chore: document v1.0.0 release

Author: CasperKristiansson

CHANGELOG.md

@@ -6,21 +6,17 @@ The project follows [Semantic Versioning](https://semver.org/) and adheres to th
 
 ## [Unreleased]
 
-### Added
+- Nothing yet.
 
-- GitHub Action scaffold with TypeScript build, lint, test, and bundling pipelines.
-- Metadata inputs for `track`, `include_prerelease`, `paths`, `automerge`, `dry_run`,
-  and optional external PR support.
-- Version discovery modules covering CPython tag fetchers, python.org fallback,
-  runner availability checks, track alignment, pre-release guard, and idempotence.
-- Repo scanning engine with glob discovery, pattern matchers, dry-run summaries,
-  targeted rewrite logic, and patch computation.
-- Git automation utilities for branch creation, commits, and duplicate-safe pull
-  requests via Octokit.
-- Initial README, security, contributing, and roadmap documentation optimized for
-  SEO and onboarding.
+## [1.0.0] - 2025-02-14
 
-### Planned
+### Added
 
-- First tagged release (`v0.x`) once end-to-end automation is validated in sandbox repositories.
-- Automated changelog updates during release workflows.
+- First official, production-ready release of the CPython Patch PR Action.
+- Comprehensive repository scanner covering GitHub workflows, Dockerfiles, `.python-version`, `.tool-versions`, `runtime.txt`, `pyproject.toml`, `Pipfile`, Conda `environment.yml`, `tox.ini`, and more.
+- Rewrite engine that computes minimal diffs, preserves suffixes (e.g. `-slim`), supports dry-run previews, and ensures idempotent reruns.
+- Version resolution pipeline combining GitHub tag discovery, python.org fallback, runner availability verification, track alignment, and configurable pre-release guard.
+- Git automation that creates or reuses `chore/bump-python-<track>` branches, commits file updates, and opens or updates pull requests with detailed bodies and rollback instructions.
+- Security keyword gating that inspects CPython release notes before applying upgrades, with offline snapshot support for air-gapped environments.
+- Outputs for downstream automation, including `files_changed`, `new_version`, `skipped_reason`, and the `change_matrix` JSON for CI matrix fan-out.
+- Cross-platform compatibility through normalized path handling and Windows coverage in the continuous integration workflow.

CONTRIBUTING.md

@@ -21,4 +21,4 @@ We will adopt TypeScript and follow the formatting enforced by Prettier and ESLi
 
 ## Documentation
 
-Update relevant documentation (README, docs/) when you introduce user-facing changes or new configuration options.
+Update relevant documentation (e.g. the README) when you introduce user-facing changes or new configuration options.

README.md

@@ -2,8 +2,6 @@
 
 CPython Patch PR Action is a GitHub Action that automatically scans your repository for pinned CPython patch versions (e.g. `3.12.4`) and opens an evergreen pull request whenever a new patch release is available. It keeps Dockerfiles, GitHub workflows, `.python-version`, `pyproject.toml`, `runtime.txt`, `Pipfile`, Conda environment files, and more aligned with the latest stable runtime—helping teams maintain secure, up-to-date Python environments without custom automation.
 
-> **Status:** Active development. Version discovery, rewriting, dry-run summaries, branch/PR automation, and guardrails are already implemented. Follow `docs/tasks.md` for the remaining milestones.
-
 ---
 
 ## Quick start
@@ -243,7 +241,7 @@ Pre-releases are ignored unless you set `include_prerelease: true`. The guard pr
 The action is laser-focused on CPython patch updates to stay predictable, fast, and audit-friendly.
 
 **How do I see progress?**  
-Follow `docs/tasks.md`. Each numbered task explains the feature, tooling, and verification steps completed.
+Check `CHANGELOG.md` for release history and upcoming highlights.
 
 ---