bump to 0.4.21, changelog

CHANGELOG.md

@@ -2,6 +2,11 @@
 
 Full release notes with details on each version: [GitHub Releases](https://github.com/safishamsi/graphify/releases)
 
+## 0.4.21 (2026-04-17)
+
+- Fix: `graphify cluster-only` crashed with `KeyError: 'total_files'` in `report.py` — cluster-only skips detection so the stats dict was empty; now passes a `warning` key so the report skips the file-stats section (#422)
+- Fix: `/graphify --update` dropped all existing graph nodes — the merge block built a correct in-memory `G_existing` but never wrote it back to `.graphify_extract.json`, so Step 4 rebuilt from the new-extraction-only file; merged result is now serialized back before Step 4 runs (#423)
+
 ## 0.4.20 (2026-04-17)
 
 - Fix: JS/MJS `imports_from` edges were silently dropped for files that use `../subdir/file.mjs` style imports — `Path.parent / raw` left `..` segments unnormalized, so the generated target ID didn't match the actual file node ID. Fixed with `os.path.normpath` (#414)

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "graphifyy"
-version = "0.4.20"
+version = "0.4.21"
 description = "AI coding assistant skill (Claude Code, Codex, OpenCode, Cursor, Gemini CLI, Aider, OpenClaw, Factory Droid, Trae, Hermes, Kiro, Google Antigravity) - turn any folder of code, docs, papers, images, or videos into a queryable knowledge graph"
 readme = "README.md"
 license = { file = "LICENSE" }