•Improved error message when microphone captures silence to distinguish from "no speech detected"
•Improved compaction to preserve images in the summarizer request, allowing prompt cache reuse for faster and cheaper compaction
•Improved /rename to work while Claude is processing, instead of being silently queued

Fixed20 changes

•Fixed API 400 errors when using ANTHROPIC_BASE_URL with a third-party gateway — tool search now correctly detects proxy endpoints and disables tool_reference blocks
•Fixed API Error: 400 This model does not support the effort parameter when using custom Bedrock inference profiles or other model identifiers not matching standard Claude naming patterns
•Fixed empty model responses immediately after ToolSearch — the server renders tool schemas with system-prompt-style tags at the prompt tail, which could confuse models into stopping early
•Fixed prompt-cache bust when an MCP server with instructions connects after the first turn
•Fixed Enter inserting a newline instead of submitting when typing over a slow SSH connection
•Fixed clipboard corrupting non-ASCII text (CJK, emoji) on Windows/WSL by using PowerShell Set-Clipboard
•Fixed extra VS Code windows opening at startup on Windows when running from the VS Code integrated terminal
•Fixed voice mode failing on Windows native binary with "native audio module could not be loaded"
•Fixed push-to-talk not activating on session start when voiceEnabled: true was set in settings
•Fixed markdown links containing #NNN references incorrectly pointing to the current repository instead of the linked URL
•Fixed repeated "Model updated to Opus 4.6" notification when a project's .claude/settings.json has a legacy Opus model string pinned
•Fixed plugins showing as inaccurately installed in /plugin
•Fixed plugins showing "not found in marketplace" errors on fresh startup by auto-refreshing after marketplace installation
•Fixed /security-review command failing with unknown option merge-base on older git versions
•Fixed /color command having no way to reset back to the default color — /color default, /color gray, /color reset, and /color none now restore the default
•Fixed a performance regression in the AskUserQuestion preview dialog that re-ran markdown rendering on every keystroke in the notes input
•Fixed feature flags read during early startup never refreshing their disk cache, causing stale values to persist across sessions
•Fixed permissions.defaultMode settings values other than acceptEdits or plan being applied in Claude Code Remote environments — they are now ignored
•Fixed skill listing being re-injected on every --resume (~600 tokens saved per resume)
•Fixed teleport marker not rendering in VS Code teleported sessions

Other6 changes

•Reduced prompt input re-renders during turns by ~74%
•Reduced startup memory by ~426KB for users without custom CA certificates
•Reduced Remote Control /poll rate to once per 10 minutes while connected (was 1–2s), cutting server load ~300×. Reconnection is unaffected — transport loss immediately wakes fast polling.
•[VSCode] Added spark icon in VS Code activity bar that lists all Claude Code sessions, with sessions opening as full editors
•[VSCode] Added full markdown document view for plans in VS Code, with support for adding comments to provide feedback
•[VSCode] Added native MCP server management dialog — use /mcp in the chat panel to enable/disable servers, reconnect, and manage OAuth authentication without switching to the terminal

Improved3 changes

•Improved error message when microphone captures silence to distinguish from "no speech detected"

•Improved compaction to preserve images in the summarizer request, allowing prompt cache reuse for faster and cheaper compaction

•Improved /rename to work while Claude is processing, instead of being silently queued

Fixed20 changes

•Fixed API 400 errors when using ANTHROPIC_BASE_URL with a third-party gateway — tool search now correctly detects proxy endpoints and disables tool_reference blocks

•Fixed API Error: 400 This model does not support the effort parameter when using custom Bedrock inference profiles or other model identifiers not matching standard Claude naming patterns

•Fixed empty model responses immediately after ToolSearch — the server renders tool schemas with system-prompt-style tags at the prompt tail, which could confuse models into stopping early

•Fixed prompt-cache bust when an MCP server with instructions connects after the first turn

•Fixed Enter inserting a newline instead of submitting when typing over a slow SSH connection

•Fixed clipboard corrupting non-ASCII text (CJK, emoji) on Windows/WSL by using PowerShell Set-Clipboard

•Fixed extra VS Code windows opening at startup on Windows when running from the VS Code integrated terminal

•Fixed voice mode failing on Windows native binary with "native audio module could not be loaded"

•Fixed push-to-talk not activating on session start when voiceEnabled: true was set in settings

•Fixed markdown links containing #NNN references incorrectly pointing to the current repository instead of the linked URL

•Fixed repeated "Model updated to Opus 4.6" notification when a project's .claude/settings.json has a legacy Opus model string pinned

•Fixed plugins showing as inaccurately installed in /plugin

•Fixed plugins showing "not found in marketplace" errors on fresh startup by auto-refreshing after marketplace installation

•Fixed /security-review command failing with unknown option merge-base on older git versions

•Fixed /color command having no way to reset back to the default color — /color default, /color gray, /color reset, and /color none now restore the default

•Fixed a performance regression in the AskUserQuestion preview dialog that re-ran markdown rendering on every keystroke in the notes input

•Fixed feature flags read during early startup never refreshing their disk cache, causing stale values to persist across sessions

•Fixed permissions.defaultMode settings values other than acceptEdits or plan being applied in Claude Code Remote environments — they are now ignored

•Fixed skill listing being re-injected on every --resume (~600 tokens saved per resume)

•Fixed teleport marker not rendering in VS Code teleported sessions

Other6 changes

•Reduced prompt input re-renders during turns by ~74%

•Reduced startup memory by ~426KB for users without custom CA certificates

•Reduced Remote Control /poll rate to once per 10 minutes while connected (was 1–2s), cutting server load ~300×. Reconnection is unaffected — transport loss immediately wakes fast polling.

•[VSCode] Added spark icon in VS Code activity bar that lists all Claude Code sessions, with sessions opening as full editors

•[VSCode] Added full markdown document view for plans in VS Code, with support for adding comments to provide feedback

•[VSCode] Added native MCP server management dialog — use /mcp in the chat panel to enable/disable servers, reconnect, and manage OAuth authentication without switching to the terminal

v2.1.70Claude Code Release NotesMar 06, 2026

Changes in Claude Code v2.1.70

Improved3 changes

Fixed20 changes

Other6 changes

v2.1.70Claude Code Release NotesMar 06, 2026

Changes in Claude Code v2.1.70

Improved3 changes

Fixed20 changes

Other6 changes