diff --git a/.github/ISSUE_TEMPLATE/bug_report.yml b/.github/ISSUE_TEMPLATE/bug_report.yml
index 2490aac..889186a 100644
--- a/.github/ISSUE_TEMPLATE/bug_report.yml
+++ b/.github/ISSUE_TEMPLATE/bug_report.yml
@@ -40,7 +40,7 @@ body:
     id: version
     attributes:
       label: ContextForge version
-      placeholder: "0.4.2"
+      placeholder: "0.4.2.post1"
     validations:
       required: true
   - type: input
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index ce3f3cc..54b2d9e 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -4,7 +4,7 @@ on:
   workflow_dispatch:
     inputs:
       tag:
-        description: Existing signed annotated tag to publish (for example v0.4.2)
+        description: Existing signed annotated tag to publish (for example v0.4.2.post1)
         required: true
         type: string
 
@@ -49,7 +49,7 @@ jobs:
         run: |
           case "$TAG" in
             v[0-9]*.[0-9]*.[0-9]*) ;;
-            *) echo "tag must match vX.Y.Z" >&2; exit 1 ;;
+            *) echo "tag must match vX.Y.Z or a PEP 440 post release such as vX.Y.Z.postN" >&2; exit 1 ;;
           esac
           test "$(git cat-file -t "refs/tags/$TAG")" = "tag"
           test "$(git rev-parse "$TAG^{}")" = "$GITHUB_SHA"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d9c1373..7f8db23 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,11 +2,20 @@
 
 All notable changes to this project will be documented in this file.
 
-The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
-and this project follows [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
+Feature releases follow [Semantic Versioning](https://semver.org/spec/v2.0.0.html),
+and Python distribution versions follow PEP 440.
 
 ## [Unreleased]
 
+## [0.4.2.post1] - 2026-08-21
+
+### Fixed
+
+- Made the CLI help regression validation insensitive to ANSI terminal styling
+  so the same documented options are verified consistently on Linux and
+  Windows CI runners.
+
 ## [0.4.2] - 2026-08-21
 
 ### Added
diff --git a/README.md b/README.md
index 2c78936..d363f97 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 <p align="center">
-  <img src="https://raw.githubusercontent.com/waterflane/ContextForge/main/docs/assets/contextforge-banner.png" width="100%" alt="ContextForge — Build bounded, reviewable context for coding agents.">
+  <img src="https://github.com/user-attachments/assets/3060d8ef-6c77-4a50-a51f-10ff671fe4ff" width="100%" alt="ContextForge — Build bounded, reviewable context for coding agents.">
 </p>
 
 <h1 align="center">ContextForge</h1>
@@ -28,10 +28,10 @@ commands.
 </p>
 
 > [!IMPORTANT]
-> ContextForge is pre-alpha software. Version `0.4.2` is the first public-release
-> candidate. Discovery benchmarking is experimental and its results should be
-> reviewed alongside the recorded provider, model, configuration, and source
-> snapshot.
+> ContextForge is pre-alpha software. Version `0.4.2.post1` is the corrected
+> first public-release candidate. Discovery benchmarking is experimental and
+> its results should be reviewed alongside the recorded provider, model,
+> configuration, and source snapshot.
 
 ## Why ContextForge
 
diff --git a/ROADMAP.md b/ROADMAP.md
index 4353776..41ec208 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -55,7 +55,10 @@ This roadmap describes broad milestones only. It does not promise dates.
   fixed source, index, model, and context-window provenance.
 - [x] Add locked distribution builds, clean-install validation, SBOM generation,
   Trusted Publishing workflows, and public contribution/security policies.
-- [ ] Publish the reviewed signed release through TestPyPI and PyPI.
+- [x] Correct ANSI-sensitive CLI help validation for consistent Linux and
+  Windows release CI.
+- [ ] Publish the reviewed signed `v0.4.2.post1` release through TestPyPI and
+  PyPI.
 
 ## Later
 
diff --git a/docs/RELEASE_CHECKLIST.md b/docs/RELEASE_CHECKLIST.md
index 539e817..2c0f5a2 100644
--- a/docs/RELEASE_CHECKLIST.md
+++ b/docs/RELEASE_CHECKLIST.md
@@ -97,7 +97,8 @@ uv run contextforge benchmark discovery 'C:\Repositories' `
 
 - [ ] Merge the reviewed release pull request from `dev` into `main`.
 - [ ] Verify the exact merge commit contains the intended version and changelog.
-- [ ] Create a signed annotated `vX.Y.Z` tag on that exact commit.
+- [ ] Create a signed annotated `vX.Y.Z` tag on that exact commit, or
+      `vX.Y.Z.postN` for a PEP 440 post release.
 - [ ] Push the tag without rewriting earlier tags.
 - [ ] Synchronize `dev` with the released `main`.
 
diff --git a/src/contextforge/_metadata.py b/src/contextforge/_metadata.py
index 5a7dd42..ccef8fd 100644
--- a/src/contextforge/_metadata.py
+++ b/src/contextforge/_metadata.py
@@ -3,4 +3,4 @@
 APP_NAME = "ContextForge"
 APP_SLUG = "contextforge"
 APP_TAGLINE = "Build bounded, reviewable repository context for coding agents."
-__version__ = "0.4.2"
+__version__ = "0.4.2.post1"
diff --git a/tests/test_openai_compatible.py b/tests/test_openai_compatible.py
index 411990a..5aab9ca 100644
--- a/tests/test_openai_compatible.py
+++ b/tests/test_openai_compatible.py
@@ -6,6 +6,7 @@
 from typing import Any, Literal
 
 import pytest
+from click import unstyle
 from pydantic import BaseModel, ConfigDict
 from typer.testing import CliRunner
 
@@ -658,10 +659,11 @@ def test_cli_help_and_provider_selection_include_base_url(tmp_path: Path) -> Non
     )
 
     assert help_result.exit_code == 0
-    assert "--base-url" in help_result.output
-    assert "--request-timeout" in help_result.output
-    assert "--context-window" in help_result.output
-    assert "--max-output-tokens" in help_result.output
+    help_output = unstyle(help_result.output)
+    assert "--base-url" in help_output
+    assert "--request-timeout" in help_output
+    assert "--context-window" in help_output
+    assert "--max-output-tokens" in help_output
     assert selected.exit_code == 1
     assert "OpenAI-compatible base URL must be an HTTP URL" in selected.output