docs: sync to Claude Code v2.1.119 (delta from 2026-04-24 plan) (#102)

- Backfill CHANGELOG.md with v2.4.0 entry summarizing the
  v2.1.112 → v2.1.119 sync work
- Refresh SECURITY.md footer (Last Updated April 27, 2026;
  Next Review April 2027)
- Fix model ID in 09-advanced-features/config-examples.json:
  claude-opus-4 → claude-opus-4-7 (3 occurrences) for
  consistency with documented model IDs
- Remove RELEASE_NOTES.md stub that duplicated and contradicted
  CHANGELOG.md

09-advanced-features/config-examples.json

@@ -81,7 +81,7 @@
       "description": "Configuration for production operations with safety checks",
       "config": {
         "general": {
-          "model": "claude-opus-4",
+          "model": "claude-opus-4-7",
           "temperature": 0.1
         },
         "permissions": {
@@ -133,7 +133,7 @@
       "description": "Configuration for security-focused code analysis",
       "config": {
         "general": {
-          "model": "claude-opus-4",
+          "model": "claude-opus-4-7",
           "temperature": 0.2
         },
         "permissions": {
@@ -204,7 +204,7 @@
       "description": "Configuration for major refactoring work",
       "config": {
         "general": {
-          "model": "claude-opus-4",
+          "model": "claude-opus-4-7",
           "temperature": 0.3
         },
         "planning": {

CHANGELOG.md

@@ -1,5 +1,47 @@
 # Changelog
 
+## [v2.4.0] — 2026-04-27
+
+### Synced to Claude Code v2.1.119
+
+Bumps tutorial coverage from Claude Code v2.1.112 → v2.1.119 (April 23, 2026 release).
+v2.1.120 was published April 24 and rolled back due to regressions; clients are
+auto-rolled back to v2.1.119, which remains the stable target.
+
+### Added (English docs)
+
+- Native binary packaging note (v2.1.113) — CLI now ships per-platform native binaries
+- `bfs`/`ugrep` Glob/Grep substitution footnote on native macOS/Linux builds (v2.1.117)
+- `mcp_tool` hook type with example (v2.1.118)
+- `duration_ms` field on PostToolUse / PostToolUseFailure inputs (v2.1.119)
+- `prUrlTemplate` setting (v2.1.119) and expanded `--from-pr` provider list (GitLab, Bitbucket)
+- `cleanupPeriodDays` extended scope (checkpoints + tasks + shell-snapshots + backups, v2.1.117)
+- Plugin marketplace enforcement on every lifecycle event (v2.1.117) and `hostPattern`/`pathPattern` regex (v2.1.119)
+- New env vars: `DISABLE_UPDATES`, `CLAUDE_CODE_HIDE_CWD`, `CLAUDE_CODE_FORK_SUBAGENT`, `OTEL_LOG_TOOL_DETAILS`, `ENABLE_TOOL_SEARCH` Vertex opt-in
+- New slash commands: `/btw`, `/theme` with custom themes
+- `/usage` canonical command (merges `/cost` + `/stats`, v2.1.118)
+- Forked subagents (`CLAUDE_CODE_FORK_SUBAGENT=1`, v2.1.117)
+- Auto mode `"$defaults"` token (v2.1.118)
+- `wslInheritsWindowsSettings` managed policy (v2.1.118)
+- Vim visual / visual-line modes (v2.1.118)
+- `claude install [version]` and `claude plugin tag` subcommands
+
+### Changed
+
+- Documentation host migrated: `docs.anthropic.com/en/docs/claude-code/*` → `code.claude.com/docs/en/*`
+- Opus 4.7 effort levels: `xhigh` is now the Claude Code default since the 2026-04-16 launch; Opus 4.7 native context window confirmed at 1M (v2.1.117 fixed `/context` miscounting it as 200K)
+- Default effort raised from `medium` to `high` for Pro/Max subscribers on Opus 4.6 / Sonnet 4.6 (v2.1.117)
+- `STYLE_GUIDE.md` Source URL updated from Claude Apps article to `code.claude.com/docs/en/changelog`
+
+### Deprecated (tracked, not removed)
+
+- `includeCoAuthoredBy` setting → use `attribution.commit` / `attribution.pr`
+- `voiceEnabled` setting → use `voice.enabled`
+
+### Notes for translation maintainers
+
+The `vi/`, `zh/`, and `uk/` localized trees are community-maintained and may lag the English source. Contributors syncing translations should diff against the English files updated in this release.
+
 ## v2.1.112 — 2026-04-16
 
 ### Highlights

RELEASE_NOTES.md

@@ -1,11 +0,0 @@
-## v2.2.0 — 2026-03-26
-
-### Bug Fixes
-
-- Remove dead marketplace link failing CI link checks (3fdf0d6)
-- Add `sandboxed` and `pycache` to cSpell dictionary (dc64618)
-
-**Full Changelog**: https://github.com/luongnv89/claude-howto/compare/v2.1.0...v2.1.1
-
----
-**Last Updated**: April 9, 2026

SECURITY.md

@@ -326,8 +326,8 @@ This security policy is reviewed and updated:
 - When the project scope changes
 - Annually as a minimum
 
-**Last Updated**: January 2026
-**Next Review**: January 2027
+**Last Updated**: April 27, 2026
+**Next Review**: April 2027
 
 ---