This release introduces emoji shortcode autocomplete in the prompt input, enhancing user experience. Crucial reliability improvements are also included, with new warnings for failing transcript writes or disabled session saving, preventing silent data loss. Major fixes address Windows auto-update failures, memory leaks, and ensure corporate mTLS and proxy settings are correctly applied. Power users benefit from new controls over concurrent subagents and their nesting depth, alongside fixes for budget enforcement for background subagents.
Added3
- Added emoji shortcode autocomplete in the prompt input: type `:heart:` to insert ❤️, or `:hea` for suggestions — disable with the `emojiCompletionEnabled` setting
- Added warnings when transcript writes are failing (e.g. disk full) or when session saving is off due to an inherited environment variable, instead of losing transcripts silently
- Added a cap on concurrently-running subagents (default 20, override with `CLAUDE_CODE_MAX_CONCURRENT_SUBAGENTS`) so one message can't fan out unbounded background agents
Improved1
- Improved footer PR badge links to be clickable hyperlinks even when terminal support can't be detected (e.g. over ssh/tmux); set `FORCE_HYPERLINK=0` to opt out
Changed3
- Changed the login-expiry warning to appear 3 days before expiry instead of 5
- Capped the frontend-design plugin suggestion tip at 3 lifetime impressions instead of repeating indefinitely
- Changed subagents to no longer spawn nested subagents by default; set `CLAUDE_CODE_MAX_SUBAGENT_SPAWN_DEPTH` to allow deeper nesting
Fixed13
- Fixed a memory leak where truncated MCP tool outputs kept the full untruncated result in memory for the rest of the session
- Fixed Windows auto-update failures that could leave `claude.exe` missing; failed updates now restore the preserved executable automatically
- Fixed background session isolation not canonicalizing symlinked working directories, which could let sessions escape their workspace folder
- Fixed auto-compact never triggering for Claude Opus 4.8 on Bedrock and `/compact` failing once over the limit
- Fixed corporate mTLS, TLS-verify, OAuth scope, and proxy settings being ignored in Claude Desktop sessions
- Fixed screen reader mode's startup announcement being cut off by the first prompt render, and the thinking status row re-rendering every few seconds to update elapsed time and token counts
- Fixed managed settings that set `OTEL_EXPORTER_OTLP_ENDPOINT` not governing all signals — lower-scope signal-specific overrides no longer redirect telemetry away from the managed endpoint
- Fixed `--resume`/`--continue` and `/resume` failing with a TypeError when a transcript has a malformed attachment entry
- Fixed Remote Control sessions not showing a pending permission prompt or dialog to viewers that connected after it appeared
- Fixed background shells sometimes becoming impossible to stop after a session is sent to the background (`/background` or `←`) or when the session exits on a heavily loaded machine, most visible on Windows
- Fixed a `CLAUDE.md` or `SKILL.md` paths frontmatter value with many brace groups OOM-killing or stalling the CLI at startup — brace expansion is now budget-bounded
- Fixed the transcript preview sitting flush against the input area when attaching to a starting background session; it now leaves the same one-line gap as the live layout, so the transcript no longer shifts when the session takes over
- Fixed `--max-budget-usd` not stopping background subagents: once the cap is reached, new spawns are denied and running background agents are halted
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