Follow Discord
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
HomeReleasesWhat has changed since
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.

Events22,549dated, and never edited afterwards
Newestthe last time anything moved
Flag readings moved17,196a reading is one sample, for one account
Documentation arrived5,243a docs edit touched an entry's names
WhenEntryWhat happened
v2.1.299tengu_glowing_lark Flag reading movedThe flag server now returns on for tengu_glowing_lark, read as this account.
v2.1.265tengu_curious_tower_stateless_models Flag reading movedThe flag server now returns "" for tengu_curious_tower_stateless_models, read as this account.
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.
v2.1.282tengu_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.
v2.1.217tengu_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.
v2.1.299tengu_glowing_lark Flag reading movedThe flag server now returns off for tengu_glowing_lark, read as this account.
v2.1.299tengu_glowing_lark Flag reading movedThe flag server now returns off for tengu_glowing_lark, 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.
v2.1.314/btw Documentation arrivedAnthropic's documentation has since written up /btw, on Claude Code changelog.
the line in the docs

* \[VSCode] Fixed saved `/btw` side-question history being deleted too early while a settings file has errors
v2.1.314/clear Documentation arrivedAnthropic's documentation has since written up /clear, on Claude Code changelog.
the line in the docs

* Fixed a rare case where resuming a conversation did not restore its plan, when `/clear` or `/resume` had been run while part of that conversation was still being saved
v2.1.312/clear Documentation arrivedAnthropic's documentation has since written up /clear, on Claude Code changelog.
the line in the docs

* Fixed a rare case where resuming a conversation did not restore its plan, when `/clear` or `/resume` had been run while part of that conversation was still being saved
v2.1.311/clear Documentation arrivedAnthropic's documentation has since written up /clear, on Claude Code changelog.
the line in the docs

* Fixed a rare case where resuming a conversation did not restore its plan, when `/clear` or `/resume` had been run while part of that conversation was still being saved
v2.1.314/permissions Documentation arrivedAnthropic's documentation has since written up /permissions, on Claude Code changelog.
the line in the docs

* Fixed a managed `autoMode.allow` list without `"$defaults"` getting the built-in exceptions back from a host app's `--settings`, a first rule added in `/permissions`, or `/auto-mode-setup`
v2.1.309--restricted Documentation arrivedAnthropic's documentation has since written up --restricted, on Claude Code changelog.
the line in the docs

* Fixed `--restricted` sessions uploading files from outside the working directories when a Read allow rule covered them
v2.1.314claude auth login Documentation arrivedAnthropic's documentation has since written up claude auth login, on Claude Code changelog.
the line in the docs

* Fixed `claude auth login` refusing to run where managed settings require a Claude apps gateway; in a terminal it now shows the gateway sign-in
v2.1.314availableModels Documentation arrivedAnthropic's documentation has since written up availableModels, on Claude Code changelog.
the line in the docs

* Fixed the Claude apps gateway not checking every model a request names against `availableModels`, `deniedModels` and `models`; a request that names a blocked model now gets a 400 naming the field
v2.1.311SHELL Documentation arrivedAnthropic's documentation has since written up SHELL, on Claude Code changelog.
the line in the docs

* Fixed bash scripts started from the Bash tool stopping after their first command when `SHELLOPTS` is exported
v2.1.311SHELL Documentation arrivedAnthropic's documentation has since written up SHELL, on Claude Code changelog.
the line in the docs

* Fixed bash scripts started from the Bash tool stopping after their first command when `SHELLOPTS` is exported
v2.1.314/ultrareview Documentation arrivedAnthropic's documentation has since written up /ultrareview, on Claude Code changelog.
the line in the docs

* Improved the messages shown when `/ultrareview`, a cloud session or a cloud agent finds no GitHub remote: they now say to create a repository at [https://github.com/new](https://github.com/new), and `/ultrareview` no longer suggests a `g…
v2.1.311/diff Documentation arrivedAnthropic's documentation has since written up /diff, on Claude Code changelog.
the line in the docs

* Improved `/diff` on large repositories: each refresh usually runs one fewer full-repository git command, and refreshes are spaced out when git is slow
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.
Feedback