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

@@ -1,9 +1,71 @@
 # 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
+- Added conditional `if` field for hooks using permission rule syntax (e.g., `Bash(git *)`) to filter when they run, reducing process spawning overhead
+- Added timestamp markers in transcripts when scheduled tasks (`/loop`, `CronCreate`) fire
+- Added trailing space after `[Image #N]` placeholder when pasting images
+- Deep link queries (`claude-cli://open?q=…`) now support up to 5,000 characters, with a "scroll to review" warning for long pre-filled prompts
+- MCP OAuth now follows RFC 9728 Protected Resource Metadata discovery to find the authorization server
+- Plugins blocked by organization policy (`managed-settings.json`) can no longer be installed or enabled, and are hidden from marketplace views
+- PreToolUse hooks can now satisfy `AskUserQuestion` by returning `updatedInput` alongside `permissionDecision: "allow"`, enabling headless integrations that collect answers via their own UI
+- `tool_parameters` in OpenTelemetry tool_result events are now gated behind `OTEL_LOG_TOOL_DETAILS=1`
+- Fixed `/compact` failing with "context exceeded" when the conversation has grown too large for the compact request itself to fit
+- Fixed `/plugin enable` and `/plugin disable` failing when a plugin's install location differs from where it's declared in settings
+- Fixed `--worktree` exiting with an error in non-git repositories before the `WorktreeCreate` hook could run
+- Fixed `deniedMcpServers` setting not blocking claude.ai MCP servers
+- Fixed `switch_display` in the computer-use tool returning "not available in this session" on multi-monitor setups
+- Fixed crash when `OTEL_LOGS_EXPORTER`, `OTEL_METRICS_EXPORTER`, or `OTEL_TRACES_EXPORTER` is set to `none`
+- Fixed diff syntax highlighting not working in non-native builds
+- Fixed MCP step-up authorization failing when a refresh token exists — servers requesting elevated scopes via `403 insufficient_scope` now correctly trigger the re-authorization flow
+- Fixed memory leak in remote sessions when a streaming response is interrupted
+- Fixed persistent ECONNRESET errors during edge connection churn by using a fresh TCP connection on retry
+- Fixed prompts getting stuck in the queue after running certain slash commands, with up-arrow unable to retrieve them
+- Fixed Python Agent SDK: `type:'sdk'` MCP servers passed via `--mcp-config` are no longer dropped during startup
+- Fixed raw key sequences appearing in the prompt when running over SSH or in the VS Code integrated terminal
+- Fixed Remote Control session status staying stuck on "Requires Action" after a permission is resolved
+- Fixed shift+enter and meta+enter being intercepted by typeahead suggestions instead of inserting newlines
+- Fixed stale content bleeding through when scrolling up during streaming
+- Fixed terminal left in enhanced keyboard mode after exit in Ghostty, Kitty, WezTerm, and other terminals supporting the Kitty keyboard protocol — Ctrl+C and Ctrl+D now work correctly after quitting
+- Improved @-mention file autocomplete performance on large repositories
+- Improved PowerShell dangerous command detection
+- Improved scroll performance with large transcripts by replacing WASM yoga-layout with a pure TypeScript implementation
+- Reduced UI stutter when compaction triggers on large sessions
+
 ## 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
@@ -21,7 +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
@@ -50,7 +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