docs: prepare release notes for v3.9.3

[carlos-alm]

Summary

• Add CHANGELOG entry for v3.9.3 (all commits since v3.9.2)
• Update ROADMAP version header to 3.9.3
• Update BACKLOG last-updated date
• Restore missing libc fields in package-lock.json for Linux packages (npm 11 strips them)

After merging: create a GitHub Release with tag v3.9.3 → target main → title v3.9.3 → paste the CHANGELOG section → Publish.

Test plan

• CHANGELOG renders correctly on GitHub
• ROADMAP checklist items match actual codebase state
• libc fields present for all 3 Linux entries in package-lock.json

[claude]

Claude finished @carlos-alm's task —— View job

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PR Review Complete

Conducting comprehensive review of v3.9.3 release preparation PR following the 5-phase process:

Todo List

• Phase 1: Root cause analysis - understand what problem this PR solves
• Phase 2: Configuration change detection - check for high-risk changes
• Phase 3: Test integrity - watch for red flags
• Phase 4: Code quality assessment
• Phase 5: Backlog compliance grading
• Final Assessment: Provide rating and recommendation

Phase 1: Root Cause Analysis ✅

Problem Being Solved: Release preparation for v3.9.3 with proper documentation updates and package-lock.json fix
Files Changed:

• CHANGELOG.md: Added v3.9.3 release entry with native engine parity improvements, performance optimizations, and bug fixes
• docs/roadmap/ROADMAP.md: Updated version header from 3.9.2 to 3.9.3
• docs/roadmap/BACKLOG.md: Updated last-updated date to 2026-04-12
• package-lock.json: Restored missing libc fields for 3 Linux platform packages (glibc for arm64/x64-gnu, musl for x64-musl)

Why This Approach: Standard release preparation workflow - npm 11 strips libc fields which are needed for proper platform-specific package resolution on Linux.

Phase 2: Configuration Change Detection ✅

No High-Risk Changes Found: This PR contains only documentation updates and a package-lock.json restoration. No biome rules, test timeouts, build configuration, TypeScript flags, or other configuration changes detected.

Phase 3: Test Integrity ✅

No Test-Related Changes: No test files modified, no assertions weakened, no coverage thresholds lowered. This is purely a release preparation PR with no code changes.

Phase 4: Code Quality Assessment ✅

Documentation Only: Since this PR only touches documentation and package metadata:

• CHANGELOG entry is comprehensive and follows proper semantic versioning format
• Version numbers are consistently updated across all documentation
• package-lock.json change is a legitimate fix for npm 11 compatibility

Phase 5: Backlog Compliance Grading ✅

Root Cause Analysis

Problem Being Solved: Standard v3.9.3 release preparation - updating documentation and fixing npm 11 compatibility issue with missing libc fields
Why This Approach: Follows established release workflow; npm 11 strips libc fields causing Linux platform resolution issues
Risk Assessment: Very low risk - documentation and metadata changes only

Backlog Compliance

• Zero-dep: ✓ — No new runtime dependencies, only restores existing package-lock metadata
• Foundation-aligned: ✓ — Purely maintenance, no principle violations
• Problem-fit: N/A — Release preparation, not a feature
• Breaking: No — Purely additive documentation and metadata fix
• Tier: N/A — Release preparation activity

Critical Concerns

None identified. This is a standard, well-executed release preparation PR.

Final Recommendation

• Rating: ⭐⭐⭐⭐☆ (4/5)
• Action: APPROVE
• Reasoning: Clean release preparation following established conventions. CHANGELOG entry is comprehensive, version numbers are consistently updated, and the package-lock.json fix addresses a real npm 11 compatibility issue. No code changes, configuration relaxation, or test modifications. The only minor dock in rating is that this is routine maintenance rather than exceptional work.

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[greptile-apps]

Greptile Summary

This PR prepares release notes for v3.9.3, adding the CHANGELOG entry (bug fixes, perf improvements, refactors, docs, and chores across PRs #893–#919), bumping the ROADMAP version header and BACKLOG date to 2026-04-12, and restoring three libc fields in package-lock.json that npm 11 strips on npm install.

All changes are documentation and lockfile maintenance — no source code is modified.

Confidence Score: 5/5

Safe to merge — all changes are documentation and lockfile maintenance with no source code impact.

All findings are P2 (style/clarity suggestions). No logic changes, no code changes, no security surface. The libc restoration and CHANGELOG wording note are informational only and don't block the release.

package-lock.json — libc fields will be stripped again on next npm install; worth tracking as a known recurring issue.

Important Files Changed

Filename	Overview
CHANGELOG.md	Adds v3.9.3 entry with accurate PR references across bug fixes, perf, refactors, docs, and chores sections; summary prose and section structure match the existing format.
docs/roadmap/ROADMAP.md	Version header bumped from 3.9.2 → 3.9.3 and date updated to 2026-04-12; straightforward one-line change.
docs/roadmap/BACKLOG.md	Last-updated date bumped from 2026-04-06 to 2026-04-12; no other changes.
package-lock.json	Restores libc fields (glibc/musl) for three Linux optional platform packages stripped by npm 11; fields are correct but will be stripped again on the next npm install.

_{Reviews (2): Last reviewed commit: "fix(deps): restore missing libc fields i..." | Re-trigger Greptile}

[carlos-alm]

Regarding the P1 finding about package.json still at 3.9.2:

This is intentional and handled by the publish workflow. PR #893 (merged 2026-04-07) decoupled version bumps from release notes PRs. The publish.yml workflow independently computes the version from the release tag or workflow_dispatch input and runs npm version during the publish step (line 406). After publishing, it creates a separate PR (release/v{VERSION}) to push the version bump back to main.

commit-and-tag-version is NOT invoked by the publish workflow — it only exists in the local npm run release script — so there is no risk of duplicate CHANGELOG entries.

Summary: No changes needed — the version bump path is clean and the CHANGELOG will not be duplicated.

[carlos-alm]

@greptileai