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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.

Events22,663dated, and never edited afterwards
Newestthe last time anything moved
Flag readings moved17,290a reading is one sample, for one account
Documentation arrived5,263a docs edit touched an entry's names
WhenEntryWhat happened
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.
v2.1.299tengu_glowing_lark Flag reading movedThe flag server now returns off for tengu_glowing_lark, read as this account.
v2.1.299tengu_glowing_lark Flag reading movedThe flag server now returns off for tengu_glowing_lark, read as this account.
v2.1.307/mcp Documentation arrivedAnthropic's documentation has since written up /mcp, on Authentication for connectors.
the line in the docs

* **Create a confidential client**: create a client ID and secret for Claude in your authorization server, and register the redirect URI `https://claude.ai/api/mcp/auth_callback`
v2.1.299user.email Documentation arrivedA small documentation edit on compliance-sessions touched a line naming user.email after this was published.
the line in the docs

In each session object, `user.id` is always set and survives account deletion; `user.email_address` is `null` when the user's account has been deleted or the user is no longer a member of an organization your key can read. `workspace_id` i…
v2.1.307ANTHROPIC_AUTH_TOKEN Documentation arrivedAnthropic's documentation has since written up ANTHROPIC_AUTH_TOKEN, on java.
the line in the docs

// Or configures using the `ANTHROPIC_API_KEY`, `ANTHROPIC_AUTH_TOKEN`, and `ANTHROPIC_BASE_URL` environment variables
v2.1.307ANTHROPIC_BASE_URL Documentation arrivedAnthropic's documentation has since written up ANTHROPIC_BASE_URL, on java.
the line in the docs

// Or configures using the `ANTHROPIC_API_KEY`, `ANTHROPIC_AUTH_TOKEN`, and `ANTHROPIC_BASE_URL` environment variables
v2.1.307ANTHROPIC_AUTH_TOKEN Documentation arrivedA small documentation edit on csharp touched a line naming ANTHROPIC_AUTH_TOKEN after this was published.
the line in the docs

// Configured using the ANTHROPIC_API_KEY, ANTHROPIC_AUTH_TOKEN, and ANTHROPIC_BASE_URL environment variables
v2.1.307ANTHROPIC_BASE_URL Documentation arrivedA small documentation edit on csharp touched a line naming ANTHROPIC_BASE_URL after this was published.
the line in the docs

// Configured using the ANTHROPIC_API_KEY, ANTHROPIC_AUTH_TOKEN, and ANTHROPIC_BASE_URL environment variables
v2.1.307ANTHROPIC_API_KEY Documentation arrivedA small documentation edit on csharp touched a line naming ANTHROPIC_API_KEY after this was published.
the line in the docs

// Configured using the ANTHROPIC_API_KEY, ANTHROPIC_AUTH_TOKEN, and ANTHROPIC_BASE_URL environment variables
v2.1.295budgetTokens Documentation arrivedAnthropic's documentation has since written up budgetTokens, on claude-prompting-best-practices.
the line in the docs

.budgetTokens(10000L)
v2.1.299new_str Documentation arrivedAnthropic's documentation has since written up new_str, on text-editor-tool.
the line in the docs

"new_str",
v2.1.307ANTHROPIC_API_KEY Documentation arrivedAnthropic's documentation has since written up ANTHROPIC_API_KEY, on Process results programmatically.
the line in the docs

-H "x-api-key: $ANTHROPIC_API_KEY" \
v2.1.307/mcp Documentation arrivedA small documentation edit on quickstart touched a line naming /mcp after this was published.
the line in the docs

This quickstart takes you from creating a tunnel to Claude calling a private MCP server through it. It uses Docker Compose with [manual](https://platform.claude.com/docs/en/agents-and-tools/mcp-tunnels/concepts#credential-provisioning) cre…
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.
v2.1.261tengu_smooth_chipmunk Flag reading movedThe flag server now returns on for tengu_smooth_chipmunk, read as this account.
v2.1.299tengu_glowing_lark Flag reading movedThe flag server now returns on for tengu_glowing_lark, read as this account.
v2.1.299tengu_glowing_lark Flag reading movedThe flag server now returns on for tengu_glowing_lark, 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.
v2.1.307tengu_sunny_locket Flag reading movedThe flag server now returns {"mode":"off"} for tengu_sunny_locket, read as this account.
v2.1.302tengu_sunny_locket Flag reading movedThe flag server now returns {"mode":"off"} for tengu_sunny_locket, 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.
v2.1.299tengu_glowing_lark Flag reading movedThe flag server now returns off for tengu_glowing_lark, read as this account.
v2.1.299tengu_glowing_lark Flag reading movedThe flag server now returns off for tengu_glowing_lark, read as this account.
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