docs: update changelog for v1.20.2

CHANGELOG.md

@@ -6,6 +6,20 @@ Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+## [1.20.2] - 2026-02-16
+
+### Fixed
+- Requirements tracking chain now strips bracket syntax (`[REQ-01, REQ-02]` → `REQ-01, REQ-02`) across all agents
+- Verifier cross-references requirement IDs from PLAN frontmatter instead of only grepping REQUIREMENTS.md by phase number
+- Orphaned requirements (mapped to phase in REQUIREMENTS.md but unclaimed by any plan) are detected and flagged
+
+### Changed
+- All `requirements` references across planner, templates, and workflows enforce MUST/REQUIRED/CRITICAL language — no more passive suggestions
+- Plan checker now **fails** (blocking, not warning) when any roadmap requirement is absent from all plans
+- Researcher receives phase-specific requirement IDs and must output a `<phase_requirements>` mapping table
+- Phase requirement IDs extracted from ROADMAP and passed through full chain: researcher → planner → checker → executor → verifier
+- Verification report requirements table expanded with Source Plan, Description, and Evidence columns
+
 ## [1.20.1] - 2026-02-16
 
 ### Fixed
@@ -1279,7 +1293,8 @@ Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 - YOLO mode for autonomous execution
 - Interactive mode with checkpoints
 
-[Unreleased]: https://github.com/glittercowboy/get-shit-done/compare/v1.20.1...HEAD
+[Unreleased]: https://github.com/glittercowboy/get-shit-done/compare/v1.20.2...HEAD
+[1.20.2]: https://github.com/glittercowboy/get-shit-done/releases/tag/v1.20.2
 [1.20.1]: https://github.com/glittercowboy/get-shit-done/releases/tag/v1.20.1
 [1.20.0]: https://github.com/glittercowboy/get-shit-done/releases/tag/v1.20.0
 [1.19.2]: https://github.com/glittercowboy/get-shit-done/releases/tag/v1.19.2