diff --git a/.github/workflows/docs.yml b/.github/workflows/docs.yml
index 030d1b8..1133d05 100644
--- a/.github/workflows/docs.yml
+++ b/.github/workflows/docs.yml
@@ -89,12 +89,15 @@ jobs:
           path: reference-html
 
       - name: Package release documentation
-        run: tar -C reference-html -czf pjson-api-reference.tar.gz .
+        run: |
+          tar -C reference-html -czf pjson-api-reference.tar.gz .
+          sha256sum pjson-api-reference.tar.gz > pjson-api-reference.tar.gz.sha256
 
-      - name: Attach documentation archive
+      - name: Attach documentation archive and checksum
         env:
           GH_TOKEN: ${{ github.token }}
           RELEASE_TAG: ${{ github.event.release.tag_name }}
-        run: >-
-          gh release upload "${RELEASE_TAG}"
-          pjson-api-reference.tar.gz
+        run: |
+          gh release upload "${RELEASE_TAG}" \
+            pjson-api-reference.tar.gz \
+            pjson-api-reference.tar.gz.sha256
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9dc6d12..7d50a1e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,8 @@ on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and releases follow
 
 ## [Unreleased]
 
+## [1.0.0] - 2026-08-31
+
 ### Added
 
 - Introduced the versioned C++11 API for pjson 1.0, including compile-time
@@ -117,7 +119,8 @@ on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and releases follow
 
 - Initial pjson source release.
 
-[Unreleased]: https://github.com/Pico-Developer/pjson/compare/release-0.0.3...HEAD
+[Unreleased]: https://github.com/Pico-Developer/pjson/compare/1.0.0...HEAD
+[1.0.0]: https://github.com/Pico-Developer/pjson/compare/release-0.0.3...1.0.0
 [0.0.3]: https://github.com/Pico-Developer/pjson/compare/release-0.0.2...release-0.0.3
 [0.0.2]: https://github.com/Pico-Developer/pjson/compare/release-0.0.1...release-0.0.2
 [0.0.1]: https://github.com/Pico-Developer/pjson/releases/tag/release-0.0.1
diff --git a/README.md b/README.md
index e720c66..35bb6aa 100644
--- a/README.md
+++ b/README.md
@@ -8,8 +8,7 @@
   `obj["key"][i] = value` style API.
 - Licensed under Apache-2.0;
 - Current source version: **1.0.0** (`pjson::getVersion()` / the
-  `PJSON_VERSION` macro). This version remains unreleased until the
-  `release-1.0.0` tag is published.
+  `PJSON_VERSION` macro).
 
 ---
 
diff --git a/RELEASING.md b/RELEASING.md
index b36c795..9ca22ab 100644
--- a/RELEASING.md
+++ b/RELEASING.md
@@ -4,7 +4,7 @@
 # Release Process
 
 This checklist is for project maintainers. Releases use Semantic Versioning and
-the `release-MAJOR.MINOR.PATCH` tag convention described in
+the `MAJOR.MINOR.PATCH` tag convention described in
 [`VERSIONING.md`](VERSIONING.md).
 
 ## 1. Prepare the release
@@ -146,8 +146,8 @@ out, create an annotated tag. Sign it when the maintainer has a configured,
 project-recognized signing key.
 
 ```sh
-git tag -a release-X.Y.Z -m "pjson X.Y.Z"
-git push origin release-X.Y.Z
+git tag -a X.Y.Z -m "pjson X.Y.Z"
+git push origin X.Y.Z
 ```
 
 Create a GitHub release from that exact tag. Use `pjson X.Y.Z` as the title and
diff --git a/SECURITY.md b/SECURITY.md
index d329859..9eba85f 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -5,14 +5,12 @@
 
 ## Supported versions
 
-Once 1.0.0 is published, pjson intends to provide security fixes for the current
-stable release line. The `1.0.0` source is currently under development, so there
-is no supported stable line until `release-1.0.0` is published. Reports against
-`main` are welcome and fixes are released as soon as practical.
+pjson provides security fixes for the current stable release line. Reports
+against `main` are also welcome and fixes are released as soon as practical.
 
 | Version | Supported |
 | --- | --- |
-| `main` / 1.0.0 development | Pre-release reports accepted |
+| 1.0.x | Yes |
 | 0.0.x | No |
 
 Users of an unsupported version should upgrade before reporting a problem that
diff --git a/VERSIONING.md b/VERSIONING.md
index 0da0e62..a31c961 100644
--- a/VERSIONING.md
+++ b/VERSIONING.md
@@ -4,9 +4,8 @@
 # Versioning Policy
 
 pjson uses [Semantic Versioning 2.0.0](https://semver.org/spec/v2.0.0.html). The
-current source/development version is **1.0.0**, which remains unreleased until
-the `release-1.0.0` tag is published. The latest published tag is `release-0.0.3`;
-historical `0.0.x` releases predate this stability policy.
+current stable version is **1.0.0**. Historical `0.0.x` releases used a
+`release-` tag prefix and predate this stability policy.
 
 ## Version meaning
 
@@ -60,11 +59,11 @@ is a release-blocking defect.
 
 ## Tags and pre-releases
 
-Release tags follow the repository's established
-`release-MAJOR.MINOR.PATCH` form, for example `release-1.0.0`. Pre-release
-identifiers use Semantic Versioning syntax, for example
-`release-1.1.0-rc.1`. Published tags are immutable; a correction is released
-under a new version rather than moving an existing tag.
+Release tags use the plain Semantic Versioning `MAJOR.MINOR.PATCH` form, for
+example `1.0.0`. Pre-release identifiers use Semantic Versioning syntax, for
+example `1.1.0-rc.1`. Historical `0.0.x` tags retain their original `release-`
+prefix. Published tags are immutable; a correction is released under a new
+version rather than moving an existing tag.
 
 Development happens on `main`. Until a release tag is published, its changes
 remain under the `Unreleased` heading in `CHANGELOG.md`.