Follow Discord
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
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.

Events22,667dated, and never edited afterwards
Newestthe last time anything moved
Flag readings moved17,294a reading is one sample, for one account
Documentation arrived5,263a docs edit touched an entry's names
WhenEntryWhat happened
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.
v2.1.261tengu_smooth_chipmunk Flag reading movedThe flag server now returns on for tengu_smooth_chipmunk, 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.
v2.1.248tengu_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.
v2.1.284tengu_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.
v2.1.265tengu_curious_tower_stateless_models Flag reading movedThe flag server now returns "" for tengu_curious_tower_stateless_models, 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.
v2.1.300tengu_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.
v2.1.223tengu_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.
v2.1.299/env Documentation arrivedA small documentation edit on Connect Claude Code to tools via MCP touched a line naming /env after this was published.
the line in the docs

Descriptions and instructions from some of the MCP servers that Anthropic hosts at `api.anthropic.com` reach Claude in full. To change the limits for the other MCP servers in your session, set [`CLAUDE_CODE_MAX_MCP_DESCRIPTION_LENGTH`](/do…
v2.1.280CLAUDE_CODE_MAX_MCP_DESCRIPTION_LENGTH Documentation arrivedA small documentation edit on Connect Claude Code to tools via MCP touched a line naming CLAUDE_CODE_MAX_MCP_DESCRIPTION_LENGTH after this was published.
the line in the docs

Descriptions and instructions from some of the MCP servers that Anthropic hosts at `api.anthropic.com` reach Claude in full. To change the limits for the other MCP servers in your session, set [`CLAUDE_CODE_MAX_MCP_DESCRIPTION_LENGTH`](/do…
v2.1.299WebFetch Documentation arrivedAnthropic's documentation has since written up WebFetch, on Error reference.
the line in the docs

For the network lock, the warning names `sandbox.network.allowedDomains` and `allowManagedDomainsOnly`, and says `only allowed domains (and WebFetch domain rules) from managed settings are honored`.
v2.1.299WebFetch Documentation arrivedAnthropic's documentation has since written up WebFetch, on Error reference.
the line in the docs

For the network lock, the warning names `sandbox.network.allowedDomains` and `allowManagedDomainsOnly`, and says `only allowed domains (and WebFetch domain rules) from managed settings are honored`.
v2.1.299sandbox.filesystem.allowRead Documentation arrivedAnthropic's documentation has since written up sandbox.filesystem.allowRead, on Error reference.
the line in the docs

sandbox.filesystem.allowRead is ignored — managed settings set allowManagedReadPathsOnly, so only allowRead paths from managed settings are honored. The 3 entries in /home/you/.claude/settings.json will NOT apply (see https://code.claude.c…
v2.1.300/mcp Documentation arrivedAnthropic's documentation has since written up /mcp, on Error reference.
the line in the docs

* For other reserved names to avoid, see [MCP configuration warnings](/docs/en/mcp#configuration-warnings)
v2.1.299/mcp Documentation arrivedAnthropic's documentation has since written up /mcp, on Error reference.
the line in the docs

* For other reserved names to avoid, see [MCP configuration warnings](/docs/en/mcp#configuration-warnings)
v2.1.299/share Documentation arrivedAnthropic's documentation has since written up /share, on Error reference.
the line in the docs

path: .claude/rules/shared.md
v2.1.299/sandbox Documentation arrivedAnthropic's documentation has since written up /sandbox, on Error reference.
the line in the docs

* To sandbox the sessions the server starts, turn on [sandboxing](/docs/en/sandboxing) by setting [`sandbox.enabled`](/docs/en/settings-reference#sandbox-enabled) to `true` in a [settings file](/docs/en/settings#where-settings-live)
v2.1.299/sandbox Documentation arrivedAnthropic's documentation has since written up /sandbox, on Error reference.
the line in the docs

* To sandbox the sessions the server starts, turn on [sandboxing](/docs/en/sandboxing) by setting [`sandbox.enabled`](/docs/en/settings-reference#sandbox-enabled) to `true` in a [settings file](/docs/en/settings#where-settings-live)
v2.1.299/sandbox Documentation arrivedAnthropic's documentation has since written up /sandbox, on Error reference.
the line in the docs

* To sandbox the sessions the server starts, turn on [sandboxing](/docs/en/sandboxing) by setting [`sandbox.enabled`](/docs/en/settings-reference#sandbox-enabled) to `true` in a [settings file](/docs/en/settings#where-settings-live)
v2.1.300claude remote-control Documentation arrivedAnthropic's documentation has since written up claude remote-control, on Error reference.
the line in the docs

| `--sandbox is not supported by claude remote-control` / `--no-sandbox is not supported by claude remote-control` | [Command-line errors](#sandbox-is-not-supported-by-claude-remote-control) |
v2.1.300claude remote-control Documentation arrivedAnthropic's documentation has since written up claude remote-control, on Error reference.
the line in the docs

| `--sandbox is not supported by claude remote-control` / `--no-sandbox is not supported by claude remote-control` | [Command-line errors](#sandbox-is-not-supported-by-claude-remote-control) |
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.
v2.1.206tengu_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.
v2.1.300tengu_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.
Feedback