v1.6.3

Added

• Cross-repo impact analysis — @repo MCP routing plus group resources let impact queries span multiple indexed repositories in a group (#794, #984)
• Python scope-based call resolution — registry-primary flip, performance, and generalization work from RFC #909 Ring 3 (#980)
• C# scope-resolution migration — C# now runs on the registry-primary path alongside Python (#934, #1019)
• RFC #909 Ring 1 & Ring 2 scope-resolution infrastructure — the shared foundation for language-agnostic scope resolution:
  • Scope-resolution types and constants, LanguageProvider hook extension (#910, #911, #949, #950)
  • ScopeTree + PositionIndex + makeScopeId (#912, #961)
  • DefIndex / ModuleScopeIndex / QualifiedNameIndex (#913, #958)
  • MethodDispatchIndex materialized view over HeritageMap (#914, #960)
  • resolveTypeRef strict single-return type resolver (#916, #959)
  • SCC-aware finalize with bounded fixpoint (#915, #962)
  • ClassRegistry / MethodRegistry / FieldRegistry + 7-step lookup (#917, #963)
  • Shadow-mode diff + aggregate, parity harness + static dashboard (#918, #923, #951, #972)
  • ScopeExtractor driver with 5-pass CaptureMatch → ParsedFile (#919, #965)
  • ScopeExtractor wired into parse-worker + processor (#920, #969)
  • finalize-orchestrator materializes ScopeResolutionIndexes (#921, #970)
  • Per-language resolveImportTarget adapter (#922, #971)
  • REGISTRY_PRIMARY_<LANG> per-language flag reader (#924, #968)
  • emit-references drains ReferenceIndex to graph edges (#925, #973)
• gitnexus analyze --name <alias> with duplicate-name guard in the repo registry (#955)
• gitnexus remove <target> unindexes a registered repo by name or path (#664, #1003)
• Auto-infer registry name from git remote.origin.url when --name is omitted (#981)
• Sibling-clone drift detection — indexed repos are fingerprinted by remote URL so duplicate registrations are caught before graph divergence (#982)
• Configurable large-file skip threshold — the walker's 512 KB default is now overridable via GITNEXUS_MAX_FILE_SIZE (KB) or gitnexus analyze --max-file-size <kb>. Values are clamped to the 32 MB tree-sitter ceiling, invalid inputs fall back to the default with a one-time warning, and the CLI banner reports the effective post-clamp threshold when an override is active (#991, #1044, #1045)
• GITNEXUS_INDEX_TEST_DIRS opt-in for __tests__ / __mocks__ traversal (#771, #1046)
• analyze embedding preservation — existing embeddings are preserved by default, --force regenerates them, --drop-embeddings opts out entirely (CLI + HTTP API) (#1055)
• Structural embedding chunking with data-driven CHUNKING_RULES dispatch, replacing the flat line-based split (#987)
• PHP HTTP consumer detection for the extractor catalogue (#993)
• Per-phase search timing instrumentation across the query pipeline (#953)
• MCP disambiguation ranking — context / impact candidates are ranked and expose kind / file_path hints (#888)
• Docker images for UI + CLI/server shipped via docker-compose with cosign signing (#967), RC image builds (#978), and GHCR → Docker Hub mirroring (#1029)

Fixed

• Go CALLS edges for receiver methods — worker source IDs now align with the main pipeline, restoring receiver-method call edges (#1043)
• Node 22 DEP0151 warning from tree-sitter-c-sharp import silenced (#1013, #1049)
• FTS index bootstrap tries a local LOAD before INSTALL so offline/air-gapped runs no longer fail on network errors (#726)
• FTS ensure failures are no longer cached and are invalidated on pool teardown (#1006)
• groupImpact local-impact errors now bubble to the caller instead of being swallowed (#1004, #1007)
• Friendly error when a group name is not found, with regression test for #903 (#989)
• bm25 results return FTS-matched symbols instead of an arbitrary LIMIT 3 slice (#806)
• Embedding AST traversal switched from recursion to iterative DFS, fixing stack overflow on deeply nested files (#990)
• React component path detection runs before lowercasing, so mixed-case .jsx/.tsx files are recognised (#260)
• detect-changes ENOBUFS by setting maxBuffer on git / rg execFileSync invocations (#957)
• detect-changes in direct CLI — command was wired to MCP only; now exposed on the CLI as well (#892)
• CLI gitnexus markers — <!-- gitnexus:* --> is only matched at section position, no longer inside code/prose (#1041, #1042)
• opencode.json setup preserves existing comments and config during install (#998)
• Sequential parser logging — skipped languages are now logged instead of silently dropped (#1021)
• cli-e2e fixture isolation from the shared mini-repo, plus stabilised rel-csv-split stream teardown on Windows via expect.poll (#954, #1052)
• Docker — RC build guarded against empty vtag, inputs.tag used to detect workflow_call context, web builder stage now copies gitnexus/package.json, base image switched from alpine to debian (#983, #996, #997, #1014)
• CI — reusable docker.yml now inherits secrets from release-candidate.yml (#1054)

Changed

• setup config I/O unified on mergeJsoncFile across all writers (#1031)
• Docker CI gains a retry wrapper for build-push with visibility and hardened shell

Chore / Dependencies

• Dependency bumps: graphology 0.25.4 → 0.26.0 (#1001), uuid 13 → 14 (#1000), @huggingface/transformers (#1035), @types/node (#1002), @types/uuid (#1016), vitest 4.1.4 → 4.1.5 (#1017), @vitest/coverage-v8 (#1018)
• gitnexus-web dependency bumps: vite 5.4.21 → 6.4.2 → 7.3.2 → 8.0.10 + vitest 4 (#1061, #1062, #1063), lucide-react 0.562.0 → 1.11.0 with local GitHub SVG fallback (#1038), @langchain/anthropic 1.3.10 → 1.3.27 (#1039), @babel/types (#1037)
• gitnexus-shared dependency bumps: typescript (#1034)
• GitHub Actions bumps: actions/setup-node 6.3.0 → 6.4.0 (#1033)
• Documentation: repo-wide DoD.md Definition of Done (#1032), gRPC microservices group guide (#906, #994), group add / group remove README fixes (#1020), CLI docs include --skip-git (#750), README Discord link updated