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Sweep 06 Nov 2026 · 01:32Z Build v2.1.319 537 read Stable v2.1.311 Latest v2.1.318 Next v2.1.319 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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What has changed since

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.

Events22,542dated, and never edited afterwards
Newestthe last time anything moved
Flag readings moved17,190a reading is one sample, for one account
Documentation arrived5,242a docs edit touched an entry's names
WhenEntryWhat happened
v2.1.311tengu_wobbly_petal Flag reading movedThe flag server now returns {"sdkHosts":true,"sessionModelFamilies":["sonnet","opus","haiku","fable","other"]} for tengu_wobbly_petal, 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.
v2.1.314tengu_sunny_locket Flag reading movedThe flag server now returns {"mode":"off"} for tengu_sunny_locket, read as this account.
v2.1.307tengu_sunny_locket Flag reading movedThe flag server now returns {"mode":"off"} for tengu_sunny_locket, 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.
v2.1.273tengu_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.
v2.1.217tengu_lantern_spool Flag reading movedThe flag server now returns off for tengu_lantern_spool, read as this account.
v2.1.246tengu_lantern_spool Flag reading movedThe flag server now returns off for tengu_lantern_spool, read as this account.
v2.1.292tengu_lantern_spool Flag reading movedThe flag server now returns off for tengu_lantern_spool, read as this account.
v2.1.288tengu_lantern_spool Flag reading movedThe flag server now returns off for tengu_lantern_spool, read as this account.
v2.1.284tengu_lantern_spool Flag reading movedThe flag server now returns off for tengu_lantern_spool, read as this account.
v2.1.282tengu_lantern_spool Flag reading movedThe flag server now returns off for tengu_lantern_spool, 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.
v2.1.248tengu_ccr_no_subscriber_flush_ms Flag reading movedThe flag server now returns 2000 for tengu_ccr_no_subscriber_flush_ms, read as this account.
v2.1.248tengu_ccr_no_subscriber_flush_ms Flag reading movedThe flag server now returns 2000 for tengu_ccr_no_subscriber_flush_ms, read as this account.
v2.1.314/config Documentation arrivedA small documentation edit on Security and data handling touched a line naming /config after this was published.
the line in the docs

> The desktop can also export OpenTelemetry events to a collector you specify: tool name, connector, outcome, duration, and approval status are sent. The export includes prompt text, Claude's responses, and tool inputs and results only for…
v2.1.314permissions.blockReadsOutsideWorkingDirectories Documentation arrivedA small documentation edit on Choose a permission mode touched a line naming permissions.blockReadsOutsideWorkingDirectories after this was published.
the line in the docs

* **No, and block reads outside the working directories from now on**: the read is refused, and Claude Code sets [`permissions.blockReadsOutsideWorkingDirectories`](https://code.claude.com/docs/en/settings-reference#permissions-blockreadso…
v2.1.315blockReadsOutsideWorkingDirectories Documentation arrivedA small documentation edit on Choose a permission mode touched a line naming blockReadsOutsideWorkingDirectories after this was published.
the line in the docs

* **No, and block reads outside the working directories from now on**: the read is refused, and Claude Code sets [`permissions.blockReadsOutsideWorkingDirectories`](https://code.claude.com/docs/en/settings-reference#permissions-blockreadso…
v2.1.315blockReadsOutsideWorkingDirectories Documentation arrivedA small documentation edit on Choose a permission mode touched a line naming blockReadsOutsideWorkingDirectories after this was published.
the line in the docs

* **No, and block reads outside the working directories from now on**: the read is refused, and Claude Code sets [`permissions.blockReadsOutsideWorkingDirectories`](https://code.claude.com/docs/en/settings-reference#permissions-blockreadso…
v2.1.315blockReadsOutsideWorkingDirectories Documentation arrivedA small documentation edit on Choose a permission mode touched a line naming blockReadsOutsideWorkingDirectories after this was published.
the line in the docs

* **No, and block reads outside the working directories from now on**: the read is refused, and Claude Code sets [`permissions.blockReadsOutsideWorkingDirectories`](https://code.claude.com/docs/en/settings-reference#permissions-blockreadso…
v2.1.314blockReadsOutsideWorkingDirectories Documentation arrivedA small documentation edit on Choose a permission mode touched a line naming blockReadsOutsideWorkingDirectories after this was published.
the line in the docs

* **No, and block reads outside the working directories from now on**: the read is refused, and Claude Code sets [`permissions.blockReadsOutsideWorkingDirectories`](https://code.claude.com/docs/en/settings-reference#permissions-blockreadso…
v2.1.305claude -p Documentation arrivedA small documentation edit on CLI reference touched a line naming claude -p after this was published.
the line in the docs

| `--input-format` | Specify input format for print mode (options: `text`, `stream-json`) | `claude -p --input-format stream-json --output-format stream-json --verbose` |
v2.1.314/btw Documentation arrivedA small documentation edit on Create custom subagents touched a line naming /btw after this was published.
the line in the docs

For a question about something already in your conversation, use [`/btw`](https://code.claude.com/docs/en/interactive-mode#side-questions-with-%2Fbtw) instead of a subagent. It has no tool access, and the answer isn't added to history.
v2.1.299/btw Documentation arrivedA small documentation edit on Create custom subagents touched a line naming /btw after this was published.
the line in the docs

For a question about something already in your conversation, use [`/btw`](https://code.claude.com/docs/en/interactive-mode#side-questions-with-%2Fbtw) instead of a subagent. It has no tool access, and the answer isn't added to history.
v2.1.309/rate-limit-options Documentation arrivedAnthropic's documentation has since written up /rate-limit-options, on Interactive mode.
the line in the docs

After three automatic continuations, automatic continue stops and the `Automatic continue stopped after repeated usage-limit hits` notification appears. Run `/rate-limit-options` to choose what to do next. When you send another prompt, or …
v2.1.309failure_reason Documentation arrivedAnthropic's documentation has since written up failure_reason, on Agent SDK reference - TypeScript.
the line in the docs

The `SDKStartupFailureReason` type lists the values `startup_failure_reason` can hold:
v2.1.314sandbox_required_unavailable Documentation arrivedAnthropic's documentation has since written up sandbox_required_unavailable, on Agent SDK reference - TypeScript.
the line in the docs

* A start that Claude Code refuses because [`failIfUnavailable`](#sandboxsettings) is on and the sandbox can't start, with `sandbox_required_unavailable`.
v2.1.311tengu_wobbly_petal Flag reading movedThe flag server now returns {"sdkHosts":false,"sessionModelFamilies":["sonnet","opus","haiku","fable","other"]} for tengu_wobbly_petal, 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.
v2.1.314tengu_sunny_locket Flag reading movedThe flag server now returns {"mode":"compact"} for tengu_sunny_locket, read as this account.
v2.1.307tengu_sunny_locket Flag reading movedThe flag server now returns {"mode":"compact"} for tengu_sunny_locket, 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.
v2.1.283tengu_sunny_locket Flag reading movedThe flag server now returns {"mode":"compact"} for tengu_sunny_locket, read as this account.
v2.1.273tengu_quiet_dolphin Flag reading movedThe flag server now returns on for tengu_quiet_dolphin, read as this account.
v2.1.248tengu_nifty_lemur Flag reading movedThe flag server now returns {"autoContinue":true,"enabled":true,"label":"Reset your session limit now","noticeLine":"/limit-reset to reset your session limit now · uses weekly limit · 1/week","spentLine":"Weekly reset used · available again {date}","successLine":"Session limit reset · next reset available {date} · your weekly limit still applies","unavailableLine":"Couldn't reset your session limit right now · try again in a moment","version":1} for tengu_nifty_lemur, read as this account.
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