diff --git a/CHANGELOG.md b/CHANGELOG.md
index 55ab6ac99..ef73cbf4a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -40,6 +40,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 
+- **Phase 3 label validation enforcement — Validation script & workflow** — Pre-creation label validation script (`validate-labels-before-creation.cjs`) enforces canonical label prefixes and one-hot constraint per family. GitHub Actions workflow validates on issue/PR creation, editing, and PR synchronization. Prevents bare labels (e.g., `bug`, `feature`, `urgent`) and enforces required prefixes (e.g., `type:bug`, `priority:critical`). ([PR #1613](https://github.com/lightspeedwp/.github/pull/1613), [#1612](https://github.com/lightspeedwp/.github/issues/1612))
+
+- **Phase 1 critical fixes — broken badges and release process** — Fixed 33 broken documentation badges (workflow status, build badges); fixed release workflow to default to `--dry-run` with explicit `--live` flag requirement; added authorisation gating for release operations. ([PR #1609](https://github.com/lightspeedwp/.github/pull/1609), [#1547](https://github.com/lightspeedwp/.github/issues/1547), [#1548](https://github.com/lightspeedwp/.github/issues/1548), [#1549](https://github.com/lightspeedwp/.github/issues/1549))
+
+- **Address Copilot review feedback on PR #1591** — Fixed broken relative paths in audit report files and adjusted path resolution for portable asset locations. ([PR #1610](https://github.com/lightspeedwp/.github/pull/1610), [#1591](https://github.com/lightspeedwp/.github/issues/1591))
 - **Jest test infrastructure blocker and rollback script improvements** — Fixed critical blocker preventing all 90+ test suites from running. The `rollback.cjs` script had executable code at module load time that called `process.exit(1)` when `ROLLBACK_TARGET_VERSION` environment variable was missing. Wrapped `runMain(main)` in `require.main === module` check to prevent execution during test imports. Refactored module to export `rollbackRelease()`, `parseArgs()`, and `githubApiRequest()` for unit testing. All 1,069 tests now pass. Additional improvements from review feedback: guarded empty/204 response bodies in `githubApiRequest` to prevent `JSON.parse("")` throwing; changed retry predicate to use HTTP status code instead of message text; forced shell rollback now performs all announced deletions (remote tag, GitHub Release, release branch); replaced `process.exit(1)` in catch block with a re-throw so callers and the `runMain` handler control exit status; wired `main()` to call `parseArgs()` so `--version`, `--force`, and `--provider` CLI flags are properly respected. ([PR #1633](https://github.com/lightspeedwp/.github/pull/1633), [#1628](https://github.com/lightspeedwp/.github/issues/1628))
 
 - **Resolve Phase 1 critical issues** — Fixed critical schema path references and unresolved merge conflicts from Phase 1 restructuring that prevented builds and asset discovery. ([PR #1502](https://github.com/lightspeedwp/.github/pull/1502), [#1290](https://github.com/lightspeedwp/.github/issues/1290))
@@ -76,6 +81,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Added
 
+- **Phase 1–3 completion documentation** — Comprehensive project completion report documenting Phase 1 restructuring, Phase 2 label remediation, and Phase 3 validation enforcement. Includes audit findings, 5-phase remediation timeline, and governance architecture. ([PR #1624](https://github.com/lightspeedwp/.github/pull/1624), [Epic #1290](https://github.com/lightspeedwp/.github/issues/1290))
+
+- **Label creation governance in CLAUDE.md and AGENTS.md** — Added mandatory label prefix enforcement rules to organisation-wide governance documents. All labels must use canonical prefixes (type:, status:, priority:, area:, etc.) from `.github/labels.yml` (158 canonical labels). One-hot constraint per family except meta:, comp:, lang: which allow multiples. Prevents bare labels and enforces validation at issue/PR creation time. ([PR #1611](https://github.com/lightspeedwp/.github/pull/1611), [#1592](https://github.com/lightspeedwp/.github/issues/1592))
+
+- **Phase 4 label validation documentation** — Comprehensive documentation package: updated LABELING.md v1.1.0 with ~500 lines on validation rules and error guidance; new LABELING_FAQ.md (~2,500 lines) with 30+ FAQs organised by topic; new LABELING_EXAMPLES.md (~1,000 lines) with 20+ real-world label combinations for issues and PRs. ([PR #1613](https://github.com/lightspeedwp/.github/pull/1613), [#1612](https://github.com/lightspeedwp/.github/issues/1612), [docs/LABELING.md](./docs/LABELING.md), [docs/LABELING_FAQ.md](./docs/LABELING_FAQ.md), [docs/LABELING_EXAMPLES.md](./docs/LABELING_EXAMPLES.md))
 - **Label prefix governance enforcement audit** — Comprehensive audit identifying 100+ label governance violations with structured 5-phase remediation strategy covering governance updates, validation enforcement, pre-creation scripts, documentation, and team training. ([PR #1591](https://github.com/lightspeedwp/.github/pull/1591), [#1592](https://github.com/lightspeedwp/.github/issues/1592))
 
 - **Implement Phase 3 labeling automation for issue triage** — Implemented automated labeling rules and infrastructure for phase 3 of issue triage system with type assignment and status classification. ([PR #1505](https://github.com/lightspeedwp/.github/pull/1505))