Week 17 · April 20–24, 2026 changedwhats-new/2026-w17
Nearest release: v2.1.285, published under an hour after upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
Upstream edited this page at 29 Sep 2026 16:35 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 22 Oct 2026 18:07 UTC.
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33> /ultrareview opens as a research preview, automatic session recaps when you return to a terminal, custom color themes you can build and ship in plugins, and a redesigned Claude Code on the web.
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5Releases [v2.1.114 → v2.1.119](/docs/en/changelog#2-1-114)
5Releases [v2.1.114 → v2.1.119](/docs/en/changelog.md#2-1-114)
664 features · April 20–24
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88/ultrareview
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2424> /ultrareview 1234
2525```
2626
27[Ultrareview guide](/docs/en/ultrareview)
27[Ultrareview guide](/docs/en/ultrareview.md)
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2929Session recap
3030CLI
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3939> /recap
4040```
4141
42[Interactive mode: session recap](/docs/en/interactive-mode#session-recap)
42[Interactive mode: session recap](/docs/en/interactive-mode.md#session-recap)
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4444Custom themes
4545v2.1.118
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5252> /theme
5353```
5454
55[Terminal config: create a custom theme](/docs/en/terminal-config#create-a-custom-theme)
55[Terminal config: create a custom theme](/docs/en/terminal-config.md#create-a-custom-theme)
5656
5757Claude Code on the web
5858web
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64[Claude Code on the web](/docs/en/claude-code-on-the-web)
64[Claude Code on the web](/docs/en/claude-code-on-the-web.md)
6565
6666Other wins
6767
68[Vim visual mode](/docs/en/interactive-mode#vim-editor-mode): press `v` for character selection or `V` for line selection in the prompt input, with operators and visual feedbackHooks can now call MCP tools directly via [`type: "mcp_tool"`](/docs/en/hooks#mcp-tool-hook-fields), so a hook can hit an already-connected server without spawning a process`/cost` and `/stats` are merged into [`/usage`](/docs/en/commands); the old names still work as typing shortcuts that open the relevant tab`/config` changes (theme, editor mode, verbose, and similar) now persist to `~/.claude/settings.json` and follow the same project/local/policy precedence as other [settings](/docs/en/settings)[Forked subagents](/docs/en/sub-agents#fork-the-current-conversation) can be enabled on external builds with `CLAUDE_CODE_FORK_SUBAGENT=1`: a fork inherits your full conversation context instead of starting freshDefault [effort level](/docs/en/model-config#adjust-effort-level) for Pro and Max subscribers on Opus 4.6 and Sonnet 4.6 is now `high` (was `medium`)Native macOS and Linux builds replace the `Glob` and `Grep` tools with embedded `bfs` and `ugrep` available through Bash, for faster searches without a separate tool round-trip`--from-pr` now accepts GitLab merge request, Bitbucket pull request, and GitHub Enterprise PR URLs in addition to github.comAuto mode: include `"$defaults"` in [`autoMode.allow`, `soft_deny`, or `environment`](/docs/en/auto-mode-config) to add custom rules alongside the built-in list instead of replacing itNew [`claude plugin tag`](/docs/en/plugins/dependencies#tag-plugin-releases-for-version-resolution) command creates release git tags for plugins with version validationOpus 4.7 sessions now compute against the model's native 1M context window, fixing inflated `/context` percentages and premature autocompaction`/resume` on large sessions is up to 67% faster and now offers to summarize stale, large sessions before re-reading them
68[Vim visual mode](/docs/en/interactive-mode.md#vim-editor-mode): press `v` for character selection or `V` for line selection in the prompt input, with operators and visual feedbackHooks can now call MCP tools directly via [`type: "mcp_tool"`](/docs/en/hooks#mcp-tool-hook-fields), so a hook can hit an already-connected server without spawning a process`/cost` and `/stats` are merged into [`/usage`](/docs/en/commands); the old names still work as typing shortcuts that open the relevant tab`/config` changes (theme, editor mode, verbose, and similar) now persist to `~/.claude/settings.json` and follow the same project/local/policy precedence as other [settings](/docs/en/settings.md)[Forked subagents](/docs/en/sub-agents.md#fork-the-current-conversation) can be enabled on external builds with `CLAUDE_CODE_FORK_SUBAGENT=1`: a fork inherits your full conversation context instead of starting freshDefault [effort level](/docs/en/model-config.md#adjust-effort-level) for Pro and Max subscribers on Opus 4.6 and Sonnet 4.6 is now `high` (was `medium`)Native macOS and Linux builds replace the `Glob` and `Grep` tools with embedded `bfs` and `ugrep` available through Bash, for faster searches without a separate tool round-trip`--from-pr` now accepts GitLab merge request, Bitbucket pull request, and GitHub Enterprise PR URLs in addition to github.comAuto mode: include `"$defaults"` in [`autoMode.allow`, `soft_deny`, or `environment`](/docs/en/auto-mode-config) to add custom rules alongside the built-in list instead of replacing itNew [`claude plugin tag`](/docs/en/plugins/dependencies#tag-plugin-releases-for-version-resolution) command creates release git tags for plugins with version validationOpus 4.7 sessions now compute against the model's native 1M context window, fixing inflated `/context` percentages and premature autocompaction`/resume` on large sessions is up to 67% faster and now offers to summarize stale, large sessions before re-reading them
6969
70[Full changelog for v2.1.114–v2.1.119 →](/docs/en/changelog#2-1-114)
70[Full changelog for v2.1.114–v2.1.119 →](/docs/en/changelog.md#2-1-114)
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