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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.

Events22,542dated, and never edited afterwards
Newestthe last time anything moved
Flag readings moved17,190a reading is one sample, for one account
Documentation arrived5,242a docs edit touched an entry's names
WhenEntryWhat happened
v2.1.248--restricted Documentation arrivedAnthropic's documentation has since written up --restricted, on Tools reference.
the line in the docs

* A permissions [deny rule](/docs/en/permissions#match-all-uses-of-a-tool), the `--disallowedTools` flag, or [`--restricted`](/docs/en/cli-reference#cli-flags) removes `Bash` from the session.
v2.1.234--disallowedTools Documentation arrivedAnthropic's documentation has since written up --disallowedTools, on Tools reference.
the line in the docs

* A permissions [deny rule](/docs/en/permissions#match-all-uses-of-a-tool), the `--disallowedTools` flag, or [`--restricted`](/docs/en/cli-reference#cli-flags) removes `Bash` from the session.
v2.1.248--tools Documentation arrivedAnthropic's documentation has since written up --tools, on Tools reference.
the line in the docs

* You name `Glob` or `Grep` in [`--tools` or `--allowedTools`](/docs/en/cli-reference#cli-flags) when you start the session, or in the equivalent [Agent SDK](/docs/en/agent-sdk/overview) options. With `--tools` you get the ones you list, a…
v2.1.239--tools Documentation arrivedAnthropic's documentation has since written up --tools, on Tools reference.
the line in the docs

* You name `Glob` or `Grep` in [`--tools` or `--allowedTools`](/docs/en/cli-reference#cli-flags) when you start the session, or in the equivalent [Agent SDK](/docs/en/agent-sdk/overview) options. With `--tools` you get the ones you list, a…
v2.1.234--allowedTools Documentation arrivedAnthropic's documentation has since written up --allowedTools, on Tools reference.
the line in the docs

* You name `Glob` or `Grep` in [`--tools` or `--allowedTools`](/docs/en/cli-reference#cli-flags) when you start the session, or in the equivalent [Agent SDK](/docs/en/agent-sdk/overview) options. With `--tools` you get the ones you list, a…
v2.1.268placement Documentation arrivedAnthropic's documentation has since written up placement, on Automate actions with hooks.
the line in the docs

* **A field at the wrong level**: compare each field's placement against the [JSON output](/docs/en/hooks#json-output) format. For example, `permissionDecision` belongs inside `hookSpecificOutput`, not at the top level.
v2.1.242region Documentation arrivedA small documentation edit on Claude Code on Google Cloud's Agent Platform touched a line naming region after this was published.
the line in the docs

Choose how you authenticate to Google Cloud: Application Default Credentials from `gcloud`, a service account key file, or credentials already in your environment. The wizard asks for your project and region, verifies which Claude models y…
v2.1.268env Documentation arrivedA small documentation edit on Claude Code on Google Cloud's Agent Platform touched a line naming env after this was published.
the line in the docs

Choose how you authenticate to Google Cloud: Application Default Credentials from `gcloud`, a service account key file, or credentials already in your environment. The wizard asks for your project and region, verifies which Claude models y…
v2.1.257Monitor Documentation arrivedA small documentation edit on Run Claude Code behind a corporate launcher touched a line naming Monitor after this was published.
the line in the docs

With a launcher configured, `ps` and Activity Monitor no longer show Claude Code's `claude bg-pty-host` and `claude bg-spare` labels for the background helper processes, because the launcher's `exec` rebuilds the argument list. Losing the …
v2.1.257Monitor Documentation arrivedA small documentation edit on Run Claude Code behind a corporate launcher touched a line naming Monitor after this was published.
the line in the docs

With a launcher configured, `ps` and Activity Monitor no longer show Claude Code's `claude bg-pty-host` and `claude bg-spare` labels for the background helper processes, because the launcher's `exec` rebuilds the argument list. Losing the …
v2.1.248--tools Documentation arrivedA small documentation edit on CLI reference touched a line naming --tools after this was published.
the line in the docs

| `--tools` | Restrict which built-in tools Claude can use. Use `""` to disable all, `"default"` for the default set, or tool names like `"Bash,Edit,Read"`. On macOS, Linux, and WSL, the default set leaves out `Glob` and `Grep`, as describ…
v2.1.239--tools Documentation arrivedA small documentation edit on CLI reference touched a line naming --tools after this was published.
the line in the docs

| `--tools` | Restrict which built-in tools Claude can use. Use `""` to disable all, `"default"` for the default set, or tool names like `"Bash,Edit,Read"`. On macOS, Linux, and WSL, the default set leaves out `Glob` and `Grep`, as describ…
v2.1.236disallowedTools Documentation arrivedA small documentation edit on CLI reference touched a line naming disallowedTools after this was published.
the line in the docs

| `--tools` | Restrict which built-in tools Claude can use. Use `""` to disable all, `"default"` for the default set, or tool names like `"Bash,Edit,Read"`. On macOS, Linux, and WSL, the default set leaves out `Glob` and `Grep`, as describ…
v2.1.234--disallowedTools Documentation arrivedA small documentation edit on CLI reference touched a line naming --disallowedTools after this was published.
the line in the docs

| `--tools` | Restrict which built-in tools Claude can use. Use `""` to disable all, `"default"` for the default set, or tool names like `"Bash,Edit,Read"`. On macOS, Linux, and WSL, the default set leaves out `Glob` and `Grep`, as describ…
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.
v2.1.248tengu_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.
v2.1.223tengu_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.
v2.1.206tengu_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.
v2.1.248tengu_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.
v2.1.223tengu_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.
v2.1.232tengu_clever_orbit Flag reading movedThe flag server now returns off for tengu_clever_orbit, read as this account.
v2.1.232tengu_clever_orbit Flag reading movedThe flag server now returns off for tengu_clever_orbit, read as this account.
v2.1.232tengu_clever_orbit Flag reading movedThe flag server now returns off for tengu_clever_orbit, read as this account.
v2.1.232tengu_clever_orbit Flag reading movedThe flag server now returns off for tengu_clever_orbit, read as this account.
v2.1.232tengu_clever_orbit Flag reading movedThe flag server now returns off for tengu_clever_orbit, read as this account.
v2.1.236tengu_clever_orbit Flag reading movedThe flag server now returns off for tengu_clever_orbit, read as this account.
v2.1.232tengu_clever_orbit Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_clever_orbit, read as this account.
v2.1.232tengu_clever_orbit Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_clever_orbit, read as this account.
v2.1.232tengu_clever_orbit Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_clever_orbit, read as this account.
v2.1.232tengu_clever_orbit Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_clever_orbit, read as this account.
v2.1.232tengu_clever_orbit Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_clever_orbit, read as this account.
v2.1.236tengu_clever_orbit Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_clever_orbit, 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.
v2.1.248tengu_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.
v2.1.223tengu_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.
v2.1.206tengu_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.
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