます。ドラッグ、Shift、単語／行選択、
   ハイパーリンク、VTマウス対応アプリの操作が優先され、明示的な `false` 設定も維持されます;
 - ペインごとの**Command Timeline**（`Ctrl+Tab`、またはターミナル左端の細い
   ハンドル）: そのペインで実行したコマンドをメモリ上に保持する一覧です。
@@ -116,8 +117,8 @@ PowerShell 7と、[ビルド手順（英語）](docs/build.md)に記載された
 .\scripts\winterm\build.ps1 -Configuration Release -Platform x64 -IncludeTests
 .\scripts\winterm\test.ps1 -Suite Relevant -Configuration Release -Platform x64
 .\scripts\winterm\build-unpackaged.ps1 -Configuration Release -Platform x64
-.\scripts\winterm\build-installer.ps1 -Version 1.4.2 -Platform x64
-.\scripts\winterm\build-portable.ps1 -Version 1.4.2 -Platform x64
+.\scripts\winterm\build-installer.ps1 -Version 1.4.3 -Platform x64
+.\scripts\winterm\build-portable.ps1 -Version 1.4.3 -Platform x64
 ```
 
 アンパッケージ形式の生成処理では、統合されたリソースインデックスを作るための
diff --git a/README.md b/README.md
index 6eb8496dc..858e428ef 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ English | [日本語](README.ja.md)
 [**Open the latest stable release and download winTerm for x64**](https://github.com/HelloThisWorld/winTerm/releases/latest)
 
 The latest stable Release page provides the Setup EXE, Portable ZIP, release
-notes, and checksums together. The current stable release is **winTerm 1.4.2**.
+notes, and checksums together. The current stable release is **winTerm 1.4.3**.
 
 The installer is unsigned, so Windows may display Unknown Publisher or a
 SmartScreen warning. Download only from the official release above and verify
@@ -31,8 +31,8 @@ application downloads are:
 - `winTerm-<version>-setup-x64.exe` — current-user or all-users installation;
 - `winTerm-<version>-portable-x64.zip` — extract and run without installation.
 
-The current source version is `1.4.2`;
-the latest stable release is `1.4.2`. See the
+The current source version is `1.4.3`;
+the latest stable release is `1.4.3`. See the
 [latest official Release](https://github.com/HelloThisWorld/winTerm/releases/latest)
 for the complete published asset list and checksums.
 
@@ -42,7 +42,7 @@ Release. No MSIX certificate, Developer Mode, Visual Studio, Windows SDK, or
 `Add-AppxPackage` is required to install a release EXE.
 
 See [installation guidance](docs/user/installation.md), the
-[1.4.2 release notes](docs/releases/1.4.2.md), and the earlier
+[1.4.3 release notes](docs/releases/1.4.3.md), and the earlier
 [1.3.0 notes](docs/releases/1.3.0.md).
 
 ## Core features
@@ -52,9 +52,10 @@ See [installation guidance](docs/user/installation.md), the
   and regex modes, a compact match counter, and a scrollbar overview that
   stays current while output streams;
 - **Click to position cursor** inside the current shell-integrated editable
-  command, enabled by default and available under Profile > Advanced; normal
-  drag, Shift, word/line selection, hyperlinks, and VT mouse applications
-  retain precedence, and an explicit setting of `false` remains respected;
+  command, enabled by default and available under Profile > Advanced; small
+  pointer movement below the drag threshold remains a plain click, while drag,
+  Shift, word/line selection, hyperlinks, and VT mouse applications retain
+  precedence, and an explicit setting of `false` remains respected;
 - a per-pane **Command Timeline** (`Ctrl+Tab`, or the thin handle on the
   terminal's left edge): an in-memory list of the commands that pane has run,
   built from OSC 133 shell integration only, with load-without-executing onto
@@ -109,8 +110,8 @@ Use PowerShell 7 and the Microsoft Terminal toolchain described in
 .\scripts\winterm\build.ps1 -Configuration Release -Platform x64 -IncludeTests
 .\scripts\winterm\test.ps1 -Suite Relevant -Configuration Release -Platform x64
 .\scripts\winterm\build-unpackaged.ps1 -Configuration Release -Platform x64
-.\scripts\winterm\build-installer.ps1 -Version 1.4.2 -Platform x64
-.\scripts\winterm\build-portable.ps1 -Version 1.4.2 -Platform x64
+.\scripts\winterm\build-installer.ps1 -Version 1.4.3 -Platform x64
+.\scripts\winterm\build-portable.ps1 -Version 1.4.3 -Platform x64
 ```
 
 The unpackaged generator uses an unsigned MSIX only as an upstream build
diff --git a/docs/current-progress.md b/docs/current-progress.md
index 3fcc7a960..205816b28 100644
--- a/docs/current-progress.md
+++ b/docs/current-progress.md
@@ -1,138 +1,184 @@
 # Current development progress
 
-Last updated: 2026-08-25
+Last updated: 2026-08-27
 
 ## Repository state
 
-- Working branch: `codex/release-v1.4.2`
-- Branch base: `09dc76796725d9b7bd7b0d86a28196bce14698c7` (`origin/main` at
-  release preparation start)
-- Application version: `1.4.2`
-- Package/file version: `1.4.2.0`
-- PowerShell module version: `1.4.2` with an empty prerelease suffix
+- Working branch: `fix/v1.4.3-click-position`
+- Branch base: `0ee3adcb63c9cb028a44badeddb0362db38fa5f7`
+  (`origin/main` at hotfix preparation start)
+- Application version: `1.4.3`
+- Package/file version: `1.4.3.0`
+- PowerShell module version: `1.4.3` with an empty prerelease suffix
 - Release channel: `stable`
-- Intended tag: `v1.4.2`
+- Intended tag: `v1.4.3`
 - Supported target: Windows 11 x64
 
 The source remains based on the repository's pinned Microsoft Terminal
 baseline `release-1.25@1cea42d433253d95c4487a3037db48197b5e72f4`.
-Microsoft Terminal `upstream/main` was separately fetched through
-`86d15aef08e500be34497ff4e3a6f0d099ffb067` (2026-08-24) for a targeted
-cursor-positioning audit; no broad upstream merge was performed.
-
-## 1.4.2 release scope
-
-winTerm 1.4.2 promotes the complete Pane Search development line and adds
-Click to position cursor as a stable, default-enabled winTerm feature. It is
-the combined application delta since stable v1.3.0. The immutable v1.4.1 tag
-reached packaging but did not publish a GitHub Release because its release-note
-signing heading did not match the exact verifier contract; 1.4.2 corrects that
-release-only defect. The earlier 1.4.0 alpha and beta entries remain historical
-records only.
-
-### Pane Search
-
-- `Ctrl+F` opens the focused pane's search overlay; `Ctrl+Shift+F` remains a
-  compatibility alias.
-- Full-scrollback live matching, all-match highlighting, forward/backward
-  navigation, case-sensitive and regular-expression modes, and the compact
-  `current / total` counter are complete.
-- The pane-local scrollbar overview is complete and remains independent of
-  the generic `ShowMarks` setting.
-- Typing coalescing, sustained-output convergence, repaint signatures,
-  reflow, scrollback eviction, alternate-buffer changes, wide characters,
-  and invalid regex handling have regression coverage.
-
-### Click to position cursor
-
-- A plain single click is recorded on mouse-down and acted on only at
-  mouse-up. Crossing the existing drag threshold cancels positioning and
-  preserves normal selection without first moving the shell cursor.
-- Ctrl+Click hyperlinks, VT mouse applications, double/triple click,
-  Shift+Click, drag selection, and copy-on-select retain their established
-  precedence.
-- Positioning requires the unfinished final OSC 133 shell mark and accepts
-  only the current editable command. Historical commands, output, scrollback,
-  and untrusted locations safely do nothing.
-- Coordinate translation validates viewport, buffer, inclusive TextBuffer
-  bounds, padding, overflow, resize-era points, and malformed input before any
-  buffer iterator is obtained.
-- Full-width glyph trailing cells are excluded from LEFT/RIGHT event counts,
-  and each split pane sends input only through its own connection.
-- The winTerm default is enabled; an explicit profile value of `false` is
-  preserved. The compatible internal JSON key remains
-  `experimental.repositionCursorWithMouse`, while localized UI describes the
-  stable feature as **Click to position cursor**.
-
-### Visual Progress and Command Timeline
-
-- Visual Progress remains stable in 1.4.2, including its determinate and
-  indeterminate renderer, per-pane state, accessibility path, and local-only
-  recognition controls.
-- Command Timeline remains stable and pane-local, with OSC 133-backed command
-  boundaries, filtering, load-without-executing, copy, jump, and status.
-- The 1.4.2 cursor work does not change either feature's settings, protocol,
-  persistence, or privacy boundaries.
-
-## Upstream cursor audit
-
-- Inspected Microsoft Terminal PR #20442 and merged commit
-  `de3fc87d186e5da1d5ccd8731412905f5e2aba30`, which clamps click coordinates
-  before TextBuffer access.
-- Searched subsequent upstream history for changes involving
-  `RepositionCursorWithMouse`, `_repositionCursorWithMouse`, and related click
-  behavior. No later directly applicable cursor-safety fix was found.
-- Also reviewed earlier related cursor-selection commits
-  `4995af3dc1cc600b57fcdd953734a13b9b1a425f` and
-  `d14ff939dc418fa04401304fdef539424dbb5bd5`; their relevant behavior was
-  already present in winTerm.
-- The backport follows current inclusive coordinate contracts rather than
-  copying the upstream clamp literally, and adds stricter editable-mark,
-  overflow, vertical-padding, glyph, and release-time interaction guards.
+Microsoft Terminal `upstream/main` was separately refreshed through
+`c7572cde0c69733e4511787dc963eb336f17adbf` (2026-08-25) for the required
+upstream-state check. No broad upstream merge was performed.
+
+## 1.4.3 hotfix scope
+
+winTerm 1.4.3 is a focused production regression hotfix for Click to position
+cursor. The feature shipped in the 1.4.1 payload and remained unchanged in
+1.4.2. Real physical mouse testing showed that small movement between
+mouse-down and mouse-up could intermittently reject the first click and could
+leave later clicks unable to reposition the cursor.
+
+No unrelated feature work is included. Pane Search, Command Timeline, Visual
+Progress, workspace behavior, package identity, and protocol/schema versions
+remain unchanged.
+
+Visual Progress remains unchanged in 1.4.3; this hotfix does not alter its
+rendering, recognition, accessibility, privacy, or per-pane behavior.
+
+## Confirmed root cause
+
+The press path correctly recorded a plain single left click as a pending cursor
+reposition and saved its touchdown position. The move path calculated the
+existing drag threshold correctly, but then called `SetEndSelectionPoint()`
+even when movement was still below that threshold.
+
+With no active selection, `ControlCore::SetEndSelectionPoint()` returned
+without changing terminal selection. `ControlInteractivity` nevertheless set
+`_selectionNeedsToBeCopied = true`, producing this invalid state:
+
+```text
+HasSelection()                 = false
+_cursorRepositionPending      = true
+_selectionNeedsToBeCopied     = true
+```
+
+The release path then required the copy flag to be false before repositioning.
+Normal 1-pixel jitter could therefore reject an otherwise valid click, and the
+stale copy flag could remain set into future gestures.
+
+The bug was reproduced before production changes with a compiled deterministic
+press, 1-pixel move, release test. It failed exactly on the phantom copy-state
+assertion while confirming no selection existed and cursor reposition remained
+pending.
+
+## State-machine correction
+
+- Pointer movement below the existing drag threshold performs no selection
+  operation. Cursor reposition remains pending and selection-copy state is not
+  modified.
+- Crossing the threshold cancels cursor reposition, establishes the selection
+  anchor once, updates the selection end, and transfers ownership to the drag.
+- Moves after the threshold continue updating only the selection end; the
+  anchor is not re-established.
+- `ControlCore::SetEndSelectionPoint()` now reports whether an active selection
+  was actually updated. Interactivity marks copy state dirty only on success.
+- `PointerReleased()` uses `_cursorRepositionPending` and the established
+  modifier/VT/Core safety checks to decide click ownership. It does not use the
+  selection-copy flag as the primary click proof.
+- A release with no active selection normalizes stale copy state without
+  clearing or damaging legitimate mark-mode or CopyOnSelect state while a real
+  selection exists.
+
+Ctrl+Click hyperlinks, VT mouse reporting, double-click word selection,
+triple-click line selection, Shift+Click, drag selection, and CopyOnSelect keep
+their existing precedence. The 1.4.1/1.4.2 negative-coordinate, padding,
+viewport, buffer-bound, historical-output, finished-mark, editable-range,
+full-width-glyph, and split-pane safeguards are unchanged.
+
+## Regression coverage
+
+New deterministic Control tests cover:
+
+- a 1-pixel move remaining a click with no phantom selection-copy state;
+- several alternating sub-threshold moves remaining a click;
+- ten independent cursor-position clicks at different editable positions;
+- a jittered gesture followed by another successful ordinary click;
+- exact below-threshold and at-threshold behavior;
+- drag selection continuing to update after the threshold without cursor
+  input;
+- CopyOnSelect copying real drag selection but not sub-threshold jitter;
+- recovery from `_selectionNeedsToBeCopied = true` while no selection exists.
+
+The existing cursor tests continue to cover release-only positioning,
+Shift+Click, double/triple click, explicit disablement, editable shell marks,
+historical output, padding, wrapped commands, CJK/full-width glyphs, and
+split-pane connection isolation.
+
+Current local automated results:
+
+- focused cursor-position family: PASS, 11/11;
+- complete Debug x64 compiled Control suite: PASS, 100/100;
+- complete Debug x64 Relevant suite: PASS (Settings Model 245/245,
+  TerminalApp 51/51, Control 100/100);
+- complete Release x64 application and compiled-test build: PASS;
+- complete Release x64 Relevant suite: PASS (Settings Model 245/245,
+  TerminalApp 51/51, Control 100/100);
+- Smoke suite: PASS;
+- version verification: PASS for application 1.4.3, package/file 1.4.3.0,
+  PowerShell module 1.4.3, stable channel, and tag v1.4.3;
+- branding verification with publisher `CN=helloThisWorld`: PASS;
+- source-only Visual Progress verification: PASS;
+- unpackaged Release x64 stage generation and layout verification: PASS.
+
+## Real GUI validation gate
+
+The real Release x64 application was launched in isolated portable mode with
+PowerShell 7 and an unexecuted `git commit --amend --no-edit` command. An
+OS-input validation run used actual absolute mouse-move packets between
+button-down and button-up. It passed 30/30 cursor-position clicks across the
+beginning, middle, and end of the line, alternating left and right, including
+ten rapid far-apart clicks. Every gesture included 1-pixel X and Y movement,
+inserted a temporary marker at the asserted command index, restored the
+original command, and left no selected text. A paced drag selected
+`commit --a`, a double click selected exactly `commit`, and a triple click
+selected the complete line.
+
+This OS-injected real-window evidence is supplemental and is not represented
+as manual physical-mouse validation. The required physical-mouse GUI gate is
+still **NOT RUN**. Five verified execute/new-prompt lifecycles are also not yet
+recorded because the isolated window closed during that attempted sequence.
+Release readiness therefore still requires manual mouse validation with normal
+physical jitter, at least 30 cursor-position clicks, separate click timing
+versus genuine double/triple click, five prompt lifecycles, and PowerShell 7 at
+minimum. PowerShell 5, cmd.exe, WSL, and representative VT mouse applications
+should also be exercised where available.
+
+The 1.4.3 release must not be tagged or described as complete until this gate
+has actual evidence.
 
 ## Release channel and artifacts
 
 The guarded tag workflow must confirm an exact tag/version match, absence of
-an existing Release, a clean checkout, version/branding/security/privacy
-gates, an x64 Release build with compiled tests, artifact generation, and a
-public asset re-download before publication is considered complete.
+an existing Release, a clean checkout, version/branding/security/privacy gates,
+an x64 Release build with compiled tests, artifact generation, Draft Release
+round-trip validation, publication, and public asset re-download.
 
 The expected public Release assets are:
 
-- `winTerm-1.4.2-setup-x64.exe`
-- `winTerm-1.4.2-portable-x64.zip`
+- `winTerm-1.4.3-setup-x64.exe`
+- `winTerm-1.4.3-portable-x64.zip`
 - `SHA256SUMS.txt`
 - `THIRD_PARTY_NOTICES.md`
 - `SBOM.spdx.json`
 - `SBOM.cyclonedx.json`
 - `release-metadata.json`
-- `winTerm-1.4.2-release-notes.md`
+- `winTerm-1.4.3-release-notes.md`
 
-The installer is currently not Authenticode-signed, so Unknown Publisher or
+The installer is not currently Authenticode-signed, so Unknown Publisher or
 SmartScreen warnings remain possible. The Release notes disclose this and
 direct users to verify `SHA256SUMS.txt`.
 
-## Validation state
-
-Local stable-candidate validation completed on 2026-08-25:
-
-- Debug x64 package and all three unit-test projects built successfully.
-- Smoke and Relevant suites passed.
-- Compiled Settings Model, Terminal App, and Control suites passed with
-  381/381, 51/51, and 93/93 tests respectively.
-- Version, branding, privacy, release-workflow, and PowerShell syntax gates
-  passed as part of those suites.
-
-The formal Release workflow and public asset verification remain authoritative
-for the published installer and Portable ZIP.
-
-## Next steps
-
-1. Merge through the application pull request, synchronize the Wiki ledger,
-   tag the exact merged `main` commit, and monitor the formal Release workflow
-   through public asset validation.
-2. Update and deploy winterm.dev from the real `published_at` timestamp and
-   public v1.4.2 asset URLs, then verify English/Japanese production pages.
-3. Only after both the stable Release and website are verified, remove the
-   published v1.4.0-beta GitHub prerelease entry while retaining its historical
-   git tag.
+## Release plan
+
+1. Complete the final diff audit after all validation records are updated.
+2. Complete and record the manual physical GUI mouse-jitter, repeated-click, selection,
+   prompt-lifecycle, shell, and VT mouse validation gate.
+3. Commit the focused 1.4.3 source/docs change, publish the matching Wiki
+   ledger entry, push the branch, and merge through the application pull
+   request only after it is genuinely release-ready.
+4. Synchronize `main`, create annotated tag `v1.4.3` on the exact merged commit,
+   push only that tag, and monitor the formal Release workflow to a terminal
+   result.
+5. Verify GitHub Latest and every public asset and checksum, then update
+   `winterm-site` from the real Release URL, `published_at`, asset URLs, and
+   filenames. Publish and verify English/Japanese production parity.
diff --git a/docs/releases/1.4.3.md b/docs/releases/1.4.3.md
new file mode 100644
index 000000000..ffcd5481d
--- /dev/null
+++ b/docs/releases/1.4.3.md
@@ -0,0 +1,80 @@
+# winTerm 1.4.3
+
+**winTerm 1.4.3 is a stable production hotfix.** GitHub Latest points to
+`v1.4.3`; there is no alpha, beta, preview, or prerelease suffix in the
+application, package, PowerShell module, or Release metadata.
+
+This patch fixes a Click to position cursor regression present in the 1.4.1
+application payload and unchanged in 1.4.2. A normal click could work only
+intermittently, and one failed gesture could make later clicks stop moving the
+cursor.
+
+## Click-position reliability fix
+
+A plain single left click is allowed a small amount of normal physical mouse
+movement between button press and release. Movement below the existing
+drag-selection threshold remains a click, does not create or modify a text
+selection, and does not become eligible for CopyOnSelect.
+
+The regression occurred because every pointer-move event extended the
+selection endpoint even before a drag existed. The terminal Core correctly
+ignored that request when there was no active selection, but the Interactivity
+layer still marked selection-copy state as dirty. Release-time cursor
+positioning then treated that unrelated state as proof that the gesture was
+not a click, and the stale value could persist into later gestures.
+
+winTerm 1.4.3 separates the two responsibilities:
+
+- cursor-reposition pending state decides whether the current gesture still
+  qualifies as a plain click;
+- selection-copy state becomes dirty only when a real selection is active and
+  was updated;
+- crossing the existing drag threshold establishes the selection anchor once,
+  updates the selection end, and transfers ownership to selection;
+- release-time cursor positioning no longer uses selection-copy state as its
+  primary click test, and a no-selection release normalizes stale copy state.
+
+Existing interaction precedence is unchanged: Ctrl+Click hyperlinks, VT mouse
+reporting, double-click word selection, triple-click line selection,
+Shift+Click, and drag selection all retain ownership ahead of a plain click.
+The coordinate, padding, buffer-bound, historical-output, editable-mark,
+full-width-glyph, and split-pane protections from 1.4.1 and 1.4.2 remain in
+place.
+
+## Compatibility and limitations
+
+Click positioning still requires shell integration to identify the current,
+unfinished editable command. Previous commands, completed output, unrelated
+scrollback, malformed coordinates, and positions outside the trustworthy
+editable range remain safe no-ops. Mouse-aware applications such as Vim,
+Less, top, htop, k9s, and tmux keep mouse ownership while VT mouse reporting
+is active.
+
+## Downloads
+
+- `winTerm-1.4.3-setup-x64.exe` — current-user or all-users installation.
+- `winTerm-1.4.3-portable-x64.zip` — extract and run without installation;
+  `portable.marker` keeps data beside the executable.
+- `SHA256SUMS.txt` — SHA-256 checksums for the application downloads and every
+  other published release artifact.
+- `THIRD_PARTY_NOTICES.md` — dependency and attribution notices.
+- `SBOM.spdx.json` and `SBOM.cyclonedx.json` — software bills of materials.
+- `release-metadata.json` — immutable build and source provenance.
+- `winTerm-1.4.3-release-notes.md` — the packaged copy of these notes.
+
+Download assets only from the official `v1.4.3` GitHub Release. Verify the
+Setup EXE and Portable ZIP against `SHA256SUMS.txt` from that same Release
+before running them. Upgrading keeps settings, themes, workspaces, and
+snapshots under `%LOCALAPPDATA%\winTerm`, or under the adjacent `data`
+directory in portable mode.
+
+## Signing
+
+The installer is **not Authenticode-signed**. Windows may display Unknown
+Publisher or a Microsoft Defender SmartScreen warning. Download only from the
+official GitHub Release and verify `SHA256SUMS.txt` from that same Release
+before running the installer.
+
+Requires Windows 11 x64. winTerm is an independent open-source project based
+on Microsoft Terminal source code; it is not a Microsoft product and is not
+affiliated with or endorsed by Microsoft.
diff --git a/scripts/winterm/package-shell-assets.ps1 b/scripts/winterm/package-shell-assets.ps1
index a6afb5f2d..bb99d44cb 100644
--- a/scripts/winterm/package-shell-assets.ps1
+++ b/scripts/winterm/package-shell-assets.ps1
@@ -32,9 +32,9 @@ foreach ($relativePath in $sourceAssets)
 }
 
 $version = Get-Content -LiteralPath (Join-Path $repositoryRoot 'shell\shared\version.json') -Raw | ConvertFrom-Json
-if ($version.moduleVersion -ne '1.4.2' -or
+if ($version.moduleVersion -ne '1.4.3' -or
     $version.modulePrerelease -ne '' -or
-    $version.applicationVersion -ne '1.4.2' -or
+    $version.applicationVersion -ne '1.4.3' -or
     $version.protocolVersion -ne 1)
 {
     throw 'The winTerm Shell asset version metadata is invalid.'
diff --git a/scripts/winterm/test-visual-progress.ps1 b/scripts/winterm/test-visual-progress.ps1
index 559414c43..8af7eae81 100644
--- a/scripts/winterm/test-visual-progress.ps1
+++ b/scripts/winterm/test-visual-progress.ps1
@@ -1411,10 +1411,10 @@ try
         Assert-Matches $releaseNotes $requiredPattern 'winTerm 1.2.0 Visual Progress release notes'
     }
     Assert-Matches $source.Changelog '(?m)^##\s+.*1\.2\.0' 'Changelog 1.2.0 entry'
-    Assert-Matches $source.CurrentProgress '(?i)1\.4\.2' 'Current progress v1.4.2 milestone'
+    Assert-Matches $source.CurrentProgress '(?i)1\.4\.3' 'Current progress v1.4.3 milestone'
     Assert-Matches $source.CurrentProgress '(?i)Visual Progress' 'Current progress Visual Progress coverage'
     Assert-Contains $source.Readme '/releases/latest' 'Stable latest-release README download route'
-    Assert-Matches $source.Readme '(?i)1\.4\.2' 'README v1.4.2 surface'
+    Assert-Matches $source.Readme '(?i)1\.4\.3' 'README v1.4.3 surface'
     foreach ($requiredPattern in @(
         '(?is)recognition.*runs locally|locally.*recognition',
         '(?is)bounded.*newly\s+arriving\s+output|newly\s+arriving.*bounded',
@@ -1432,12 +1432,12 @@ try
 
     $version = $source.VersionMetadata | ConvertFrom-Json
     $expectedVersionValues = [ordered]@{
-        applicationVersion = '1.4.2'
-        packageVersion = '1.4.2.0'
-        moduleVersion = '1.4.2'
+        applicationVersion = '1.4.3'
+        packageVersion = '1.4.3.0'
+        moduleVersion = '1.4.3'
         modulePrerelease = ''
         channel = 'stable'
-        tag = 'v1.4.2'
+        tag = 'v1.4.3'
         workspaceSchemaVersion = 2
         dockingModelVersion = 1
         shellProtocolVersion = 1
@@ -1452,39 +1452,39 @@ try
         }
     }
     $shellVersion = $source.ShellVersion | ConvertFrom-Json
-    if ($shellVersion.applicationVersion -ne '1.4.2' -or $shellVersion.moduleVersion -ne '1.4.2' -or $shellVersion.protocolVersion -ne 1)
+    if ($shellVersion.applicationVersion -ne '1.4.3' -or $shellVersion.moduleVersion -ne '1.4.3' -or $shellVersion.protocolVersion -ne 1)
     {
-        throw 'Shell version metadata does not match winTerm version 1.4.2 with protocol version 1.'
+        throw 'Shell version metadata does not match winTerm version 1.4.3 with protocol version 1.'
     }
     foreach ($surface in @(
-        @{ Content = $source.ReleaseMetadata; Value = 'ApplicationVersion{ L"1.4.2" }'; Description = 'About release metadata' },
-        @{ Content = $source.PackageManifest; Value = 'Version="1.4.2.0"'; Description = 'MSIX package manifest' },
-        @{ Content = $source.HostResource; Value = 'FILEVERSION 1,4,2,0'; Description = 'Terminal host file version' },
-        @{ Content = $source.HostResource; Value = '"ProductVersion", "1.4.2\0"'; Description = 'Terminal host display version' },
-        @{ Content = $source.ShimResource; Value = 'FILEVERSION 1,4,2,0'; Description = 'Shim file version' },
-        @{ Content = $source.ShimResource; Value = '"ProductVersion", "1.4.2\0"'; Description = 'Shim display version' },
+        @{ Content = $source.ReleaseMetadata; Value = 'ApplicationVersion{ L"1.4.3" }'; Description = 'About release metadata' },
+        @{ Content = $source.PackageManifest; Value = 'Version="1.4.3.0"'; Description = 'MSIX package manifest' },
+        @{ Content = $source.HostResource; Value = 'FILEVERSION 1,4,3,0'; Description = 'Terminal host file version' },
+        @{ Content = $source.HostResource; Value = '"ProductVersion", "1.4.3\0"'; Description = 'Terminal host display version' },
+        @{ Content = $source.ShimResource; Value = 'FILEVERSION 1,4,3,0'; Description = 'Shim file version' },
+        @{ Content = $source.ShimResource; Value = '"ProductVersion", "1.4.3\0"'; Description = 'Shim display version' },
         @{ Content = $source.CustomProps; Value = '<VersionMajor>1</VersionMajor>'; Description = 'Executable major version' },
         @{ Content = $source.CustomProps; Value = '<VersionMinor>4</VersionMinor>'; Description = 'Executable minor version' },
-        @{ Content = $source.ShellModuleManifest; Value = "ModuleVersion = '1.4.2'"; Description = 'PowerShell module manifest' },
-        @{ Content = $source.ShellModule; Value = "`$script:WinTermModuleVersion = '1.4.2'"; Description = 'PowerShell module runtime' },
+        @{ Content = $source.ShellModuleManifest; Value = "ModuleVersion = '1.4.3'"; Description = 'PowerShell module manifest' },
+        @{ Content = $source.ShellModule; Value = "`$script:WinTermModuleVersion = '1.4.3'"; Description = 'PowerShell module runtime' },
         @{ Content = $source.PackageShellAssets; Value = "'shell\shared\version.json'"; Description = 'Canonical shell version metadata packaging' },
-        @{ Content = $source.WorkspaceSerializer; Value = '"1.4.2"'; Description = 'Workspace application-version fallback' }
+        @{ Content = $source.WorkspaceSerializer; Value = '"1.4.3"'; Description = 'Workspace application-version fallback' }
     ))
     {
         Assert-Contains $surface.Content $surface.Value $surface.Description
     }
     foreach ($required in @(
-        "applicationVersion -eq '1.4.2'",
-        "packageVersion -eq '1.4.2.0'",
-        "moduleVersion -eq '1.4.2'",
-        "tag -eq 'v1.4.2'",
+        "applicationVersion -eq '1.4.3'",
+        "packageVersion -eq '1.4.3.0'",
+        "moduleVersion -eq '1.4.3'",
+        "tag -eq 'v1.4.3'",
         "Workspace Schema version remains 2",
         "Docking Model version remains 1",
         "Shell Protocol version remains 1",
         "Theme Schema remains at version 1"
     ))
     {
-        Assert-Contains $source.VerifyVersion $required 'Authoritative v1.4.2 version validation surface'
+        Assert-Contains $source.VerifyVersion $required 'Authoritative v1.4.3 version validation surface'
     }
 
     $testBinary = Join-Path $root "bin\$Platform\$Configuration\UnitTests_SettingsModel\SettingsModel.Unit.Tests.dll"
diff --git a/scripts/winterm/test.ps1 b/scripts/winterm/test.ps1
index 6f9677891..1abc8b26a 100644
--- a/scripts/winterm/test.ps1
+++ b/scripts/winterm/test.ps1
@@ -292,7 +292,7 @@ function Test-ShellExperienceFoundations
     }
 
     $manifest = Import-PowerShellDataFile -LiteralPath $moduleManifest
-    if ($manifest.ModuleVersion -ne '1.4.2' -or
+    if ($manifest.ModuleVersion -ne '1.4.3' -or
         $manifest.PrivateData.PSData.Prerelease -ne '' -or
         $manifest.PowerShellVersion -ne '5.1')
     {
diff --git a/scripts/winterm/verify-branding.ps1 b/scripts/winterm/verify-branding.ps1
index 6a2ed2179..b423b6e2e 100644
--- a/scripts/winterm/verify-branding.ps1
+++ b/scripts/winterm/verify-branding.ps1
@@ -126,7 +126,7 @@ function Test-Manifest
     Test-Requirement -Condition ($null -ne $identity -and $identity.Name -eq 'HelloThisWorld.winTerm') -Message "$Path uses package identity HelloThisWorld.winTerm"
     Test-Requirement -Condition ($null -ne $identity -and $identity.Name -notmatch '^Microsoft\.') -Message "$Path does not use a Microsoft package name"
     Test-Requirement -Condition ($null -ne $identity -and $identity.Publisher -ceq $ExpectedPublisher) -Message "$Path uses the expected non-Microsoft publisher"
-    Test-Requirement -Condition ($null -ne $identity -and $identity.Version -eq '1.4.2.0') -Message "$Path uses package version 1.4.2.0"
+    Test-Requirement -Condition ($null -ne $identity -and $identity.Version -eq '1.4.3.0') -Message "$Path uses package version 1.4.3.0"
     Test-Requirement -Condition ($null -ne $properties -and $properties.DisplayName -eq 'winTerm') -Message "$Path package display name is winTerm"
     Test-Requirement -Condition ($null -ne $application -and $application.Id -eq 'winTerm') -Message "$Path application ID is winTerm"
     Test-Requirement -Condition ($null -ne $visualElements -and $visualElements.DisplayName -eq 'winTerm') -Message "$Path application display name is winTerm"
diff --git a/scripts/winterm/verify-version.ps1 b/scripts/winterm/verify-version.ps1
index a4b7d7060..a941ce7eb 100644
--- a/scripts/winterm/verify-version.ps1
+++ b/scripts/winterm/verify-version.ps1
@@ -49,9 +49,9 @@ try
     $versionPath = Join-Path $repositoryRoot 'src\winterm\Branding\version.json'
     $version = Get-Content -LiteralPath $versionPath -Raw | ConvertFrom-Json
 
-    Assert-Condition ($version.applicationVersion -eq '1.4.2') 'Application version is 1.4.2'
-    Assert-Condition ($version.packageVersion -eq '1.4.2.0') 'Package version is 1.4.2.0'
-    Assert-Condition ($version.moduleVersion -eq '1.4.2') 'PowerShell module version is 1.4.2'
+    Assert-Condition ($version.applicationVersion -eq '1.4.3') 'Application version is 1.4.3'
+    Assert-Condition ($version.packageVersion -eq '1.4.3.0') 'Package version is 1.4.3.0'
+    Assert-Condition ($version.moduleVersion -eq '1.4.3') 'PowerShell module version is 1.4.3'
     Assert-Condition ($version.modulePrerelease -eq '') 'PowerShell module prerelease suffix is empty for stable'
 
     # The release workflow treats any channel other than 'stable' as a
@@ -66,7 +66,7 @@ try
     Assert-Condition ($version.packageVersion -match '^\d+\.\d+\.\d+\.\d+$') 'Package version stays a four-part numeric version'
     Assert-Condition ($version.moduleVersion -match '^\d+\.\d+\.\d+$') 'PowerShell module version stays numeric'
 
-    Assert-Condition ($version.tag -eq 'v1.4.2') 'Stable tag is v1.4.2'
+    Assert-Condition ($version.tag -eq 'v1.4.3') 'Stable tag is v1.4.3'
     Assert-Condition ($version.workspaceSchemaVersion -eq 2) 'Workspace Schema version remains 2'
     Assert-Condition ($version.dockingModelVersion -eq 1) 'Docking Model version remains 1'
     Assert-Condition ($version.shellProtocolVersion -eq 1) 'Shell Protocol version remains 1'
@@ -90,7 +90,7 @@ try
     $moduleManifest = Import-PowerShellDataFile -LiteralPath (Join-Path $repositoryRoot 'shell\powershell\winTerm.Shell\winTerm.Shell.psd1')
     Assert-Condition ($moduleManifest.ModuleVersion.ToString() -eq $version.moduleVersion) 'PowerShell manifest version matches release metadata'
     Assert-Condition ($moduleManifest.PrivateData.PSData.Prerelease -eq $version.modulePrerelease) 'PowerShell manifest prerelease matches release metadata'
-    Assert-Condition ((Get-Text 'shell\powershell\winTerm.Shell\winTerm.Shell.psm1').Contains("`$script:WinTermModuleVersion = '1.4.2'")) 'PowerShell module runtime version matches release metadata'
+    Assert-Condition ((Get-Text 'shell\powershell\winTerm.Shell\winTerm.Shell.psm1').Contains("`$script:WinTermModuleVersion = '1.4.3'")) 'PowerShell module runtime version matches release metadata'
 
     $shellVersion = Get-Text 'shell\shared\version.json' | ConvertFrom-Json
     Assert-Condition ($shellVersion.applicationVersion -eq $version.applicationVersion) 'Shell asset application version matches release metadata'
@@ -98,7 +98,7 @@ try
     Assert-Condition ($shellVersion.protocolVersion -eq $version.shellProtocolVersion) 'Shell asset protocol version matches release metadata'
 
     $releaseHeader = Get-Text 'src\winterm\Branding\ReleaseMetadata.h'
-    Assert-Condition ($releaseHeader.Contains('ApplicationVersion{ L"1.4.2" }')) 'About metadata application version is 1.4.2'
+    Assert-Condition ($releaseHeader.Contains('ApplicationVersion{ L"1.4.3" }')) 'About metadata application version is 1.4.3'
     Assert-Condition ($releaseHeader.Contains('ReleaseChannel{ L"Stable" }')) 'About metadata channel is Stable'
     Assert-Condition ($releaseHeader.Contains($version.microsoftTerminalUpstreamRevision)) 'About metadata contains the Microsoft Terminal upstream revision'
     Assert-Condition ($releaseHeader.Contains('WorkspaceSchemaVersion{ 2 }')) 'About metadata contains Workspace Schema version 2'
@@ -129,10 +129,10 @@ try
 
     Assert-Condition ((Get-Text 'src\winterm\Workspaces\Model\WorkspaceDescriptor.h').Contains('WorkspaceSchemaVersion{ 2 }')) 'Workspace model remains at Schema version 2'
     Assert-Condition ((Get-Text 'src\winterm\Workspaces\Model\WorkspaceDescriptor.h').Contains('DockingModelVersion{ 1 }')) 'Workspace model remains at Docking version 1'
-    Assert-Condition ((Get-Text 'src\winterm\Workspaces\Model\WorkspaceDescriptor.h').Contains('applicationVersion{ "1.4.2" }')) 'Workspace model application-version fallback is 1.4.2'
+    Assert-Condition ((Get-Text 'src\winterm\Workspaces\Model\WorkspaceDescriptor.h').Contains('applicationVersion{ "1.4.3" }')) 'Workspace model application-version fallback is 1.4.3'
     Assert-Condition ((Get-Text 'src\winterm\Shell\Protocol\ShellIntegrationProtocol.h').Contains('ShellProtocolVersion{ 1 }')) 'Shell protocol remains at version 1'
     Assert-Condition ((Get-Text 'src\winterm\Appearance\Themes\ThemeDescriptor.h').Contains('CurrentThemeSchemaVersion{ 1 }')) 'Theme Schema remains at version 1'
-    Assert-Condition ((Get-Text 'src\winterm\Workspaces\Persistence\WorkspaceSerializer.cpp').Contains('"1.4.2"')) 'Workspace serializer application-version fallback is 1.4.2'
+    Assert-Condition ((Get-Text 'src\winterm\Workspaces\Persistence\WorkspaceSerializer.cpp').Contains('"1.4.3"')) 'Workspace serializer application-version fallback is 1.4.3'
 
     $releaseWorkflow = Get-Text '.github\workflows\release.yml'
     Assert-Condition ($releaseWorkflow.Contains("- 'v*'")) 'Release workflow accepts version tags through a generic guarded trigger'
@@ -141,9 +141,9 @@ try
     Assert-Condition ($releaseWorkflow.Contains("`$expectedTag = `"v`$(`$metadata.applicationVersion)`"")) 'Release workflow derives the expected tag from version.json'
     Assert-Condition ($releaseWorkflow.Contains("`$metadata.tag -cne `$expectedTag")) 'Release workflow rejects a version metadata tag mismatch'
 
-    Assert-Condition ((Get-Text 'CHANGELOG.md').Contains('## 1.4.2 - 2026-08-25')) 'Changelog contains the 1.4.2 stable entry'
+    Assert-Condition ((Get-Text 'CHANGELOG.md').Contains('## 1.4.3 - 2026-08-27')) 'Changelog contains the 1.4.3 stable entry'
     Assert-Condition ((Get-Text 'README.md').Contains("current source version is ``$($version.applicationVersion)``")) 'README source version matches release metadata'
-    Assert-Condition ((Get-Text 'README.md').Contains('latest stable release is `1.4.2`')) 'README stable pointer is 1.4.2'
+    Assert-Condition ((Get-Text 'README.md').Contains('latest stable release is `1.4.3`')) 'README stable pointer is 1.4.3'
 
     # The Japanese README is a maintained counterpart, not a marketing summary:
     # both files must link to each other, the translation must point at the
@@ -162,7 +162,7 @@ try
     Assert-Condition ($readmeJa.Contains('[English](README.md)')) 'Japanese README links back to the English README'
     Assert-Condition ($readmeJa.Contains('https://winterm.dev/ja/')) 'Japanese README links to the Japanese website'
     Assert-Condition ($readmeJa.Contains("``$($version.applicationVersion)``")) 'Japanese README source version matches release metadata'
-    Assert-Condition ($readmeJa.Contains('`1.4.2`')) 'Japanese README stable pointer is 1.4.2'
+    Assert-Condition ($readmeJa.Contains('`1.4.3`')) 'Japanese README stable pointer is 1.4.3'
     Assert-Condition ($readmeJa.Contains('winTerm-<version>-setup-x64.exe')) 'Japanese README retains the installer asset pattern'
     Assert-Condition ($readmeJa.Contains('winTerm-<version>-portable-x64.zip')) 'Japanese README retains the portable asset pattern'
     Assert-Condition ($readmeJa.Contains('SHA256SUMS.txt')) 'Japanese README retains the checksum filename'
@@ -187,7 +187,7 @@ try
     if ($RequireTag)
     {
         $tag = (& git describe --tags --exact-match 2>$null).Trim()
-        Assert-Condition ($LASTEXITCODE -eq 0 -and $tag -eq $version.tag) 'Checked-out commit is exactly tagged v1.4.2'
+        Assert-Condition ($LASTEXITCODE -eq 0 -and $tag -eq $version.tag) 'Checked-out commit is exactly tagged v1.4.3'
     }
 
     Write-Host 'winTerm version consistency verification passed.' -ForegroundColor Green
diff --git a/shell/powershell/winTerm.Shell/winTerm.Shell.psd1 b/shell/powershell/winTerm.Shell/winTerm.Shell.psd1
index 5b1e4a033..dec5724e4 100644
--- a/shell/powershell/winTerm.Shell/winTerm.Shell.psd1
+++ b/shell/powershell/winTerm.Shell/winTerm.Shell.psd1
@@ -1,6 +1,6 @@
 @{
     RootModule = 'winTerm.Shell.psm1'
-    ModuleVersion = '1.4.2'
+    ModuleVersion = '1.4.3'
     GUID = 'f65cd8f4-5d25-4a2a-a0d4-58df1ab3dc5a'
     Author = 'winTerm contributors'
     CompanyName = 'winTerm'
diff --git a/shell/powershell/winTerm.Shell/winTerm.Shell.psm1 b/shell/powershell/winTerm.Shell/winTerm.Shell.psm1
index 43bc977f0..53460e771 100644
--- a/shell/powershell/winTerm.Shell/winTerm.Shell.psm1
+++ b/shell/powershell/winTerm.Shell/winTerm.Shell.psm1
@@ -3,7 +3,7 @@
 
 Set-StrictMode -Version Latest
 
-$script:WinTermModuleVersion = '1.4.2'
+$script:WinTermModuleVersion = '1.4.3'
 $script:WinTermProtocolVersion = 1
 $script:WinTermIntegrationEnabled = $false
 $script:WinTermPromptWrapped = $false
diff --git a/shell/shared/version.json b/shell/shared/version.json
index 7acd4496a..1b4297c57 100644
--- a/shell/shared/version.json
+++ b/shell/shared/version.json
@@ -1,6 +1,6 @@
 {
-  "applicationVersion": "1.4.2",
-  "moduleVersion": "1.4.2",
+  "applicationVersion": "1.4.3",
+  "moduleVersion": "1.4.3",
   "modulePrerelease": "",
   "protocolVersion": 1
 }
diff --git a/src/cascadia/CascadiaPackage/Package-winTerm.appxmanifest b/src/cascadia/CascadiaPackage/Package-winTerm.appxmanifest
index 0e8a2be4d..6341d135f 100644
--- a/src/cascadia/CascadiaPackage/Package-winTerm.appxmanifest
+++ b/src/cascadia/CascadiaPackage/Package-winTerm.appxmanifest
@@ -18,7 +18,7 @@
   <Identity
     Name="HelloThisWorld.winTerm"
     Publisher="CN=helloThisWorld"
-    Version="1.4.2.0" />
+    Version="1.4.3.0" />
 
   <Properties>
     <DisplayName>winTerm</DisplayName>
diff --git a/src/cascadia/TerminalControl/ControlCore.cpp b/src/cascadia/TerminalControl/ControlCore.cpp
index 7b1508cf1..298749af9 100644
--- a/src/cascadia/TerminalControl/ControlCore.cpp
+++ b/src/cascadia/TerminalControl/ControlCore.cpp
@@ -1425,16 +1425,18 @@ namespace winrt::Microsoft::Terminal::Control::implementation
 
     // Method Description:
     // - Sets selection's end position to match supplied cursor position, e.g. while mouse dragging.
-    // Arguments:
-    // - position: the point in terminal coordinates (in cells, not pixels)
-    void ControlCore::SetEndSelectionPoint(const til::point position)
-    {
-        const auto lock = _terminal->LockForWriting();
-
-        if (!_terminal->IsSelectionActive())
-        {
-            return;
-        }
+    // Arguments:
+    // - position: the point in terminal coordinates (in cells, not pixels)
+    // Return Value:
+    // - true if an active selection was updated; false if no selection exists
+    bool ControlCore::SetEndSelectionPoint(const til::point position)
+    {
+        const auto lock = _terminal->LockForWriting();
+
+        if (!_terminal->IsSelectionActive())
+        {
+            return false;
+        }
 
         // clamp the converted position to be within the viewport bounds
         // x: allow range of [0, RightExclusive]
@@ -1444,10 +1446,11 @@ namespace winrt::Microsoft::Terminal::Control::implementation
             std::clamp(position.y, 0, _terminal->GetViewport().Height() - 1)
         };
 
-        // save location (for rendering) + render
-        _terminal->SetSelectionEnd(terminalPosition);
-        _updateSelectionUI();
-    }
+        // save location (for rendering) + render
+        _terminal->SetSelectionEnd(terminalPosition);
+        _updateSelectionUI();
+        return true;
+    }
 
     // Method Description:
     // - Given a copy-able selection, get the selected text from the buffer and send it to the
diff --git a/src/cascadia/TerminalControl/ControlCore.h b/src/cascadia/TerminalControl/ControlCore.h
index fbd258a93..24abcbae0 100644
--- a/src/cascadia/TerminalControl/ControlCore.h
+++ b/src/cascadia/TerminalControl/ControlCore.h
@@ -251,7 +251,7 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         bool CopyOnSelect() const;
         Control::SelectionData SelectionInfo() const;
         void SetSelectionAnchor(const til::point position);
-        void SetEndSelectionPoint(const til::point position);
+        bool SetEndSelectionPoint(const til::point position);
 
         SearchResults Search(const SearchRequest& request);
         const std::vector<til::point_span>& SearchResultRows() const noexcept;
diff --git a/src/cascadia/TerminalControl/ControlInteractivity.cpp b/src/cascadia/TerminalControl/ControlInteractivity.cpp
index 2b9be4047..eac790cb0 100644
--- a/src/cascadia/TerminalControl/ControlInteractivity.cpp
+++ b/src/cascadia/TerminalControl/ControlInteractivity.cpp
@@ -384,11 +384,12 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         // GH#4603 - don't modify the selection if the pointer press didn't
         // actually start _in_ the control bounds. Case in point - someone drags
         // a file into the bounds of the control. That shouldn't send the
-        // selection into space.
-        else if (focused && pointerPressedInBounds && WI_IsFlagSet(buttonState, MouseButtonState::IsLeftButtonDown))
-        {
-            if (_singleClickTouchdownPos)
-            {
+        // selection into space.
+        else if (focused && pointerPressedInBounds && WI_IsFlagSet(buttonState, MouseButtonState::IsLeftButtonDown))
+        {
+            auto updateSelectionEnd = !_singleClickTouchdownPos;
+            if (_singleClickTouchdownPos)
+            {
                 // Figure out if the user's moved a 1/4th of a cell's smaller axis
                 // (practically always the width) away from the clickdown point.
                 const auto fontSizeInDips = _core->FontSizeInDips();
@@ -423,12 +424,21 @@ namespace winrt::Microsoft::Terminal::Control::implementation
                     }
                     _core->SetSelectionAnchor(termPos);
 
-                    // stop tracking the touchdown point
-                    _singleClickTouchdownPos = std::nullopt;
-                }
-            }
-
-            SetEndSelectionPoint(pixelPosition);
+                    // stop tracking the touchdown point
+                    _singleClickTouchdownPos = std::nullopt;
+                    updateSelectionEnd = true;
+                }
+            }
+
+            // Normal physical mouse jitter must not turn a click into a
+            // selection gesture. Before the drag threshold is crossed there
+            // is no selection to extend and selection-copy state must remain
+            // untouched. Once the drag owns the gesture, subsequent moves
+            // continue updating the existing selection end.
+            if (updateSelectionEnd)
+            {
+                SetEndSelectionPoint(pixelPosition);
+            }
         }
 
         _core->SetHoveredCell(terminalPosition.to_core_point());
@@ -488,11 +498,21 @@ namespace winrt::Microsoft::Terminal::Control::implementation
         }
 
         // Only a left click release when copy on select is active should perform a copy.
-        // Right clicks and middle clicks should not need to do anything when released.
-        const auto isLeftMouseRelease = pointerUpdateKind == WM_LBUTTONUP;
-
+        // Right clicks and middle clicks should not need to do anything when released.
+        const auto isLeftMouseRelease = pointerUpdateKind == WM_LBUTTONUP;
+        const auto hasSelection = _core->HasSelection();
+
+        // A copy candidate without a real selection is stale by definition.
+        // Normalize it here without disturbing legitimate mark-mode or
+        // CopyOnSelect state while a selection remains active.
+        if (!hasSelection)
+        {
+            _selectionNeedsToBeCopied = false;
+        }
+
         if (_core->CopyOnSelect() &&
             isLeftMouseRelease &&
+            hasSelection &&
             _selectionNeedsToBeCopied)
         {
             // IMPORTANT!
@@ -503,7 +523,6 @@ namespace winrt::Microsoft::Terminal::Control::implementation
 
         if (isLeftMouseRelease &&
             repositionPending &&
-            !_selectionNeedsToBeCopied &&
             !modifiers.IsAltPressed() &&
             !modifiers.IsShiftPressed() &&
             !modifiers.IsCtrlPressed())
@@ -728,13 +747,19 @@ namespace winrt::Microsoft::Terminal::Control::implementation
     // - Sets selection's end position to match supplied cursor position, e.g. while mouse dragging.
     // Arguments:
     // - cursorPosition: in pixels, relative to the origin of the control
-    void ControlInteractivity::SetEndSelectionPoint(const Core::Point pixelPosition)
-    {
-        // Don't round in VT mouse mode; cell-level precision matters more
-        const auto round = !_core->IsVtMouseModeEnabled();
-        _core->SetEndSelectionPoint(_getTerminalPosition(til::point{ pixelPosition }, round));
-        _selectionNeedsToBeCopied = true;
-    }
+    void ControlInteractivity::SetEndSelectionPoint(const Core::Point pixelPosition)
+    {
+        // Don't round in VT mouse mode; cell-level precision matters more
+        const auto round = !_core->IsVtMouseModeEnabled();
+        if (_core->SetEndSelectionPoint(_getTerminalPosition(til::point{ pixelPosition }, round)))
+        {
+            _selectionNeedsToBeCopied = true;
+        }
+        else
+        {
+            _selectionNeedsToBeCopied = false;
+        }
+    }
 
     // Method Description:
     // - Gets the corresponding viewport terminal position for the point in
diff --git a/src/cascadia/UnitTests_Control/ControlInteractivityTests.cpp b/src/cascadia/UnitTests_Control/ControlInteractivityTests.cpp
index 8ea34c02d..58909f660 100644
--- a/src/cascadia/UnitTests_Control/ControlInteractivityTests.cpp
+++ b/src/cascadia/UnitTests_Control/ControlInteractivityTests.cpp
@@ -44,6 +44,13 @@ namespace ControlUnitTests
         TEST_METHOD(AltBufferClampMouse);
         TEST_METHOD(RightClickCopiesSelectionThenPastes);
         TEST_METHOD(CursorRepositionOccursOnReleaseOnly);
+        TEST_METHOD(CursorRepositionSurvivesSubThresholdMovement);
+        TEST_METHOD(CursorRepositionSurvivesSeveralSubThresholdMovements);
+        TEST_METHOD(CursorRepositionSurvivesRepeatedClicks);
+        TEST_METHOD(CursorRepositionGestureCannotPoisonNextClick);
+        TEST_METHOD(CursorRepositionHonorsDragThresholdBoundary);
+        TEST_METHOD(CursorRepositionCopyOnSelectOwnsOnlyRealSelections);
+        TEST_METHOD(CursorRepositionRecoversFromStaleCopyState);
         TEST_METHOD(CursorRepositionDragAndSelectionPriority);
 
         TEST_CLASS_SETUP(ClassSetup)
@@ -1114,6 +1121,273 @@ namespace ControlUnitTests
         VERIFY_IS_FALSE(interactivity->_cursorRepositionPending);
     }
 
+    void ControlInteractivityTests::CursorRepositionSurvivesSubThresholdMovement()
+    {
+        auto [settings, conn] = _createSettingsAndConnection();
+        settings->RepositionCursorWithMouse(true);
+        auto [core, interactivity] = _createCoreAndInteractivity(*settings, *conn);
+        _standardInit(core, interactivity);
+        conn->WriteInput(winrt_wstring_to_array_view(L"\x1b]133;A\aPS> \x1b]133;B\aabcdef"));
+
+        std::wstring sent;
+        conn->TerminalOutput([&](const winrt::array_view<const char16_t> value) {
+            sent.append(winrt_array_to_wstring_view(value));
+        });
+
+        const auto font = core->FontSizeInDips();
+        const Core::Point click{ static_cast<int32_t>(font.Width * 5.5f), static_cast<int32_t>(font.Height * 0.5f) };
+        const Core::Point jitter{ click.X + 1, click.Y };
+        const auto modifiers = ControlKeyStates{};
+        const auto leftMouseDown = Control::MouseButtonState::IsLeftButtonDown;
+        const Control::MouseButtonState noMouseDown{};
+
+        interactivity->PointerPressed(leftMouseDown, WM_LBUTTONDOWN, 1, modifiers, click);
+        interactivity->PointerMoved(leftMouseDown, WM_MOUSEMOVE, modifiers, true, jitter, true);
+        VERIFY_IS_FALSE(core->HasSelection(), L"Sub-threshold movement must not create a selection");
+        VERIFY_IS_TRUE(interactivity->_cursorRepositionPending, L"Sub-threshold movement must remain a click");
+        VERIFY_IS_FALSE(interactivity->_selectionNeedsToBeCopied, L"Sub-threshold movement must not create a phantom copy candidate");
+
+        interactivity->PointerReleased(noMouseDown, WM_LBUTTONUP, modifiers, jitter);
+        VERIFY_ARE_EQUAL(std::wstring{ L"\x1b[D\x1b[D\x1b[D\x1b[D" }, sent);
+        VERIFY_IS_FALSE(interactivity->_cursorRepositionPending);
+        VERIFY_IS_FALSE(interactivity->_selectionNeedsToBeCopied);
+    }
+
+    void ControlInteractivityTests::CursorRepositionSurvivesSeveralSubThresholdMovements()
+    {
+        auto [settings, conn] = _createSettingsAndConnection();
+        settings->RepositionCursorWithMouse(true);
+        auto [core, interactivity] = _createCoreAndInteractivity(*settings, *conn);
+        _standardInit(core, interactivity);
+        conn->WriteInput(winrt_wstring_to_array_view(L"\x1b]133;A\aPS> \x1b]133;B\aabcdef"));
+
+        std::wstring sent;
+        conn->TerminalOutput([&](const winrt::array_view<const char16_t> value) {
+            sent.append(winrt_array_to_wstring_view(value));
+        });
+
+        const auto font = core->FontSizeInDips();
+        const Core::Point click{ static_cast<int32_t>(font.Width * 5.5f), static_cast<int32_t>(font.Height * 0.5f) };
+        const std::array jitter{
+            Core::Point{ click.X + 1, click.Y },
+            Core::Point{ click.X - 1, click.Y },
+            Core::Point{ click.X + 1, click.Y },
+        };
+        const auto modifiers = ControlKeyStates{};
+        const auto leftMouseDown = Control::MouseButtonState::IsLeftButtonDown;
+        const Control::MouseButtonState noMouseDown{};
+
+        interactivity->PointerPressed(leftMouseDown, WM_LBUTTONDOWN, 1, modifiers, click);
+        for (const auto& position : jitter)
+        {
+            interactivity->PointerMoved(leftMouseDown, WM_MOUSEMOVE, modifiers, true, position, true);
+            VERIFY_IS_FALSE(core->HasSelection());
+            VERIFY_IS_TRUE(interactivity->_cursorRepositionPending);
+            VERIFY_IS_FALSE(interactivity->_selectionNeedsToBeCopied);
+        }
+
+        interactivity->PointerReleased(noMouseDown, WM_LBUTTONUP, modifiers, jitter.back());
+        VERIFY_ARE_EQUAL(std::wstring{ L"\x1b[D\x1b[D\x1b[D\x1b[D" }, sent);
+        VERIFY_IS_FALSE(core->HasSelection());
+    }
+
+    void ControlInteractivityTests::CursorRepositionSurvivesRepeatedClicks()
+    {
+        auto [settings, conn] = _createSettingsAndConnection();
+        settings->RepositionCursorWithMouse(true);
+        auto [core, interactivity] = _createCoreAndInteractivity(*settings, *conn);
+        _standardInit(core, interactivity);
+        conn->WriteInput(winrt_wstring_to_array_view(L"\x1b]133;A\aPS> \x1b]133;B\aabcdefghijklmnopqrst"));
+
+        std::wstring sent;
+        conn->TerminalOutput([&](const winrt::array_view<const char16_t> value) {
+            sent.append(winrt_array_to_wstring_view(value));
+        });
+
+        const auto expectedMove = [](const int32_t from, const int32_t to) {
+            std::wstring expected;
+            const auto sequence = to < from ? L"\x1b[D" : L"\x1b[C";
+            for (auto i = 0; i < std::abs(to - from); ++i)
+            {
+                expected.append(sequence);
+            }
+            return expected;
+        };
+        const auto font = core->FontSizeInDips();
+        const auto modifiers = ControlKeyStates{};
+        const auto leftMouseDown = Control::MouseButtonState::IsLeftButtonDown;
+        const Control::MouseButtonState noMouseDown{};
+        uint64_t timestamp = 1;
+
+        for (int32_t target = 0; target < 10; ++target)
+        {
+            const Core::Point click{ static_cast<int32_t>(font.Width * (target + 4.5f)), static_cast<int32_t>(font.Height * 0.5f) };
+            const auto cursorBefore = core->CursorPosition().X;
+            const auto terminalTarget = interactivity->_getTerminalPosition(til::point{ click }, true).x;
+            interactivity->PointerPressed(leftMouseDown, WM_LBUTTONDOWN, timestamp, modifiers, click);
+            interactivity->PointerReleased(noMouseDown, WM_LBUTTONUP, modifiers, click);
+
+            VERIFY_ARE_EQUAL(expectedMove(cursorBefore, terminalTarget), sent, L"Every independent click must emit the correct cursor input");
+            VERIFY_IS_FALSE(core->HasSelection());
+            VERIFY_IS_FALSE(interactivity->_cursorRepositionPending);
+            VERIFY_IS_FALSE(interactivity->_selectionNeedsToBeCopied);
+
+            sent.clear();
+            timestamp += interactivity->_multiClickTimer + 10;
+        }
+    }
+
+    void ControlInteractivityTests::CursorRepositionGestureCannotPoisonNextClick()
+    {
+        auto [settings, conn] = _createSettingsAndConnection();
+        settings->RepositionCursorWithMouse(true);
+        auto [core, interactivity] = _createCoreAndInteractivity(*settings, *conn);
+        _standardInit(core, interactivity);
+        conn->WriteInput(winrt_wstring_to_array_view(L"\x1b]133;A\aPS> \x1b]133;B\aabcdef"));
+
+        std::wstring sent;
+        conn->TerminalOutput([&](const winrt::array_view<const char16_t> value) {
+            sent.append(winrt_array_to_wstring_view(value));
+        });
+
+        const auto font = core->FontSizeInDips();
+        const Core::Point first{ static_cast<int32_t>(font.Width * 5.5f), static_cast<int32_t>(font.Height * 0.5f) };
+        const Core::Point second{ static_cast<int32_t>(font.Width * 6.5f), static_cast<int32_t>(font.Height * 0.5f) };
+        const auto modifiers = ControlKeyStates{};
+        const auto leftMouseDown = Control::MouseButtonState::IsLeftButtonDown;
+        const Control::MouseButtonState noMouseDown{};
+
+        interactivity->PointerPressed(leftMouseDown, WM_LBUTTONDOWN, 1, modifiers, first);
+        interactivity->PointerMoved(leftMouseDown, WM_MOUSEMOVE, modifiers, true, Core::Point{ first.X + 1, first.Y }, true);
+        interactivity->PointerReleased(noMouseDown, WM_LBUTTONUP, modifiers, first);
+        VERIFY_ARE_EQUAL(std::wstring{ L"\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D" }, sent);
+
+        sent.clear();
+        interactivity->PointerPressed(leftMouseDown, WM_LBUTTONDOWN, interactivity->_multiClickTimer + 10, modifiers, second);
+        interactivity->PointerReleased(noMouseDown, WM_LBUTTONUP, modifiers, second);
+        VERIFY_ARE_EQUAL(std::wstring{ L"\x1b[C" }, sent, L"A jittered gesture must not poison the next click");
+        VERIFY_IS_FALSE(core->HasSelection());
+        VERIFY_IS_FALSE(interactivity->_selectionNeedsToBeCopied);
+    }
+
+    void ControlInteractivityTests::CursorRepositionHonorsDragThresholdBoundary()
+    {
+        auto [settings, conn] = _createSettingsAndConnection();
+        settings->RepositionCursorWithMouse(true);
+        auto [core, interactivity] = _createCoreAndInteractivity(*settings, *conn);
+        _standardInit(core, interactivity);
+        conn->WriteInput(winrt_wstring_to_array_view(L"\x1b]133;A\aPS> \x1b]133;B\aabcdef"));
+
+        std::wstring sent;
+        conn->TerminalOutput([&](const winrt::array_view<const char16_t> value) {
+            sent.append(winrt_array_to_wstring_view(value));
+        });
+
+        const auto font = core->FontSizeInDips();
+        const auto maxDistanceSquared = font.Width * font.Width / 16.0f;
+        int32_t boundaryDelta = 1;
+        while (static_cast<float>(boundaryDelta * boundaryDelta) < maxDistanceSquared)
+        {
+            ++boundaryDelta;
+        }
+        const auto belowDelta = boundaryDelta - 1;
+        VERIFY_IS_TRUE(static_cast<float>(belowDelta * belowDelta) < maxDistanceSquared);
+        VERIFY_IS_TRUE(static_cast<float>(boundaryDelta * boundaryDelta) >= maxDistanceSquared);
+
+        const Core::Point start{ static_cast<int32_t>(font.Width * 5.5f), static_cast<int32_t>(font.Height * 0.5f) };
+        const auto modifiers = ControlKeyStates{};
+        const auto leftMouseDown = Control::MouseButtonState::IsLeftButtonDown;
+        const Control::MouseButtonState noMouseDown{};
+
+        interactivity->PointerPressed(leftMouseDown, WM_LBUTTONDOWN, 1, modifiers, start);
+        interactivity->PointerMoved(leftMouseDown, WM_MOUSEMOVE, modifiers, true, Core::Point{ start.X + belowDelta, start.Y }, true);
+        VERIFY_IS_FALSE(core->HasSelection(), L"distanceSquared below the threshold remains a click");
+        VERIFY_IS_TRUE(interactivity->_cursorRepositionPending);
+        interactivity->PointerReleased(noMouseDown, WM_LBUTTONUP, modifiers, start);
+        VERIFY_IS_FALSE(sent.empty());
+
+        sent.clear();
+        interactivity->PointerPressed(leftMouseDown, WM_LBUTTONDOWN, interactivity->_multiClickTimer + 10, modifiers, start);
+        interactivity->PointerMoved(leftMouseDown, WM_MOUSEMOVE, modifiers, true, Core::Point{ start.X + boundaryDelta, start.Y }, true);
+        VERIFY_IS_TRUE(core->HasSelection(), L"distanceSquared at the threshold starts selection");
+        VERIFY_IS_FALSE(interactivity->_cursorRepositionPending);
+        VERIFY_IS_TRUE(interactivity->_selectionNeedsToBeCopied);
+        interactivity->PointerReleased(noMouseDown, WM_LBUTTONUP, modifiers, start);
+        VERIFY_IS_TRUE(sent.empty(), L"A threshold-crossing selection must not reposition the cursor");
+    }
+
+    void ControlInteractivityTests::CursorRepositionCopyOnSelectOwnsOnlyRealSelections()
+    {
+        auto [settings, conn] = _createSettingsAndConnection();
+        settings->RepositionCursorWithMouse(true);
+        settings->CopyOnSelect(true);
+        auto [core, interactivity] = _createCoreAndInteractivity(*settings, *conn);
+        _standardInit(core, interactivity);
+        conn->WriteInput(winrt_wstring_to_array_view(L"\x1b]133;A\aPS> \x1b]133;B\aabcdef"));
+
+        size_t copyCount = 0;
+        core->WriteToClipboard([&](auto&&, auto&&) {
+            ++copyCount;
+        });
+
+        std::wstring sent;
+        conn->TerminalOutput([&](const winrt::array_view<const char16_t> value) {
+            sent.append(winrt_array_to_wstring_view(value));
+        });
+
+        const auto font = core->FontSizeInDips();
+        const Core::Point start{ static_cast<int32_t>(font.Width * 5.5f), static_cast<int32_t>(font.Height * 0.5f) };
+        const Core::Point dragEnd{ static_cast<int32_t>(font.Width * 9.5f), start.Y };
+        const auto modifiers = ControlKeyStates{};
+        const auto leftMouseDown = Control::MouseButtonState::IsLeftButtonDown;
+        const Control::MouseButtonState noMouseDown{};
+
+        interactivity->PointerPressed(leftMouseDown, WM_LBUTTONDOWN, 1, modifiers, start);
+        interactivity->PointerMoved(leftMouseDown, WM_MOUSEMOVE, modifiers, true, dragEnd, true);
+        interactivity->PointerReleased(noMouseDown, WM_LBUTTONUP, modifiers, dragEnd);
+        VERIFY_IS_TRUE(core->HasSelection());
+        VERIFY_ARE_EQUAL(1u, copyCount, L"CopyOnSelect must copy a real drag selection");
+        VERIFY_IS_TRUE(sent.empty());
+
+        core->ClearSelection();
+        const auto nextTimestamp = interactivity->_multiClickTimer + 10;
+        interactivity->PointerPressed(leftMouseDown, WM_LBUTTONDOWN, nextTimestamp, modifiers, start);
+        interactivity->PointerMoved(leftMouseDown, WM_MOUSEMOVE, modifiers, true, Core::Point{ start.X + 1, start.Y }, true);
+        interactivity->PointerReleased(noMouseDown, WM_LBUTTONUP, modifiers, start);
+        VERIFY_ARE_EQUAL(1u, copyCount, L"Sub-threshold jitter must not create a phantom CopyOnSelect candidate");
+        VERIFY_IS_FALSE(core->HasSelection());
+        VERIFY_IS_FALSE(interactivity->_selectionNeedsToBeCopied);
+        VERIFY_IS_FALSE(sent.empty(), L"CopyOnSelect must not prevent a real plain click");
+    }
+
+    void ControlInteractivityTests::CursorRepositionRecoversFromStaleCopyState()
+    {
+        auto [settings, conn] = _createSettingsAndConnection();
+        settings->RepositionCursorWithMouse(true);
+        auto [core, interactivity] = _createCoreAndInteractivity(*settings, *conn);
+        _standardInit(core, interactivity);
+        conn->WriteInput(winrt_wstring_to_array_view(L"\x1b]133;A\aPS> \x1b]133;B\aabcdef"));
+
+        std::wstring sent;
+        conn->TerminalOutput([&](const winrt::array_view<const char16_t> value) {
+            sent.append(winrt_array_to_wstring_view(value));
+        });
+
+        VERIFY_IS_FALSE(core->HasSelection());
+        interactivity->_selectionNeedsToBeCopied = true;
+
+        const auto font = core->FontSizeInDips();
+        const Core::Point click{ static_cast<int32_t>(font.Width * 5.5f), static_cast<int32_t>(font.Height * 0.5f) };
+        const auto modifiers = ControlKeyStates{};
+        const auto leftMouseDown = Control::MouseButtonState::IsLeftButtonDown;
+        const Control::MouseButtonState noMouseDown{};
+
+        interactivity->PointerPressed(leftMouseDown, WM_LBUTTONDOWN, 1, modifiers, click);
+        interactivity->PointerReleased(noMouseDown, WM_LBUTTONUP, modifiers, click);
+        VERIFY_ARE_EQUAL(std::wstring{ L"\x1b[D\x1b[D\x1b[D\x1b[D\x1b[D" }, sent, L"Stale copy state must not veto a real click");
+        VERIFY_IS_FALSE(interactivity->_selectionNeedsToBeCopied, L"No-selection release must normalize stale copy state");
+    }
+
     void ControlInteractivityTests::CursorRepositionDragAndSelectionPriority()
     {
         auto [settings, conn] = _createSettingsAndConnection();
@@ -1130,6 +1404,7 @@ namespace ControlUnitTests
         const auto font = core->FontSizeInDips();
         const Core::Point start{ static_cast<int32_t>(font.Width * 5.5f), static_cast<int32_t>(font.Height * 0.5f) };
         const Core::Point end{ static_cast<int32_t>(font.Width * 8.5f), static_cast<int32_t>(font.Height * 0.5f) };
+        const Core::Point fartherEnd{ static_cast<int32_t>(font.Width * 9.5f), static_cast<int32_t>(font.Height * 0.5f) };
         const auto modifiers = ControlKeyStates{};
         const auto leftMouseDown = Control::MouseButtonState::IsLeftButtonDown;
         const Control::MouseButtonState noMouseDown{};
@@ -1138,7 +1413,10 @@ namespace ControlUnitTests
         interactivity->PointerMoved(leftMouseDown, WM_LBUTTONDOWN, modifiers, true, end, true);
         VERIFY_IS_TRUE(core->HasSelection());
         VERIFY_IS_FALSE(interactivity->_cursorRepositionPending);
-        interactivity->PointerReleased(noMouseDown, WM_LBUTTONUP, modifiers, end);
+        const auto firstSelectionEnd = core->_terminal->GetSelectionEnd();
+        interactivity->PointerMoved(leftMouseDown, WM_MOUSEMOVE, modifiers, true, fartherEnd, true);
+        VERIFY_ARE_NOT_EQUAL(firstSelectionEnd.x, core->_terminal->GetSelectionEnd().x, L"Selection end must continue updating after the drag starts");
+        interactivity->PointerReleased(noMouseDown, WM_LBUTTONUP, modifiers, fartherEnd);
         VERIFY_IS_TRUE(sent.empty(), L"A drag selection must never move the command-line cursor first");
 
         core->ClearSelection();
diff --git a/src/cascadia/WindowsTerminal/WindowsTerminal.rc b/src/cascadia/WindowsTerminal/WindowsTerminal.rc
index af8f7886f..91d0e3e0b 100644
--- a/src/cascadia/WindowsTerminal/WindowsTerminal.rc
+++ b/src/cascadia/WindowsTerminal/WindowsTerminal.rc
@@ -83,8 +83,8 @@ IDI_APPICON_HC_WHITE    ICON                    "..\\..\\..\\res\\terminal\\imag
 
 #if defined(WT_BRANDING_WINTERM)
 1 VERSIONINFO
- FILEVERSION 1,4,2,0
- PRODUCTVERSION 1,4,2,0
+ FILEVERSION 1,4,3,0
+ PRODUCTVERSION 1,4,3,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS VS_FF_DEBUG
@@ -101,12 +101,12 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "helloThisWorld\0"
             VALUE "FileDescription", "winTerm Terminal Host\0"
-            VALUE "FileVersion", "1.4.2.0\0"
+            VALUE "FileVersion", "1.4.3.0\0"
             VALUE "InternalName", "WindowsTerminal\0"
             VALUE "LegalCopyright", "Copyright (c) winTerm contributors. Portions copyright Microsoft Corporation.\0"
             VALUE "OriginalFilename", "WindowsTerminal.exe\0"
             VALUE "ProductName", "winTerm\0"
-            VALUE "ProductVersion", "1.4.2\0"
+            VALUE "ProductVersion", "1.4.3\0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/src/cascadia/wt/wt.rc b/src/cascadia/wt/wt.rc
index f8f1f5c26..78ccacfea 100644
--- a/src/cascadia/wt/wt.rc
+++ b/src/cascadia/wt/wt.rc
@@ -58,8 +58,8 @@ IDI_APPICON             ICON                    "..\\..\\..\\res\\terminal.ico"
 
 #if defined(WT_BRANDING_WINTERM)
 1 VERSIONINFO
- FILEVERSION 1,4,2,0
- PRODUCTVERSION 1,4,2,0
+ FILEVERSION 1,4,3,0
+ PRODUCTVERSION 1,4,3,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS VS_FF_DEBUG
@@ -76,12 +76,12 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "helloThisWorld\0"
             VALUE "FileDescription", "winTerm Launcher\0"
-            VALUE "FileVersion", "1.4.2.0\0"
+            VALUE "FileVersion", "1.4.3.0\0"
             VALUE "InternalName", "winTerm\0"
             VALUE "LegalCopyright", "Copyright (c) winTerm contributors. Portions copyright Microsoft Corporation.\0"
             VALUE "OriginalFilename", "winTerm.exe\0"
             VALUE "ProductName", "winTerm\0"
-            VALUE "ProductVersion", "1.4.2\0"
+            VALUE "ProductVersion", "1.4.3\0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/src/winterm-tools/winterm-shim/winterm-shim.rc b/src/winterm-tools/winterm-shim/winterm-shim.rc
index 6f0e57f9f..bf7ed5e61 100644
--- a/src/winterm-tools/winterm-shim/winterm-shim.rc
+++ b/src/winterm-tools/winterm-shim/winterm-shim.rc
@@ -4,8 +4,8 @@
 #include <winres.h>
 
 1 VERSIONINFO
- FILEVERSION 1,4,2,0
- PRODUCTVERSION 1,4,2,0
+ FILEVERSION 1,4,3,0
+ PRODUCTVERSION 1,4,3,0
  FILEFLAGSMASK 0x3fL
 #ifdef _DEBUG
  FILEFLAGS VS_FF_DEBUG
@@ -22,12 +22,12 @@ BEGIN
         BEGIN
             VALUE "CompanyName", "helloThisWorld\0"
             VALUE "FileDescription", "winTerm Shell Integration Helper\0"
-            VALUE "FileVersion", "1.4.2.0\0"
+            VALUE "FileVersion", "1.4.3.0\0"
             VALUE "InternalName", "winterm-shim\0"
             VALUE "LegalCopyright", "Copyright (c) winTerm contributors.\0"
             VALUE "OriginalFilename", "winterm-shim.exe\0"
             VALUE "ProductName", "winTerm\0"
-            VALUE "ProductVersion", "1.4.2\0"
+            VALUE "ProductVersion", "1.4.3\0"
         END
     END
     BLOCK "VarFileInfo"
diff --git a/src/winterm/Branding/ReleaseMetadata.h b/src/winterm/Branding/ReleaseMetadata.h
index 459e561f8..864f80279 100644
--- a/src/winterm/Branding/ReleaseMetadata.h
+++ b/src/winterm/Branding/ReleaseMetadata.h
@@ -25,7 +25,7 @@
 namespace winTerm::Branding
 {
     inline constexpr std::wstring_view Publisher{ L"helloThisWorld" };
-    inline constexpr std::wstring_view ApplicationVersion{ L"1.4.2" };
+    inline constexpr std::wstring_view ApplicationVersion{ L"1.4.3" };
     inline constexpr std::wstring_view ReleaseChannel{ L"Stable" };
     inline constexpr std::wstring_view CommitSha{ WINTERM_BUILD_COMMIT_SHA };
     inline constexpr std::wstring_view BuildTimestamp{ WINTERM_BUILD_TIMESTAMP };
diff --git a/src/winterm/Branding/version.json b/src/winterm/Branding/version.json
index 018dfbb5b..e451ffe24 100644
--- a/src/winterm/Branding/version.json
+++ b/src/winterm/Branding/version.json
@@ -1,10 +1,10 @@
 {
-  "applicationVersion": "1.4.2",
-  "packageVersion": "1.4.2.0",
-  "moduleVersion": "1.4.2",
+  "applicationVersion": "1.4.3",
+  "packageVersion": "1.4.3.0",
+  "moduleVersion": "1.4.3",
   "modulePrerelease": "",
   "channel": "stable",
-  "tag": "v1.4.2",
+  "tag": "v1.4.3",
   "workspaceSchemaVersion": 2,
   "dockingModelVersion": 1,
   "shellProtocolVersion": 1,
diff --git a/src/winterm/Workspaces/Model/WorkspaceDescriptor.h b/src/winterm/Workspaces/Model/WorkspaceDescriptor.h
index e6ab8a1ce..21eb4e3f4 100644
--- a/src/winterm/Workspaces/Model/WorkspaceDescriptor.h
+++ b/src/winterm/Workspaces/Model/WorkspaceDescriptor.h
@@ -219,7 +219,7 @@ namespace winTerm::Workspaces
         std::string createdAt;
         std::string updatedAt;
         WorkspaceSource source{ WorkspaceSource::User };
-        std::string applicationVersion{ "1.4.2" };
+        std::string applicationVersion{ "1.4.3" };
         uint32_t protocolVersion{ 1 };
         uint32_t dockingModelVersion{ DockingModelVersion };
         WorkspaceStartupBehavior startupBehavior;
diff --git a/src/winterm/Workspaces/Persistence/WorkspaceSerializer.cpp b/src/winterm/Workspaces/Persistence/WorkspaceSerializer.cpp
index 67ef76cff..3ef38a502 100644
--- a/src/winterm/Workspaces/Persistence/WorkspaceSerializer.cpp
+++ b/src/winterm/Workspaces/Persistence/WorkspaceSerializer.cpp
@@ -618,7 +618,7 @@ WorkspaceDescriptor WorkspaceSerializer::FromJson(const Json::Value& json, const
         throw std::runtime_error("The workspace source is not supported.");
     }
     workspace.source = *source;
-    workspace.applicationVersion = StringOrDefault(json, "applicationVersion", "1.4.2");
+    workspace.applicationVersion = StringOrDefault(json, "applicationVersion", "1.4.3");
     workspace.protocolVersion = UIntOrDefault(json, "protocolVersion", 1);
     workspace.dockingModelVersion = UIntOrDefault(json, "dockingModelVersion", DockingModelVersion);
     if (const auto& startup = json["startupBehavior"]; !startup.isNull())