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55The weekly dev digest highlights the features most likely to change how you work. Each entry includes runnable code, a short demo, and a link to the full docs. For every bug fix and minor improvement, see the [changelog](/docs/en/changelog).
66
7<Update label="Week 37" description="September 7–11, 2026" tags={["v2.1.263–v2.1.269"]}>
8 **`claude plugin eval`**: run your plugin against a suite of test cases, score the results, and compare against a no-plugin baseline. `claude plugin eval init` drafts the cases and graders for you.
7**Week 37**
98
10 Also this week: pop any **Claude Code Desktop pane** out into its own window and dock it back later; the **`maxEffortLevel`** setting caps the effort level on every provider; and a page that **WebFetch** hasn't finished downloading within five minutes fails instead of hanging.
9**`claude plugin eval`**: run your plugin against a suite of test cases, score the results, and compare against a no-plugin baseline. `claude plugin eval init` drafts the cases and graders for you.
1110
12 [Read the Week 37 digest →](/docs/en/whats-new/2026-w37)
13</Update>
11Also this week: pop any **Claude Code Desktop pane** out into its own window and dock it back later; the **`maxEffortLevel`** setting caps the effort level on every provider; and a page that **WebFetch** hasn't finished downloading within five minutes fails instead of hanging.
1412
15<Update label="Week 36" description="August 31 – September 4, 2026" tags={["v2.1.251–v2.1.261"]}>
16 **Claude Fable 5.1**: available in Claude Code with a 1M-token context window.
13[Read the Week 37 digest →](/docs/en/whats-new/2026-w37)
1714
18 Also this week: on Pro and Max plans, **computer use in the Desktop app** works in the background on macOS while you keep working; in fullscreen rendering, **`/diff`** opens a live panel beside the conversation that refreshes as Claude edits; and **`/skill-doctor`** shows what each of your skills costs in context and how often it gets used.
15**Week 36**
1916
20 [Read the Week 36 digest →](/docs/en/whats-new/2026-w36)
21</Update>
17**Claude Fable 5.1**: available in Claude Code with a 1M-token context window.
2218
23<Update label="Week 35" description="August 24–28, 2026" tags={["v2.1.240–v2.1.250"]}>
24 **Resume terminal sessions in the Desktop app**: type `/resume` in the Claude Code Desktop prompt box to pick up any session you started from the CLI, with the full conversation and context intact.
19Also this week: on Pro and Max plans, **computer use in the Desktop app** works in the background on macOS while you keep working; in fullscreen rendering, **`/diff`** opens a live panel beside the conversation that refreshes as Claude edits; and **`/skill-doctor`** shows what each of your skills costs in context and how often it gets used.
2520
26 Also this week: **Claude-drafted feedback** has Claude write up a feedback report when something goes wrong in a session, which you review and send from `/feedback`; **`--restricted`** starts a session without the command-running tools or your user and project settings, for evaluation harnesses on shared machines; and the **`modelPicker`** setting controls which models the `/model` picker lists.
21[Read the Week 36 digest →](/docs/en/whats-new/2026-w36)
2722
28 [Read the Week 35 digest →](/docs/en/whats-new/2026-w35)
29</Update>
23**Week 35**
3024
31<Update label="Week 34" description="August 17–21, 2026" tags={["v2.1.234–v2.1.239"]}>
32 **`/design`**: a research preview that brings Claude Design's artboard workflow into the CLI and Claude Code Desktop, built on artifacts, so Claude drafts editable artboards for your UI and implements the one you pick.
25**Resume terminal sessions in the Desktop app**: type `/resume` in the Claude Code Desktop prompt box to pick up any session you started from the CLI, with the full conversation and context intact.
3326
34 Also this week: the built-in **Concise output style** makes Claude lead with the result and skip preamble; any machine running `claude remote-control` shows up as a **device card** on your phone so you can start a session on it from the Code tab; and **`ANTHROPIC_DEFAULT_MODEL`** sets the model new sessions start on.
27Also this week: **Claude-drafted feedback** has Claude write up a feedback report when something goes wrong in a session, which you review and send from `/feedback`; **`--restricted`** starts a session without the command-running tools or your user and project settings, for evaluation harnesses on shared machines; and the **`modelPicker`** setting controls which models the `/model` picker lists.
3528
36 [Read the Week 34 digest →](/docs/en/whats-new/2026-w34)
37</Update>
29[Read the Week 35 digest →](/docs/en/whats-new/2026-w35)
3830
39<Update label="Week 33" description="August 10–14, 2026" tags={["v2.1.225–v2.1.233"]}>
40 **Auto-continue after a usage limit on Desktop**: when you hit your session limit in Claude Code Desktop, check **Auto-continue when limits reset** on the limit card and the app retries the interrupted turn once the limit resets.
31**Week 34**
4132
42 Also this week: **fork mode** is on by default in interactive sessions, so Claude can delegate a side task to a subagent that inherits the full conversation; **GitLab** merge request URLs work with `--worktree` and the `claude agents` view, and marketplaces clone bare `gitlab.com` URLs; and typing **`@`** in the prompt mentions another Claude session by name.
33**`/design`**: a research preview that brings Claude Design's artboard workflow into the CLI and Claude Code Desktop, built on artifacts, so Claude drafts editable artboards for your UI and implements the one you pick.
4334
44 [Read the Week 33 digest →](/docs/en/whats-new/2026-w33)
45</Update>
35Also this week: the built-in **Concise output style** makes Claude lead with the result and skip preamble; any machine running `claude remote-control` shows up as a **device card** on your phone so you can start a session on it from the Code tab; and **`ANTHROPIC_DEFAULT_MODEL`** sets the model new sessions start on.
4636
47<Update label="Week 32" description="August 3–7, 2026" tags={["v2.1.220–v2.1.224"]}>
48 **Cross-session messaging**: on macOS and Linux, your Claude Code sessions can now message each other, so Claude passes a finding or a decision from one session to another instead of you re-explaining it.
37[Read the Week 34 digest →](/docs/en/whats-new/2026-w34)
4938
50 Also this week: **self-hosted environments** run Claude Code cloud sessions on infrastructure your organization operates, in public beta on Team and Enterprise plans; **auto mode** becomes the default permission mode for new sessions on Pro, Max, and Team plans starting August 14; and the **VS Code extension** gets Focus view.
39**Week 33**
5140
52 [Read the Week 32 digest →](/docs/en/whats-new/2026-w32)
53</Update>
41**Auto-continue after a usage limit on Desktop**: when you hit your session limit in Claude Code Desktop, check **Auto-continue when limits reset** on the limit card and the app retries the interrupted turn once the limit resets.
5442
55<Update label="Week 30" description="July 20–24, 2026" tags={["v2.1.214–v2.1.219"]}>
56 **Claude Opus 5**: the new default Opus model in Claude Code, with a 1M-token context window and fast mode at \$10/\$50 per MTok.
43Also this week: **fork mode** is on by default in interactive sessions, so Claude can delegate a side task to a subagent that inherits the full conversation; **GitLab** merge request URLs work with `--worktree` and the `claude agents` view, and marketplaces clone bare `gitlab.com` URLs; and typing **`@`** in the prompt mentions another Claude session by name.
5744
58 Also this week: **Claude Code Desktop** opens an iOS Simulator pane in public beta so Claude can run your app and tap through it while you watch; the **Claude Security plugin** runs a multi-agent vulnerability scan of your codebase and turns the findings you pick into patches you apply yourself; and **`/code-review`** runs as a background subagent.
45[Read the Week 33 digest →](/docs/en/whats-new/2026-w33)
5946
60 [Read the Week 30 digest →](/docs/en/whats-new/2026-w30)
61</Update>
47**Week 32**
6248
63<Update label="Week 29" description="July 13–17, 2026" tags={["v2.1.207–v2.1.212"]}>
64 **Artifacts call your MCP connectors**: a published artifact can pull live data and take actions through each viewer's own MCP connectors when they open the page, and this week also adds public sharing links, editor roles on Team and Enterprise, and artifacts created from Claude Tag sessions.
49**Cross-session messaging**: on macOS and Linux, your Claude Code sessions can now message each other, so Claude passes a finding or a decision from one session to another instead of you re-explaining it.
6550
66 Also this week: **screen reader mode** replaces the visual terminal interface with plain, linear text for screen readers such as VoiceOver and NVDA; **`/fork`** copies your conversation into a new background session while you keep working; and **auto mode** no longer needs an opt-in variable on Amazon Bedrock, Google Cloud's Agent Platform, and Microsoft Foundry.
51Also this week: **self-hosted environments** run Claude Code cloud sessions on infrastructure your organization operates, in public beta on Team and Enterprise plans; **auto mode** becomes the default permission mode for new sessions on Pro, Max, and Team plans starting August 14; and the **VS Code extension** gets Focus view.
6752
68 [Read the Week 29 digest →](/docs/en/whats-new/2026-w29)
69</Update>
53[Read the Week 32 digest →](/docs/en/whats-new/2026-w32)
7054
71<Update label="Week 28" description="July 6–10, 2026" tags={["v2.1.202–v2.1.206"]}>
72 **In-app browser on Desktop**: Claude Code on desktop gets a built-in browser, so Claude can pull up docs, designs, or any other site and interact with pages the same way it does with your local dev server previews.
55**Week 30**
7356
74 Also this week: **`/doctor`** is a full setup checkup that diagnoses issues and can fix them, with `/checkup` as its alias; **auto mode** blocks transcript tampering and asks before `rm -rf` on unresolved variables; and **agent view rows** show a colored state word and a classifier-written headline.
57**Claude Opus 5**: the new default Opus model in Claude Code, with a 1M-token context window and fast mode at \$10/\$50 per MTok.
7558
76 [Read the Week 28 digest →](/docs/en/whats-new/2026-w28)
77</Update>
59Also this week: **Claude Code Desktop** opens an iOS Simulator pane in public beta so Claude can run your app and tap through it while you watch; the **Claude Security plugin** runs a multi-agent vulnerability scan of your codebase and turns the findings you pick into patches you apply yourself; and **`/code-review`** runs as a background subagent.
7860
79<Update label="Week 27" description="June 29 – July 3, 2026" tags={["v2.1.195–v2.1.201"]}>
80 **Claude Sonnet 5**: the new default model for Pro, Team Standard, and Enterprise subscription seats, with top-tier coding and tool use at Sonnet pricing, a native 1M-token context window, and adaptive thinking on by default.
61[Read the Week 30 digest →](/docs/en/whats-new/2026-w30)
8162
82 Also this week: **Claude in Chrome** is generally available on all direct Anthropic plans; **subagents run in the background by default** so Claude keeps working while they run; **Claude Desktop on Linux** lands in beta on Ubuntu and Debian; and **`/radio`** tunes into Claude FM lo-fi radio.
63**Week 29**
8364
84 [Read the Week 27 digest →](/docs/en/whats-new/2026-w27)
85</Update>
65**Artifacts call your MCP connectors**: a published artifact can pull live data and take actions through each viewer's own MCP connectors when they open the page, and this week also adds public sharing links, editor roles on Team and Enterprise, and artifacts created from Claude Tag sessions.
8666
87<Update label="Week 26" description="June 22–26, 2026" tags={["v2.1.185–v2.1.193"]}>
88 **`claude mcp login`**: authenticate a configured MCP server from your shell instead of the interactive `/mcp` menu, and clear its stored credentials later with `claude mcp logout`.
67Also this week: **screen reader mode** replaces the visual terminal interface with plain, linear text for screen readers such as VoiceOver and NVDA; **`/fork`** copies your conversation into a new background session while you keep working; and **auto mode** no longer needs an opt-in variable on Amazon Bedrock, Google Cloud's Agent Platform, and Microsoft Foundry.
8968
90 Also this week: **shell mode responds to command output** (`! npm test` gets an explanation without a second prompt); **`/rewind`** can resume a conversation from before `/clear` was run; and **background subagents** now surface permission prompts in the main session instead of auto-denying.
69[Read the Week 29 digest →](/docs/en/whats-new/2026-w29)
9170
92 [Read the Week 26 digest →](/docs/en/whats-new/2026-w26)
93</Update>
71**Week 28**
9472
95<Update label="Week 25" description="June 15–19, 2026" tags={["v2.1.178–v2.1.183"]}>
96 **Artifacts**: turn a session's output into a live, shareable page on claude.ai that updates in place as the session works, now in beta on Team and Enterprise plans.
73**In-app browser on Desktop**: Claude Code on desktop gets a built-in browser, so Claude can pull up docs, designs, or any other site and interact with pages the same way it does with your local dev server previews.
9774
98 Also this week: **deny and ask rules match tool parameters** with `Tool(param:value)`, for example `Agent(model:opus)`; **`/config key=value`** sets any setting from the prompt, in `-p` mode, and from Remote Control; and **auto mode blocks destructive git commands** when you didn't ask to discard local work.
75Also this week: **`/doctor`** is a full setup checkup that diagnoses issues and can fix them, with `/checkup` as its alias; **auto mode** blocks transcript tampering and asks before `rm -rf` on unresolved variables; and **agent view rows** show a colored state word and a classifier-written headline.
9976
100 [Read the Week 25 digest →](/docs/en/whats-new/2026-w25)
101</Update>
77[Read the Week 28 digest →](/docs/en/whats-new/2026-w28)
10278
103<Update label="Week 24" description="June 8–12, 2026" tags={["v2.1.166–v2.1.176"]}>
104 **`/cd`**: move the current session to a new working directory mid-conversation without rebuilding the prompt cache.
79**Week 27**
10580
106 Also this week: **sub-agents can spawn their own sub-agents** (background chains are capped at five levels deep); **`--safe-mode`** starts Claude Code with all customizations disabled for troubleshooting; and **`fallbackModel`** configures up to three fallback models tried in order.
81**Claude Sonnet 5**: the new default model for Pro, Team Standard, and Enterprise subscription seats, with top-tier coding and tool use at Sonnet pricing, a native 1M-token context window, and adaptive thinking on by default.
10782
108 [Read the Week 24 digest →](/docs/en/whats-new/2026-w24)
109</Update>
83Also this week: **Claude in Chrome** is generally available on all direct Anthropic plans; **subagents run in the background by default** so Claude keeps working while they run; **Claude Desktop on Linux** lands in beta on Ubuntu and Debian; and **`/radio`** tunes into Claude FM lo-fi radio.
11084
111<Update label="Week 23" description="June 1–5, 2026" tags={["v2.1.158–v2.1.165"]}>
112 **Auto mode on Amazon Bedrock, Google Cloud's Agent Platform, and Microsoft Foundry**: auto mode is now available on third-party providers for Opus 4.7 and Opus 4.8, replacing permission prompts with background safety checks.
85[Read the Week 27 digest →](/docs/en/whats-new/2026-w27)
11386
114 Also this week: **safer automatic edits** prompt before writing files that can run code in `acceptEdits` mode; **`/plugin list`** prints your installed plugins inline; and **version requirements** let managed deployments require an approved Claude Code version range.
87**Week 26**
11588
116 [Read the Week 23 digest →](/docs/en/whats-new/2026-w23)
117</Update>
89**`claude mcp login`**: authenticate a configured MCP server from your shell instead of the interactive `/mcp` menu, and clear its stored credentials later with `claude mcp logout`.
11890
119<Update label="Week 22" description="May 25–29, 2026" tags={["v2.1.150–v2.1.157"]}>
120 **Claude Opus 4.8**: the new default model for Max, Team Premium, Enterprise pay-as-you-go, and Anthropic API accounts, with high effort by default and `/effort xhigh` for the hardest tasks.
91Also this week: **shell mode responds to command output** (`! npm test` gets an explanation without a second prompt); **`/rewind`** can resume a conversation from before `/clear` was run; and **background subagents** now surface permission prompts in the main session instead of auto-denying.
12192
122 Also this week: **dynamic workflows** orchestrate dozens to hundreds of subagents from a script Claude writes; the **security-guidance plugin** reviews Claude's changes for vulnerabilities as it works; and **fast mode** runs on Opus 4.8 at \$10/\$50 per MTok.
93[Read the Week 26 digest →](/docs/en/whats-new/2026-w26)
12394
124 [Read the Week 22 digest →](/docs/en/whats-new/2026-w22)
125</Update>
95**Week 25**
12696
127<Update label="Week 21" description="May 18–22, 2026" tags={["v2.1.143–v2.1.149"]}>
128 **Auto mode on the Pro plan**: auto mode now runs on Pro accounts and supports Sonnet 4.6 alongside Opus, replacing permission prompts with background safety checks.
97**Artifacts**: turn a session's output into a live, shareable page on claude.ai that updates in place as the session works, now in beta on Team and Enterprise plans.
12998
130 Also this week: **`/usage`** breaks down what drives your plan limits by skill, subagent, plugin, and MCP server; the new **`/code-review`** command reports correctness bugs; and **background sessions** appear in `/resume` and stay alive when pinned.
99Also this week: **deny and ask rules match tool parameters** with `Tool(param:value)`, for example `Agent(model:opus)`; **`/config key=value`** sets any setting from the prompt, in `-p` mode, and from Remote Control; and **auto mode blocks destructive git commands** when you didn't ask to discard local work.
131100
132 [Read the Week 21 digest →](/docs/en/whats-new/2026-w21)
133</Update>
101[Read the Week 25 digest →](/docs/en/whats-new/2026-w25)
134102
135<Update label="Week 20" description="May 11–15, 2026" tags={["v2.1.139–v2.1.142"]}>
136 **Agent view**: `claude agents` opens one screen for every Claude Code session, showing what's running, what's blocked on you, and what's done.
103**Week 24**
137104
138 Also this week: **`/goal`** keeps Claude working across turns until a completion condition holds; **fast mode** now runs on Opus 4.7 by default; and the **Rewind menu** can compress earlier context with "Summarize up to here".
105**`/cd`**: move the current session to a new working directory mid-conversation without rebuilding the prompt cache.
139106
140 [Read the Week 20 digest →](/docs/en/whats-new/2026-w20)
141</Update>
107Also this week: **sub-agents can spawn their own sub-agents** (background chains are capped at five levels deep); **`--safe-mode`** starts Claude Code with all customizations disabled for troubleshooting; and **`fallbackModel`** configures up to three fallback models tried in order.
142108
143<Update label="Week 19" description="May 4–8, 2026" tags={["v2.1.128–v2.1.136"]}>
144 **Plugins load from `.zip` archives and URLs**: `--plugin-dir` now accepts `.zip` files, and `--plugin-url` fetches a plugin archive for the current session.
109[Read the Week 24 digest →](/docs/en/whats-new/2026-w24)
145110
146 Also this week: **`worktree.baseRef`** chooses whether new worktrees branch from the remote default or local `HEAD`; **auto mode hard deny rules** block actions unconditionally regardless of allow exceptions; and **hooks see the active effort level** via `effort.level` and `$CLAUDE_EFFORT`.
111**Week 23**
147112
148 [Read the Week 19 digest →](/docs/en/whats-new/2026-w19)
149</Update>
113**Auto mode on Amazon Bedrock, Google Cloud's Agent Platform, and Microsoft Foundry**: auto mode is now available on third-party providers for Opus 4.7 and Opus 4.8, replacing permission prompts with background safety checks.
150114
151<Update label="Week 18" description="April 27 – May 1, 2026" tags={["v2.1.120–v2.1.126"]}>
152 **Windows without Git Bash**: Git for Windows is no longer required, and Claude Code uses PowerShell as the shell tool when Bash is absent.
115Also this week: **safer automatic edits** prompt before writing files that can run code in `acceptEdits` mode; **`/plugin list`** prints your installed plugins inline; and **version requirements** let managed deployments require an approved Claude Code version range.
153116
154 Also this week: **`claude ultrareview`** brings cloud code review to CI and scripts; **`claude project purge`** cleans up local state for a project; and pasting a **PR URL into `/resume`** finds the session that created it.
117[Read the Week 23 digest →](/docs/en/whats-new/2026-w23)
155118
156 [Read the Week 18 digest →](/docs/en/whats-new/2026-w18)
157</Update>
119**Week 22**
158120
159<Update label="Week 17" description="April 20–24, 2026" tags={["v2.1.114–v2.1.119"]}>
160 **`/ultrareview`** opens as a public research preview: a fleet of bug-hunting agents runs in the cloud and findings land back in your CLI or Desktop automatically.
121**Claude Opus 4.8**: the new default model for Max, Team Premium, Enterprise pay-as-you-go, and Anthropic API accounts, with high effort by default and `/effort xhigh` for the hardest tasks.
161122
162 Also this week: **session recap** shows you what happened while a terminal was unfocused; **custom themes** let you build and ship color palettes from `/theme` or a plugin; and **Claude Code on the web** gets a redesign with a new sessions sidebar and drag-and-drop layout.
123Also this week: **dynamic workflows** orchestrate dozens to hundreds of subagents from a script Claude writes; the **security-guidance plugin** reviews Claude's changes for vulnerabilities as it works; and **fast mode** runs on Opus 4.8 at \$10/\$50 per MTok.
163124
164 [Read the Week 17 digest →](/docs/en/whats-new/2026-w17)
165</Update>
125[Read the Week 22 digest →](/docs/en/whats-new/2026-w22)
166126
167<Update label="Week 16" description="April 13–17, 2026" tags={["v2.1.105–v2.1.113"]}>
168 **Claude Opus 4.7** lands as the new default on Max and Team Premium, with a new `xhigh` effort level that's the recommended setting for most coding work and an interactive `/effort` slider to dial it in.
127**Week 21**
169128
170 Also this week: **Routines** on Claude Code on the web fire templated cloud agents from a schedule, GitHub event, or API call; **mobile push notifications** ping your phone when a long task finishes or Claude needs you; `/usage` shows what's driving your limits; and the CLI moves to native binaries.
129**Auto mode on the Pro plan**: auto mode now runs on Pro accounts and supports Sonnet 4.6 alongside Opus, replacing permission prompts with background safety checks.
171130
172 [Read the Week 16 digest →](/docs/en/whats-new/2026-w16)
173</Update>
131Also this week: **`/usage`** breaks down what drives your plan limits by skill, subagent, plugin, and MCP server; the new **`/code-review`** command reports correctness bugs; and **background sessions** appear in `/resume` and stay alive when pinned.
174132
175<Update label="Week 15" description="April 6–10, 2026" tags={["v2.1.92–v2.1.101"]}>
176 **Ultraplan** enters early preview: draft a plan in the cloud from your CLI, review and comment on it in a web editor, then run it remotely or pull it back local. The first run now auto-creates a cloud environment for you.
133[Read the Week 21 digest →](/docs/en/whats-new/2026-w21)
177134
178 Also this week: the **Monitor** tool streams background events into the conversation so Claude can tail logs and react live, `/loop` self-paces when you omit the interval, `/team-onboarding` packages your setup into a replayable guide, and `/autofix-pr` turns on PR auto-fix from your terminal.
135**Week 20**
179136
180 [Read the Week 15 digest →](/docs/en/whats-new/2026-w15)
181</Update>
137**Agent view**: `claude agents` opens one screen for every Claude Code session, showing what's running, what's blocked on you, and what's done.
182138
183<Update label="Week 14" description="March 30 – April 3, 2026" tags={["v2.1.86–v2.1.91"]}>
184 **Computer use** comes to the CLI in research preview: Claude can open native apps, click through UI, and verify changes from your terminal. Best for closing the loop on things only a GUI can verify.
139Also this week: **`/goal`** keeps Claude working across turns until a completion condition holds; **fast mode** now runs on Opus 4.7 by default; and the **Rewind menu** can compress earlier context with "Summarize up to here".
185140
186 Also this week: `/powerup` interactive lessons, flicker-free alt-screen rendering, a per-tool MCP result-size override up to 500K, and plugin executables on the Bash tool's `PATH`.
141[Read the Week 20 digest →](/docs/en/whats-new/2026-w20)
187142
188 [Read the Week 14 digest →](/docs/en/whats-new/2026-w14)
189</Update>
143**Week 19**
190144
191<Update label="Week 13" description="March 23–27, 2026" tags={["v2.1.83–v2.1.85"]}>
192 **Auto mode** lands in research preview: a classifier handles your permission prompts so safe actions run without interruption and risky ones get blocked. The middle ground between approving everything and `--dangerously-skip-permissions`.
145**Plugins load from `.zip` archives and URLs**: `--plugin-dir` now accepts `.zip` files, and `--plugin-url` fetches a plugin archive for the current session.
193146
194 Also this week: computer use in the Desktop app, PR auto-fix on Web, transcript search with `/`, a native PowerShell tool for Windows, and conditional `if` hooks.
147Also this week: **`worktree.baseRef`** chooses whether new worktrees branch from the remote default or local `HEAD`; **auto mode hard deny rules** block actions unconditionally regardless of allow exceptions; and **hooks see the active effort level** via `effort.level` and `$CLAUDE_EFFORT`.
195148
196 [Read the Week 13 digest →](/docs/en/whats-new/2026-w13)
197</Update>
149[Read the Week 19 digest →](/docs/en/whats-new/2026-w19)
150
151**Week 18**
152
153**Windows without Git Bash**: Git for Windows is no longer required, and Claude Code uses PowerShell as the shell tool when Bash is absent.
154
155Also this week: **`claude ultrareview`** brings cloud code review to CI and scripts; **`claude project purge`** cleans up local state for a project; and pasting a **PR URL into `/resume`** finds the session that created it.
156
157[Read the Week 18 digest →](/docs/en/whats-new/2026-w18)
158
159**Week 17**
160
161**`/ultrareview`** opens as a public research preview: a fleet of bug-hunting agents runs in the cloud and findings land back in your CLI or Desktop automatically.
162
163Also this week: **session recap** shows you what happened while a terminal was unfocused; **custom themes** let you build and ship color palettes from `/theme` or a plugin; and **Claude Code on the web** gets a redesign with a new sessions sidebar and drag-and-drop layout.
164
165[Read the Week 17 digest →](/docs/en/whats-new/2026-w17)
166
167**Week 16**
168
169**Claude Opus 4.7** lands as the new default on Max and Team Premium, with a new `xhigh` effort level that's the recommended setting for most coding work and an interactive `/effort` slider to dial it in.
170
171Also this week: **Routines** on Claude Code on the web fire templated cloud agents from a schedule, GitHub event, or API call; **mobile push notifications** ping your phone when a long task finishes or Claude needs you; `/usage` shows what's driving your limits; and the CLI moves to native binaries.
172
173[Read the Week 16 digest →](/docs/en/whats-new/2026-w16)
174
175**Week 15**
176
177**Ultraplan** enters early preview: draft a plan in the cloud from your CLI, review and comment on it in a web editor, then run it remotely or pull it back local. The first run now auto-creates a cloud environment for you.
178
179Also this week: the **Monitor** tool streams background events into the conversation so Claude can tail logs and react live, `/loop` self-paces when you omit the interval, `/team-onboarding` packages your setup into a replayable guide, and `/autofix-pr` turns on PR auto-fix from your terminal.
180
181[Read the Week 15 digest →](/docs/en/whats-new/2026-w15)
182
183**Week 14**
184
185**Computer use** comes to the CLI in research preview: Claude can open native apps, click through UI, and verify changes from your terminal. Best for closing the loop on things only a GUI can verify.
186
187Also this week: `/powerup` interactive lessons, flicker-free alt-screen rendering, a per-tool MCP result-size override up to 500K, and plugin executables on the Bash tool's `PATH`.
188
189[Read the Week 14 digest →](/docs/en/whats-new/2026-w14)
190
191**Week 13**
192
193**Auto mode** lands in research preview: a classifier handles your permission prompts so safe actions run without interruption and risky ones get blocked. The middle ground between approving everything and `--dangerously-skip-permissions`.
194
195Also this week: computer use in the Desktop app, PR auto-fix on Web, transcript search with `/`, a native PowerShell tool for Windows, and conditional `if` hooks.
196
197[Read the Week 13 digest →](/docs/en/whats-new/2026-w13)
198198
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