docs(changelog): note P2 distribution channels

Author: elkaix

CHANGELOG.md

@@ -15,6 +15,7 @@ GitHub Releases page; `0.8.0` is the new starting line.
 
 ## Unreleased
 
+- **Broadened distribution channels for releases.** Releases now include best-effort Docker/GHCR, Scoop, Nix, and manual WinGet distribution plumbing with channel-native update markers where the installer format supports them.
 - **Release preparation now uses a version single source of truth.** `scripts/release.py` rewrites derived release files from `pyproject.toml`, verifies version lockstep on every PR, enforces the frozen `pythinker-review==0.1.0` pin, and managed-channel installs now show channel-native update guidance instead of trying to self-update.
 - CI and release workflows now run on Node.js 24-backed GitHub Actions, pin action revisions to immutable commits, and preflight optional website/tap GitHub App credentials with clear errors or notices instead of opaque token failures.
 - Release pipeline: migrate the pythinker-home website-sync dispatch to the org-owned `pythinker-release-bot` GitHub App and fail loud on an empty token; retire the dead pythinker-core API-docs gh-pages publish step; add exponential backoff to the native install scripts and fix the Windows installer's release-pagination cliff.