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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.

Events22,549dated, 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
v2.1.274AGENTS.md Documentation arrivedAnthropic's documentation has since written up AGENTS.md, on Claude Code changelog.
the line in the docs

* Added AGENTS.md support: in a project with no CLAUDE.md, Claude Code reads AGENTS.md instead; change it under "Project instructions" in `/config` (not yet on Bedrock, Vertex or Foundry)
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.
v2.1.238tengu_ethereal_nova Flag reading movedThe flag server now returns off for tengu_ethereal_nova, read as this account.
v2.1.238tengu_ethereal_nova Flag reading movedThe flag server now returns off for tengu_ethereal_nova, read as this account.
v2.1.238tengu_ethereal_nova Flag reading movedThe flag server now returns off for tengu_ethereal_nova, read as this account.
v2.1.229tengu_ethereal_nova Flag reading movedThe flag server now returns off for tengu_ethereal_nova, read as this account.
v2.1.234tengu_ethereal_nova Flag reading movedThe flag server now returns off for tengu_ethereal_nova, read as this account.
v2.1.277tengu_agents_md_mod Flag reading movedThe flag server now returns on for tengu_agents_md_mod, read as this account.
v2.1.274tengu_agents_md_mod Flag reading movedThe flag server now returns on for tengu_agents_md_mod, read as this account.
v2.1.235tengu_account_skills_sync_enabled Flag reading movedThe flag server now returns off for tengu_account_skills_sync_enabled, read as this account.
v2.1.246tengu_account_plugins_sync_enabled Flag reading movedThe flag server now returns off for tengu_account_plugins_sync_enabled, read as this account.
v2.1.269tengu_account_plugins_sync_enabled Flag reading movedThe flag server now returns off for tengu_account_plugins_sync_enabled, read as this account.
v2.1.273design Documentation arrivedA small documentation edit on Share session output as artifacts touched a line naming design after this was published.
the line in the docs

Claude applies a built-in design skill when it builds an artifact, so pages get a deliberate palette, typography, and layout without extra prompting. That skill also looks for an existing design system in your project before choosing its o…
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.
v2.1.246tengu_ticklish_whisper Flag reading movedThe flag server now returns off for tengu_ticklish_whisper, 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.
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.
v2.1.269tengu_lucid_anchor Flag reading movedThe flag server now returns on for tengu_lucid_anchor, read as this account.
v2.1.268tengu_lucid_anchor Flag reading movedThe flag server now returns on for tengu_lucid_anchor, read as this account.
v2.1.232tengu_lapis_anchor Flag reading movedThe flag server now returns "off" for tengu_lapis_anchor, read as this account.
v2.1.223tengu_juniper_relay Flag reading movedThe flag server now returns on for tengu_juniper_relay, read as this account.
v2.1.251tengu_juniper_relay Flag reading movedThe flag server now returns on for tengu_juniper_relay, read as this account.
v2.1.273tengu_ccr_stream_first_flush_ms Flag reading movedThe flag server now returns 100 for tengu_ccr_stream_first_flush_ms, read as this account.
v2.1.273tengu_ccr_stream_first_flush_ms Flag reading movedThe flag server now returns 100 for tengu_ccr_stream_first_flush_ms, read as this account.
v2.1.248tengu_ccr_no_subscriber_flush_ms Flag reading movedThe flag server now returns null 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 null for tengu_ccr_no_subscriber_flush_ms, read as this account.
v2.1.274tengu_agents_md_mod Flag reading movedThe flag server now returns off for tengu_agents_md_mod, read as this account.
v2.1.235tengu_account_skills_sync_enabled Flag reading movedThe flag server now returns on for tengu_account_skills_sync_enabled, read as this account.
v2.1.246tengu_account_plugins_sync_enabled Flag reading movedThe flag server now returns on for tengu_account_plugins_sync_enabled, read as this account.
v2.1.269tengu_account_plugins_sync_enabled Flag reading movedThe flag server now returns on for tengu_account_plugins_sync_enabled, 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.
v2.1.246tengu_ticklish_whisper Flag reading movedThe flag server now returns on for tengu_ticklish_whisper, 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.
v2.1.269tengu_lucid_anchor Flag reading movedThe flag server now returns off for tengu_lucid_anchor, read as this account.
v2.1.268tengu_lucid_anchor Flag reading movedThe flag server now returns off for tengu_lucid_anchor, read as this account.
v2.1.232tengu_lapis_anchor Flag reading movedThe flag server now returns "padded-countdown" for tengu_lapis_anchor, 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.
v2.1.273tengu_ccr_stream_first_flush_ms Flag reading movedThe flag server now returns 20 for tengu_ccr_stream_first_flush_ms, read as this account.
v2.1.273tengu_ccr_stream_first_flush_ms Flag reading movedThe flag server now returns 20 for tengu_ccr_stream_first_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.
v2.1.248tengu_ccr_no_subscriber_flush_ms Flag reading movedThe flag server now returns 2000 for tengu_ccr_no_subscriber_flush_ms, read as this account.
v2.1.274tengu_agents_md_mod Flag reading movedThe flag server now returns on for tengu_agents_md_mod, read as this account.
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