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Sweep 06 Nov 2026 · 01:32Z Build v2.1.319 537 read Stable v2.1.311 Latest v2.1.319 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.

Events22,554dated, and never edited afterwards
Newestthe last time anything moved
Flag readings moved17,196a reading is one sample, for one account
Documentation arrived5,248a docs edit touched an entry's names
WhenEntryWhat happened
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.
v2.1.282tengu_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.
v2.1.288tengu_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.
v2.1.280tengu_wondrous_acorn Flag reading movedThe flag server now returns {"enabled":true,"min_continues":3} for tengu_wondrous_acorn, read as this account.
v2.1.248tengu_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.
v2.1.274tengu_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.
v2.1.288tengu_violin_finetuner Flag reading movedThe flag server now returns on for tengu_violin_finetuner, 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.
v2.1.257tengu_stellar_drift Flag reading movedThe flag server now returns on for tengu_stellar_drift, 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.
v2.1.233tengu_sorrel_trellis Flag reading movedThe flag server now returns on for tengu_sorrel_trellis, read as this account.
v2.1.233tengu_sorrel_trellis Flag reading movedThe flag server now returns on for tengu_sorrel_trellis, read as this account.
v2.1.233tengu_sorrel_trellis Flag reading movedThe flag server now returns on for tengu_sorrel_trellis, read as this account.
v2.1.227tengu_sorrel_trellis Flag reading movedThe flag server now returns on for tengu_sorrel_trellis, read as this account.
v2.1.221tengu_sorrel_trellis Flag reading movedThe flag server now returns on for tengu_sorrel_trellis, read as this account.
v2.1.221tengu_sorrel_trellis Flag reading movedThe flag server now returns on for tengu_sorrel_trellis, read as this account.
v2.1.246tengu_sorrel_trellis Flag reading movedThe flag server now returns on for tengu_sorrel_trellis, read as this account.
v2.1.238tengu_sorrel_trellis Flag reading movedThe flag server now returns on for tengu_sorrel_trellis, read as this account.
v2.1.236tengu_sorrel_trellis Flag reading movedThe flag server now returns on for tengu_sorrel_trellis, read as this account.
v2.1.282tengu_smooth_chipmunk Flag reading movedThe flag server now returns on for tengu_smooth_chipmunk, read as this account.
v2.1.281tengu_smooth_chipmunk Flag reading movedThe flag server now returns on for tengu_smooth_chipmunk, read as this account.
v2.1.281tengu_smooth_chipmunk Flag reading movedThe flag server now returns on for tengu_smooth_chipmunk, read as this account.
v2.1.269tengu_smooth_chipmunk Flag reading movedThe flag server now returns on for tengu_smooth_chipmunk, read as this account.
v2.1.261tengu_smooth_chipmunk Flag reading movedThe flag server now returns on for tengu_smooth_chipmunk, read as this account.
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