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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.

Events22,638dated, and never edited afterwards
Newestthe last time anything moved
Flag readings moved17,280a reading is one sample, for one account
Documentation arrived5,248a docs edit touched an entry's names
WhenEntryWhat happened
v2.1.284tengu_violin_strad Flag reading movedThe flag server now returns off for tengu_violin_strad, read as this account.
v2.1.288tengu_violin_overstand Flag reading movedThe flag server now returns on for tengu_violin_overstand, 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.
v2.1.288tengu_twinkling_swan Flag reading movedThe flag server now returns 60000 for tengu_twinkling_swan, read as this account.
v2.1.288tengu_reactive_zephyr Flag reading movedThe flag server now returns off for tengu_reactive_zephyr, read as this account.
v2.1.288tengu_reactive_zephyr Flag reading movedThe flag server now returns off for tengu_reactive_zephyr, read as this account.
v2.1.288tengu_polished_salamander Flag reading movedThe flag server now returns on for tengu_polished_salamander, read as this account.
v2.1.288tengu_twinkling_swan Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_twinkling_swan, read as this account.
v2.1.288tengu_reactive_zephyr Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_reactive_zephyr, read as this account.
v2.1.288tengu_reactive_zephyr Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_reactive_zephyr, read as this account.
v2.1.288tengu_violin_overstand Flag reading movedThe flag server now returns off for tengu_violin_overstand, read as this account.
v2.1.288tengu_violin_finetuner Flag reading movedThe flag server now returns off for tengu_violin_finetuner, 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.
v2.1.246tengu_ticklish_whisper Flag reading movedThe flag server now returns off for tengu_ticklish_whisper, 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.
v2.1.288tengu_polished_salamander Flag reading movedThe flag server now returns off for tengu_polished_salamander, 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.
v2.1.232tengu_lapis_anchor Flag reading movedThe flag server now returns "off" for tengu_lapis_anchor, read as this account.
v2.1.284tengu_lantern_wick_text Flag reading movedThe flag server now returns "Usage limit reached; a short grace allowance remains, then this turn is cut off without warning. Judge what's left: if it's genuinely only a few steps, finish it properly, then stop and say so without extra polishing. Otherwise don't attempt it all: finish the piece in hand and at most two more like it, then stop. The allowance also pays for any subagents you have running: they don't get this message and will keep going, so it's up to you how to handle them. Either way, end by telling the user their usage limit was reached, what's done and what's left." for tengu_lantern_wick_text, 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.
v2.1.288tengu_violin_overstand Flag reading movedThe flag server now returns on for tengu_violin_overstand, 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.
v2.1.206tengu_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.
v2.1.273tengu_quiet_dolphin Flag reading movedThe flag server now returns off for tengu_quiet_dolphin, read as this account.
v2.1.288tengu_polished_salamander Flag reading movedThe flag server now returns on for tengu_polished_salamander, 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.
v2.1.232tengu_lapis_anchor Flag reading movedThe flag server now returns "padded-countdown" for tengu_lapis_anchor, 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.
v2.1.288tengu_quiet_locket Gate removed from the codev2.1.288 removed the tengu_quiet_locket gate from the code while it was still reading on for the account this site reads.
v2.1.288tengu_polished_salamander Gate removed from the codev2.1.288 removed the tengu_polished_salamander gate from the code while it was still reading on for the account this site reads.
v2.1.284/usage Documentation arrivedA small documentation edit on Set a spend limit touched a line naming /usage after this was published.
the line in the docs

| **Team** | **Required, before anything runs.** A Team plan has no usage balance until it's funded, and Claude won't respond in channels until it is. Buy credits at [`claude.ai/admin-settings/usage`](https://claude.ai/admin-settings/usage…

v2.1.284/usage Documentation arrivedA small documentation edit on Set a spend limit touched a line naming /usage after this was published.
the line in the docs

| **Team** | **Required, before anything runs.** A Team plan has no usage balance until it's funded, and Claude won't respond in channels until it is. Buy credits at [`claude.ai/admin-settings/usage`](https://claude.ai/admin-settings/usage…

v2.1.281/usage Documentation arrivedA small documentation edit on Set a spend limit touched a line naming /usage after this was published.
the line in the docs

| **Team** | **Required, before anything runs.** A Team plan has no usage balance until it's funded, and Claude won't respond in channels until it is. Buy credits at [`claude.ai/admin-settings/usage`](https://claude.ai/admin-settings/usage…

v2.1.281/usage Documentation arrivedA small documentation edit on Set a spend limit touched a line naming /usage after this was published.
the line in the docs

| **Team** | **Required, before anything runs.** A Team plan has no usage balance until it's funded, and Claude won't respond in channels until it is. Buy credits at [`claude.ai/admin-settings/usage`](https://claude.ai/admin-settings/usage…

v2.1.223tengu_ccr_stream_event_flush_ms Flag reading movedThe flag server now returns 400 for tengu_ccr_stream_event_flush_ms, read as this account.
v2.1.223tengu_ccr_stream_event_flush_ms Flag reading movedThe flag server now returns 400 for tengu_ccr_stream_event_flush_ms, read as this account.
v2.1.284rate_limits.spend_limit Documentation arrivedAnthropic's documentation has since written up rate_limits.spend_limit, on Claude apps gateway spend limits.
the line in the docs

| A **Spend limit** bar in `/usage` with the percentage of their cap used and when it resets, and a `rate_limits.spend_limit` object in the status line input | v2.1.251 or later | v2.1.225 or later |

v2.1.285/update Documentation arrivedAnthropic's documentation has since written up /update, on workspaces.
the line in the docs

Every organization has a "Default Workspace" that cannot be renamed, archived, or deleted. Like every workspace, it has a `wrkspc_` ID: the API returns it in the [`anthropic-workspace-id` response header](https://platform.claude.com/docs/e…

v2.1.285run_in_background Documentation arrivedAnthropic's documentation has since written up run_in_background, on Hooks reference.
the line in the docs

| `status` | string | `"completed"` | `"completed"` for foreground subagents, `"async_launched"` for background subagents. Subagents run in the background by default, so an Agent call that omits `run_in_background` also produces `"async_la…

v2.1.285run_in_background Documentation arrivedAnthropic's documentation has since written up run_in_background, on Hooks reference.
the line in the docs

| `status` | string | `"completed"` | `"completed"` for foreground subagents, `"async_launched"` for background subagents. Subagents run in the background by default, so an Agent call that omits `run_in_background` also produces `"async_la…

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