Fix changelog accuracy issues across v2.1.83-86

- v2.1.86: expand skill description cap entry to include the overall
  listing budget reduction (2% to 1%, 16,000 to 8,000 chars) that
  shipped in the same change
- v2.1.84: correct env var name to _MODEL_SUPPORTED_CAPABILITIES
- v2.1.83/84: remove transcript search entries (feature not yet
  available in the public build)

CHANGELOG.md

@@ -1,5 +1,34 @@
 # Changelog
 
+## 2.1.86
+
+- Added `X-Claude-Code-Session-Id` header to API requests so proxies can aggregate requests by session without parsing the body
+- Added `.jj` and `.sl` to VCS directory exclusion lists so Grep and file autocomplete don't descend into Jujutsu or Sapling metadata
+- Fixed `--resume` failing with "tool_use ids were found without tool_result blocks" on sessions created before v2.1.85
+- Fixed Write/Edit/Read failing on files outside the project root (e.g., `~/.claude/CLAUDE.md`) when conditional skills or rules are configured
+- Fixed unnecessary config disk writes on every skill invocation that could cause performance issues and config corruption on Windows
+- Fixed potential out-of-memory crash when using `/feedback` on very long sessions with large transcript files
+- Fixed `--bare` mode dropping MCP tools in interactive sessions and silently discarding messages enqueued mid-turn
+- Fixed the `c` shortcut copying only ~20 characters of the OAuth login URL instead of the full URL
+- Fixed masked input (e.g., OAuth code paste) leaking the start of the token when wrapping across multiple lines on narrow terminals
+- Fixed official marketplace plugin scripts failing with "Permission denied" on macOS/Linux since v2.1.83
+- Fixed statusline showing another session's model when running multiple Claude Code instances and using `/model` in one of them
+- Fixed scroll not following new messages after wheel scroll or click-to-select at the bottom of a long conversation
+- Fixed `/plugin` uninstall dialog: pressing `n` now correctly uninstalls the plugin while preserving its data directory
+- Fixed a regression where pressing Enter after clicking could leave the transcript blank until the response arrived
+- Fixed `ultrathink` hint lingering after deleting the keyword
+- Fixed memory growth in long sessions from markdown/highlight render caches retaining full content strings
+- Reduced startup event-loop stalls when many claude.ai MCP connectors are configured (macOS keychain cache extended from 5s to 30s)
+- Reduced token overhead when mentioning files with `@` — raw string content no longer JSON-escaped
+- Improved prompt cache hit rate for Bedrock, Vertex, and Foundry users by removing dynamic content from tool descriptions
+- Memory filenames in the "Saved N memories" notice now highlight on hover and open on click
+- Skill descriptions in the `/skills` listing are now capped at 250 characters, and the overall listing budget reduced from 2% to 1% of the context window (fallback 16,000 → 8,000 characters). Set `SLASH_COMMAND_TOOL_CHAR_BUDGET` to override if you see excluded skills in `/context`
+- Changed `/skills` menu to sort alphabetically for easier scanning
+- Auto mode now shows "unavailable for your plan" when disabled by plan restrictions (was "temporarily unavailable")
+- [VSCode] Fixed extension incorrectly showing "Not responding" during long-running operations
+- [VSCode] Fixed extension defaulting Max plan users to Sonnet after the OAuth token refreshes (8 hours after login)
+- Read tool now uses compact line-number format and deduplicates unchanged re-reads, reducing token usage
+
 ## 2.1.85
 
 - Added `CLAUDE_CODE_MCP_SERVER_NAME` and `CLAUDE_CODE_MCP_SERVER_URL` environment variables to MCP `headersHelper` scripts, allowing one helper to serve multiple servers
@@ -36,7 +65,7 @@
 ## 2.1.84
 
 - Added PowerShell tool for Windows as an opt-in preview. Learn more at https://code.claude.com/docs/en/tools-reference#powershell-tool
-- Added `ANTHROPIC_DEFAULT_{OPUS,SONNET,HAIKU}_MODEL_SUPPORTS` env vars to override effort/thinking capability detection for pinned default models for 3p (Bedrock, Vertex, Foundry), and `_MODEL_NAME`/`_DESCRIPTION` to customize the `/model` picker label
+- Added `ANTHROPIC_DEFAULT_{OPUS,SONNET,HAIKU}_MODEL_SUPPORTED_CAPABILITIES` env vars to override effort/thinking capability detection for pinned default models for 3p (Bedrock, Vertex, Foundry), and `_MODEL_NAME`/`_DESCRIPTION` to customize the `/model` picker label
 - Added `CLAUDE_STREAM_IDLE_TIMEOUT_MS` env var to configure the streaming idle watchdog threshold (default 90s)
 - Added `TaskCreated` hook that fires when a task is created via `TaskCreate`
 - Added `WorktreeCreate` hook support for `type: "http"` — return the created worktree path via `hookSpecificOutput.worktreePath` in the response JSON
@@ -54,7 +83,6 @@
 - Fixed up/down arrow keys being unresponsive when a footer item is focused
 - Fixed `Ctrl+U` (kill-to-line-start) being a no-op at line boundaries in multiline input, so repeated `Ctrl+U` now clears across lines
 - Fixed null-unbinding a default chord binding (e.g. `"ctrl+x ctrl+k": null`) still entering chord-wait mode instead of freeing the prefix key
-- Fixed mouse events inserting literal "mouse" text into transcript search input
 - Fixed workflow subagents failing with API 400 when the outer session uses `--json-schema` and the subagent also specifies a schema
 - Fixed missing background color behind certain emoji in user message bubbles on some terminals
 - Fixed the "allow Claude to edit its own settings for this session" permission option not sticking for users with `Edit(.claude)` allow rules
@@ -83,7 +111,6 @@
 - Added `sandbox.failIfUnavailable` setting to exit with an error when sandbox is enabled but cannot start, instead of running unsandboxed
 - Added `disableDeepLinkRegistration` setting to prevent `claude-cli://` protocol handler registration
 - Added `CLAUDE_CODE_SUBPROCESS_ENV_SCRUB=1` to strip Anthropic and cloud provider credentials from subprocess environments (Bash tool, hooks, MCP stdio servers)
-- Added transcript search — press `/` in transcript mode (`Ctrl+O`) to search, `n`/`N` to step through matches
 - Added `Ctrl+X Ctrl+E` as an alias for opening the external editor (readline-native binding; `Ctrl+G` still works)
 - Pasted images now insert an `[Image #N]` chip at the cursor so you can reference them positionally in your prompt
 - Agents can now declare `initialPrompt` in frontmatter to auto-submit a first turn