Claude Code changelog changedchangelog
Nearest release: v2.1.237, published 2 hours before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
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14 Aug 2026
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Recorded edits70to this page, all time
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77Run `claude --version` to check your installed version.
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9<Update label="2.1.237" description="August 20, 2026">
10 * Fixed prompt caching for sessions using an LLM gateway or custom base URL
11 * Added a built-in "Concise" output style: Claude leads with results and skips preamble and narration, while doing the work just as thoroughly. Select it under Output style in /config.
12</Update>
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914<Update label="2.1.236" description="August 19, 2026">
1015 * Added `ANTHROPIC_DEFAULT_MODEL` environment variable: sets the model new sessions start on, while a `/model` pick still overrides it and persists across restarts (unlike `ANTHROPIC_MODEL`)
1116 * Added `notify_when_idle` to cross-session `SendMessage`: ask another Claude Code session on this machine to send one notice when it next goes idle — opt-in, one-shot, no polling (macOS and Linux)
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21622167 * Fixed unauthorized claude.ai MCP connectors showing as "failed" instead of "needs auth", and headless `-p` mode retrying non-transient 4xx connection failures
21632168 * Improved visual consistency in slash command dialogs and `/login`, `/upgrade`, `/extra-usage` dialog spacing
21642169 * Updated the `/tui fullscreen` startup banner to describe additional renderer benefits (lower memory usage, mouse support, auto-copy on select)
2165 * Fixed Bedrock and Vertex 400 errors when `ENABLE_PROMPT_CACHING_1H` is set
2166</Update>
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2168<Update label="2.1.131" description="May 6, 2026">
2169 * Fixed VS Code extension failing to activate on Windows due to a hardcoded build path in the bundled SDK (`createRequire` polyfill bug)
2170 * Fixed Mantle endpoint authentication failing with missing `x-api-key` header
2171</Update>
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2170 * Fixed Bedrock and Vertex 400 errors
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