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.
| When | Entry | What happened |
|---|---|---|
v2.1.290set_model |
Documentation arrivedA small documentation edit on Agent SDK reference - Python touched a line naming set_model after this was published.
the line in the docs| `set_model(model)` | Change the model for the current session. Pass `None` to reset to [Claude Code's default model](/docs/en/model-config). A session in `auto` mode [changes to `default` mode](/docs/en/agent-sdk/permissions#auto-mode-au… |
|
v2.1.281set_model |
Documentation arrivedA small documentation edit on Agent SDK reference - Python touched a line naming set_model after this was published.
the line in the docs| `set_model(model)` | Change the model for the current session. Pass `None` to reset to [Claude Code's default model](/docs/en/model-config). A session in `auto` mode [changes to `default` mode](/docs/en/agent-sdk/permissions#auto-mode-au… |
|
v2.1.281set_model |
Documentation arrivedA small documentation edit on Agent SDK reference - Python touched a line naming set_model after this was published.
the line in the docs| `set_model(model)` | Change the model for the current session. Pass `None` to reset to [Claude Code's default model](/docs/en/model-config). A session in `auto` mode [changes to `default` mode](/docs/en/agent-sdk/permissions#auto-mode-au… |
|
v2.1.301/model |
Documentation arrivedA small documentation edit on Agent SDK reference - Python touched a line naming /model after this was published.
the line in the docs| `set_model(model)` | Change the model for the current session. Pass `None` to reset to [Claude Code's default model](/docs/en/model-config). A session in `auto` mode [changes to `default` mode](/docs/en/agent-sdk/permissions#auto-mode-au… |
|
v2.1.299/model |
Documentation arrivedA small documentation edit on Agent SDK reference - Python touched a line naming /model after this was published.
the line in the docs| `set_model(model)` | Change the model for the current session. Pass `None` to reset to [Claude Code's default model](/docs/en/model-config). A session in `auto` mode [changes to `default` mode](/docs/en/agent-sdk/permissions#auto-mode-au… |
|
v2.1.299/model |
Documentation arrivedA small documentation edit on Agent SDK reference - Python touched a line naming /model after this was published.
the line in the docs| `set_model(model)` | Change the model for the current session. Pass `None` to reset to [Claude Code's default model](/docs/en/model-config). A session in `auto` mode [changes to `default` mode](/docs/en/agent-sdk/permissions#auto-mode-au… |
|
v2.1.300set_permission_mode |
Documentation arrivedAnthropic's documentation has since written up set_permission_mode, on Configure permissions.
the line in the docs* **To return to auto mode**: switch to a supported model, then call `set_permission_mode("auto")` or `setPermissionMode("auto")`. If you switch the model back without making that call, the session stays in `default` mode. While the unsupp… |
|
v2.1.300set_permission_mode |
Documentation arrivedAnthropic's documentation has since written up set_permission_mode, on Configure permissions.
the line in the docs* **To return to auto mode**: switch to a supported model, then call `set_permission_mode("auto")` or `setPermissionMode("auto")`. If you switch the model back without making that call, the session stays in `default` mode. While the unsupp… |
|
v2.1.296set_model |
Documentation arrivedAnthropic's documentation has since written up set_model, on Configure permissions.
the line in the docsIf you switch a session that's in auto mode to a model that auto mode doesn't support, using [`set_model()`](/docs/en/agent-sdk/python#claudesdkclient), [`setModel()`](/docs/en/agent-sdk/typescript#query-object), or [`applyFlagSettings()`]… |
|
v2.1.296set_model |
Documentation arrivedAnthropic's documentation has since written up set_model, on Configure permissions.
the line in the docsIf you switch a session that's in auto mode to a model that auto mode doesn't support, using [`set_model()`](/docs/en/agent-sdk/python#claudesdkclient), [`setModel()`](/docs/en/agent-sdk/typescript#query-object), or [`applyFlagSettings()`]… |
|
v2.1.296set_model |
Documentation arrivedAnthropic's documentation has since written up set_model, on Configure permissions.
the line in the docsIf you switch a session that's in auto mode to a model that auto mode doesn't support, using [`set_model()`](/docs/en/agent-sdk/python#claudesdkclient), [`setModel()`](/docs/en/agent-sdk/typescript#query-object), or [`applyFlagSettings()`]… |
|
v2.1.290set_model |
Documentation arrivedAnthropic's documentation has since written up set_model, on Configure permissions.
the line in the docsIf you switch a session that's in auto mode to a model that auto mode doesn't support, using [`set_model()`](/docs/en/agent-sdk/python#claudesdkclient), [`setModel()`](/docs/en/agent-sdk/typescript#query-object), or [`applyFlagSettings()`]… |
|
v2.1.299WebFetch |
Documentation arrivedA small documentation edit on Intercept and control agent behavior with hooks touched a line naming WebFetch after this was published.
the line in the docs| `matcher` | `string` | `undefined` | Pattern matched against the event's filter field, following the [rules for matchers in settings files](/docs/en/hooks#matcher-patterns). For tool hooks, that field is the tool name. Built-in tools inc… |
|
v2.1.299WebFetch |
Documentation arrivedA small documentation edit on Intercept and control agent behavior with hooks touched a line naming WebFetch after this was published.
the line in the docs| `matcher` | `string` | `undefined` | Pattern matched against the event's filter field, following the [rules for matchers in settings files](/docs/en/hooks#matcher-patterns). For tool hooks, that field is the tool name. Built-in tools inc… |
|
v2.1.301tengu_cheeky_toucan |
Flag reading movedThe flag server now returns nothing at all, having stopped carrying it for tengu_cheeky_toucan, 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. | |
v2.1.302tengu_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. | |
v2.1.251tengu_juniper_relay |
Flag reading movedThe flag server now returns off for tengu_juniper_relay, 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. | |
v2.1.265tengu_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. | |
v2.1.206tengu_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. | |
v2.1.302tengu_sunny_locket |
Flag reading movedThe flag server now returns {"mode":"compact"} for tengu_sunny_locket, 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. | |
v2.1.283tengu_sunny_locket |
Flag reading movedThe flag server now returns {"mode":"compact"} for tengu_sunny_locket, read as this account. | |
v2.1.283tengu_sunny_locket |
Flag reading movedThe flag server now returns {"mode":"compact"} for tengu_sunny_locket, read as this account. | |
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. |