An entry is only as true as the day it was written.
Flags move on the server after a release ships. Anthropic's own notes land days later and their documentation later still. Sometimes an entry turns out to be wrong and gets corrected by hand. All of that is recorded against the entry it happened to, and this is the whole of it in the order it happened.
Nothing here replaces an entry. Every line links to the page its release published, still saying what that release said, because a correction is added and dated rather than swapped in.
| When | Entry | What happened |
|---|---|---|
v2.1.301rows |
Documentation arrivedA small documentation edit on Deploy Claude Desktop on 3P with the Claude API touched a line naming rows after this was published.
the line in the docs| <span id="inferenceanthropicapikey" />Claude API key<br />`inferenceAnthropicApiKey` | `string` | MDM + Bootstrap<br />Added in 1.8089.0 | — | Leave blank to sign in with your browser, or to supply the key via a credential helper. | |
|
v2.1.301rows |
Documentation arrivedA small documentation edit on Deploy Claude Desktop on 3P with the Claude API touched a line naming rows after this was published.
the line in the docs| <span id="inferenceanthropicapikey" />Claude API key<br />`inferenceAnthropicApiKey` | `string` | MDM + Bootstrap<br />Added in 1.8089.0 | — | Leave blank to sign in with your browser, or to supply the key via a credential helper. | |
|
v2.1.299/btw |
Documentation arrivedAnthropic's documentation has since written up /btw, on Changelog.
the line in the docs* Changed `/btw` in local sessions to open a side chat in a pane beside the session, with a tab for each side chat (not yet in third-party deployments). |
|
v2.1.301PreToolUse |
Documentation arrivedA small documentation edit on Hooks reference touched a line naming PreToolUse after this was published.
the line in the docsAn [Agent SDK callback hook](/docs/en/agent-sdk/hooks) on `PreToolUse` that exceeds its timeout blocks the tool call, and Claude receives an error result naming the timeout. |
|
v2.1.301PreToolUse |
Documentation arrivedA small documentation edit on Hooks reference touched a line naming PreToolUse after this was published.
the line in the docsAn [Agent SDK callback hook](/docs/en/agent-sdk/hooks) on `PreToolUse` that exceeds its timeout blocks the tool call, and Claude receives an error result naming the timeout. |
|
v2.1.300PreToolUse |
Documentation arrivedA small documentation edit on Hooks reference touched a line naming PreToolUse after this was published.
the line in the docsAn [Agent SDK callback hook](/docs/en/agent-sdk/hooks) on `PreToolUse` that exceeds its timeout blocks the tool call, and Claude receives an error result naming the timeout. |
|
v2.1.300PreToolUse |
Documentation arrivedA small documentation edit on Hooks reference touched a line naming PreToolUse after this was published.
the line in the docsAn [Agent SDK callback hook](/docs/en/agent-sdk/hooks) on `PreToolUse` that exceeds its timeout blocks the tool call, and Claude receives an error result naming the timeout. |
|
v2.1.299PreToolUse |
Documentation arrivedA small documentation edit on Hooks reference touched a line naming PreToolUse after this was published.
the line in the docsAn [Agent SDK callback hook](/docs/en/agent-sdk/hooks) on `PreToolUse` that exceeds its timeout blocks the tool call, and Claude receives an error result naming the timeout. |
|
v2.1.299PreToolUse |
Documentation arrivedA small documentation edit on Hooks reference touched a line naming PreToolUse after this was published.
the line in the docsAn [Agent SDK callback hook](/docs/en/agent-sdk/hooks) on `PreToolUse` that exceeds its timeout blocks the tool call, and Claude receives an error result naming the timeout. |
|
v2.1.300UserPromptExpansion |
Documentation arrivedAnthropic's documentation has since written up UserPromptExpansion, on Intercept and control agent behavior with hooks.
the line in the docs* `UserPromptSubmit` and [`UserPromptExpansion`](/docs/en/hooks#userpromptexpansion): Claude Code blocks the prompt with a message naming the hook and the timeout, and the session continues. Before v2.1.208, Claude Code ended the query wit… |
|
v2.1.300UserPromptSubmit |
Documentation arrivedAnthropic's documentation has since written up UserPromptSubmit, on Intercept and control agent behavior with hooks.
the line in the docs* `UserPromptSubmit` and [`UserPromptExpansion`](/docs/en/hooks#userpromptexpansion): Claude Code blocks the prompt with a message naming the hook and the timeout, and the session continues. Before v2.1.208, Claude Code ended the query wit… |
|
v2.1.300UserPromptSubmit |
Documentation arrivedAnthropic's documentation has since written up UserPromptSubmit, on Intercept and control agent behavior with hooks.
the line in the docs* `UserPromptSubmit` and [`UserPromptExpansion`](/docs/en/hooks#userpromptexpansion): Claude Code blocks the prompt with a message naming the hook and the timeout, and the session continues. Before v2.1.208, Claude Code ended the query wit… |
|
v2.1.299UserPromptSubmit |
Documentation arrivedAnthropic's documentation has since written up UserPromptSubmit, on Intercept and control agent behavior with hooks.
the line in the docs* `UserPromptSubmit` and [`UserPromptExpansion`](/docs/en/hooks#userpromptexpansion): Claude Code blocks the prompt with a message naming the hook and the timeout, and the session continues. Before v2.1.208, Claude Code ended the query wit… |
|
v2.1.299UserPromptSubmit |
Documentation arrivedAnthropic's documentation has since written up UserPromptSubmit, on Intercept and control agent behavior with hooks.
the line in the docs* `UserPromptSubmit` and [`UserPromptExpansion`](/docs/en/hooks#userpromptexpansion): Claude Code blocks the prompt with a message naming the hook and the timeout, and the session continues. Before v2.1.208, Claude Code ended the query wit… |
|
v2.1.299UserPromptSubmit |
Documentation arrivedAnthropic's documentation has since written up UserPromptSubmit, on Intercept and control agent behavior with hooks.
the line in the docs* `UserPromptSubmit` and [`UserPromptExpansion`](/docs/en/hooks#userpromptexpansion): Claude Code blocks the prompt with a message naming the hook and the timeout, and the session continues. Before v2.1.208, Claude Code ended the query wit… |
|
v2.1.299UserPromptSubmit |
Documentation arrivedAnthropic's documentation has since written up UserPromptSubmit, on Intercept and control agent behavior with hooks.
the line in the docs* `UserPromptSubmit` and [`UserPromptExpansion`](/docs/en/hooks#userpromptexpansion): Claude Code blocks the prompt with a message naming the hook and the timeout, and the session continues. Before v2.1.208, Claude Code ended the query wit… |
|
v2.1.300updatedInput |
Documentation arrivedAnthropic's documentation has since written up updatedInput, on Intercept and control agent behavior with hooks.
the line in the docsThis example intercepts Write tool calls and rewrites the `file_path` argument to prepend `/sandbox`. The callback returns `updatedInput` with the modified path and `permissionDecision: 'allow'` to auto-approve the rewritten operation: |
|
v2.1.300updatedInput |
Documentation arrivedAnthropic's documentation has since written up updatedInput, on Intercept and control agent behavior with hooks.
the line in the docsThis example intercepts Write tool calls and rewrites the `file_path` argument to prepend `/sandbox`. The callback returns `updatedInput` with the modified path and `permissionDecision: 'allow'` to auto-approve the rewritten operation: |
|
v2.1.300PostToolUse |
Documentation arrivedAnthropic's documentation has since written up PostToolUse, on Intercept and control agent behavior with hooks.
the line in the docs| `PostToolUse` | Yes | Yes | Tool execution result | Log file changes to an audit trail | |
|
v2.1.299file_path |
Documentation arrivedAnthropic's documentation has since written up file_path, on Intercept and control agent behavior with hooks.
the line in the docsThe hook denies a Write or Edit call whose `file_path` ends in `/.env`, in any letter case. On Windows, `file_path` uses backslashes, such as `C:\project\.env`, and this hook allows a Write or Edit call to `C:\project\.env`. |
|
v2.1.299file_path |
Documentation arrivedAnthropic's documentation has since written up file_path, on Intercept and control agent behavior with hooks.
the line in the docsThe hook denies a Write or Edit call whose `file_path` ends in `/.env`, in any letter case. On Windows, `file_path` uses backslashes, such as `C:\project\.env`, and this hook allows a Write or Edit call to `C:\project\.env`. |
|
v2.1.301tengu_cheeky_toucan |
Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_cheeky_toucan, read as this account. | |
v2.1.206tengu_umber_kestrel |
Flag reading movedThe flag server now returns off for tengu_umber_kestrel, read as this account. | |
v2.1.239tengu_toasty_breeze |
Flag reading movedThe flag server now returns {"enabled":false,"version":0} for tengu_toasty_breeze, read as this account. | |
v2.1.239tengu_toasty_breeze |
Flag reading movedThe flag server now returns {"enabled":false,"version":0} for tengu_toasty_breeze, read as this account. | |
v2.1.302tengu_sunny_locket |
Flag reading movedThe flag server now returns {"mode":"off"} for tengu_sunny_locket, read as this account. | |
v2.1.300tengu_sunny_locket |
Flag reading movedThe flag server now returns {"mode":"off"} for tengu_sunny_locket, read as this account. | |
v2.1.290tengu_sunny_locket |
Flag reading movedThe flag server now returns {"mode":"off"} for tengu_sunny_locket, read as this account. | |
v2.1.283tengu_sunny_locket |
Flag reading movedThe flag server now returns {"mode":"off"} for tengu_sunny_locket, read as this account. | |
v2.1.283tengu_sunny_locket |
Flag reading movedThe flag server now returns {"mode":"off"} for tengu_sunny_locket, read as this account. | |
v2.1.282tengu_smooth_chipmunk |
Flag reading movedThe flag server now returns off for tengu_smooth_chipmunk, read as this account. | |
v2.1.281tengu_smooth_chipmunk |
Flag reading movedThe flag server now returns off for tengu_smooth_chipmunk, read as this account. | |
v2.1.281tengu_smooth_chipmunk |
Flag reading movedThe flag server now returns off for tengu_smooth_chipmunk, read as this account. | |
v2.1.269tengu_smooth_chipmunk |
Flag reading movedThe flag server now returns off for tengu_smooth_chipmunk, read as this account. | |
v2.1.261tengu_smooth_chipmunk |
Flag reading movedThe flag server now returns off for tengu_smooth_chipmunk, read as this account. | |
v2.1.261tengu_smooth_chipmunk |
Flag reading movedThe flag server now returns off for tengu_smooth_chipmunk, read as this account. | |
v2.1.273tengu_quiet_dolphin |
Flag reading movedThe flag server now returns off for tengu_quiet_dolphin, read as this account. | |
v2.1.248tengu_nifty_lemur |
Flag reading movedThe flag server now returns {"enabled":false,"version":0} for tengu_nifty_lemur, read as this account. | |
v2.1.248tengu_nifty_lemur |
Flag reading movedThe flag server now returns {"enabled":false,"version":0} for tengu_nifty_lemur, read as this account. | |
v2.1.284tengu_lantern_wick_text |
Flag reading movedThe flag server now returns null for tengu_lantern_wick_text, read as this account. | |
v2.1.223tengu_juniper_relay |
Flag reading movedThe flag server now returns off for tengu_juniper_relay, read as this account. | |
v2.1.251tengu_juniper_relay |
Flag reading movedThe flag server now returns off for tengu_juniper_relay, read as this account. | |
v2.1.265tengu_curious_tower_stateless_models |
Flag reading movedThe flag server now returns "fable-5-1, opus-5, opus-4-8" for tengu_curious_tower_stateless_models, read as this account. | |
v2.1.206tengu_umber_kestrel |
Flag reading movedThe flag server now returns on for tengu_umber_kestrel, read as this account. | |
v2.1.239tengu_toasty_breeze |
Flag reading movedThe flag server now returns {"allowanceNote":"{percent} allowance left","budgetExhaustedCopy":"You've used this week's lower-priority allowance","cooloffMinutes":10,"enabled":true,"label":"Continue now at lower priority","noticeLine":"/low-priority to continue now at lower priority · uses your weekly limit","statusLine":"Lower priority until {reset}","version":3,"waitBanner":"Working at lower priority · waiting for capacity"} for tengu_toasty_breeze, read as this account. | |
v2.1.239tengu_toasty_breeze |
Flag reading movedThe flag server now returns {"allowanceNote":"{percent} allowance left","budgetExhaustedCopy":"You've used this week's lower-priority allowance","cooloffMinutes":10,"enabled":true,"label":"Continue now at lower priority","noticeLine":"/low-priority to continue now at lower priority · uses your weekly limit","statusLine":"Lower priority until {reset}","version":3,"waitBanner":"Working at lower priority · waiting for capacity"} for tengu_toasty_breeze, read as this account. | |
v2.1.302tengu_sunny_locket |
Flag reading movedThe flag server now returns {"mode":"compact"} for tengu_sunny_locket, read as this account. | |
v2.1.300tengu_sunny_locket |
Flag reading movedThe flag server now returns {"mode":"compact"} for tengu_sunny_locket, read as this account. | |
v2.1.290tengu_sunny_locket |
Flag reading movedThe flag server now returns {"mode":"compact"} for tengu_sunny_locket, read as this account. | |
v2.1.283tengu_sunny_locket |
Flag reading movedThe flag server now returns {"mode":"compact"} for tengu_sunny_locket, read as this account. |