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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
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_steadfast_wren Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_steadfast_wren, read as this account.
v2.1.315tengu_mossy_squid Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_mossy_squid, read as this account.
v2.1.309tengu_mossy_squid Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_mossy_squid, read as this account.
v2.1.300tengu_mellow_hollerith Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_mellow_hollerith, read as this account.
v2.1.274tengu_mellow_hollerith Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_mellow_hollerith, read as this account.
v2.1.311tengu_mellow_heron Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_mellow_heron, read as this account.
v2.1.299tengu_mellow_heron Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_mellow_heron, read as this account.
v2.1.302tengu_iterative_lightning Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_iterative_lightning, read as this account.
v2.1.299tengu_iterative_lightning Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_iterative_lightning, read as this account.
v2.1.315tengu_groovy_ember Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_groovy_ember, read as this account.
v2.1.288tengu_cobalt_plinth_orpine Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_cobalt_plinth_orpine, read as this account.
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.
v2.1.280tengu_wondrous_acorn Flag reading movedThe flag server now returns {"enabled":true,"min_continues":3} for tengu_wondrous_acorn, read as this account.
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.
v2.1.248tengu_wise_star Flag reading movedThe flag server now returns on for tengu_wise_star, read as this account.
v2.1.280tengu_wise_bear_copy Flag reading movedThe flag server now returns {"note_model":"Use your limit reset to reset it now: `clau.de/reset`","note_session":"Use your limit reset to reset it now: `clau.de/reset`","note_weekly":"Use your limit reset to reset it now: `clau.de/reset`","only_if_unused_reset":true} for tengu_wise_bear_copy, read as this account.
v2.1.314tengu_virtual_toast Flag reading movedThe flag server now returns on for tengu_virtual_toast, read as this account.
v2.1.312tengu_virtual_toast Flag reading movedThe flag server now returns on for tengu_virtual_toast, read as this account.
v2.1.310tengu_virtual_toast Flag reading movedThe flag server now returns on for tengu_virtual_toast, read as this account.
v2.1.274tengu_virtual_pancake Flag reading movedThe flag server now returns on for tengu_virtual_pancake, read as this account.
v2.1.274tengu_virtual_pancake Flag reading movedThe flag server now returns on for tengu_virtual_pancake, read as this account.
v2.1.274tengu_virtual_pancake Flag reading movedThe flag server now returns on for tengu_virtual_pancake, read as this account.
v2.1.287tengu_violin_volute Flag reading movedThe flag server now returns on for tengu_violin_volute, read as this account.
v2.1.296tengu_violin_pernambuco Flag reading movedThe flag server now returns on for tengu_violin_pernambuco, read as this account.
v2.1.293tengu_violin_lapping Flag reading movedThe flag server now returns on for tengu_violin_lapping, read as this account.
v2.1.288tengu_violin_finetuner Flag reading movedThe flag server now returns on for tengu_violin_finetuner, read as this account.
v2.1.293tengu_violin_endpin Flag reading movedThe flag server now returns on for tengu_violin_endpin, read as this account.
v2.1.295tengu_violin_camber Flag reading movedThe flag server now returns on for tengu_violin_camber, read as this account.
v2.1.293tengu_violin_arching Flag reading movedThe flag server now returns on for tengu_violin_arching, read as this account.
v2.1.295tengu_violin_adjuster Flag reading movedThe flag server now returns on for tengu_violin_adjuster, read as this account.
v2.1.269tengu_umber_stile Flag reading movedThe flag server now returns on for tengu_umber_stile, read as this account.
v2.1.265tengu_umber_stile Flag reading movedThe flag server now returns on for tengu_umber_stile, read as this account.
v2.1.265tengu_umber_stile Flag reading movedThe flag server now returns on for tengu_umber_stile, read as this account.
v2.1.265tengu_umber_stile Flag reading movedThe flag server now returns on for tengu_umber_stile, read as this account.
v2.1.265tengu_umber_stile Flag reading movedThe flag server now returns on for tengu_umber_stile, 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.
v2.1.261tengu_swift_whistle Flag reading movedThe flag server now returns on for tengu_swift_whistle, read as this account.
v2.1.261tengu_swift_whistle Flag reading movedThe flag server now returns on for tengu_swift_whistle, 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.
v2.1.257tengu_stellar_drift Flag reading movedThe flag server now returns on for tengu_stellar_drift, read as this account.
v2.1.304tengu_steady_mitten Flag reading movedThe flag server now returns on for tengu_steady_mitten, read as this account.
v2.1.187tengu_startup_announcements Flag reading movedThe flag server now returns [{"accentBar":false,"id":"opus-5-5-launch","maxImpressions":3,"priority":0,"requiresModel":"claude-opus-5-5","text":"Get to finished work sooner with Opus 5.5. Switch anytime with `/model`."}] for tengu_startup_announcements, read as this account.
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