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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
v2.1.122tengu_slate_harrier Flag reading movedThe flag server now returns "off" for tengu_slate_harrier, read as this account.
v2.1.223tengu_slate_harrier Flag reading movedThe flag server now returns "off" for tengu_slate_harrier, read as this account.
v2.1.91tengu_slate_finch Flag reading movedThe flag server now returns off for tengu_slate_finch, read as this account.
v2.1.248tengu_slate_anchor Flag reading movedThe flag server now returns on for tengu_slate_anchor, read as this account.
v2.1.223tengu_skills_dashboard_enabled Flag reading movedThe flag server now returns off for tengu_skills_dashboard_enabled, read as this account.
v2.1.113tengu_silk_hinge Flag reading movedThe flag server now returns off for tengu_silk_hinge, read as this account.
v2.1.187tengu_silk_almanac Flag reading movedThe flag server now returns off for tengu_silk_almanac, read as this account.
v2.1.86tengu_sessions_elevated_auth_enforcement Flag reading movedThe flag server now returns on for tengu_sessions_elevated_auth_enforcement, read as this account.
v2.1.232tengu_sessions_elevated_auth_enforcement Flag reading movedThe flag server now returns on for tengu_sessions_elevated_auth_enforcement, read as this account.
v2.1.232tengu_session_name_uniqueness Flag reading movedThe flag server now returns off for tengu_session_name_uniqueness, read as this account.
v2.1.232tengu_session_name_uniqueness Flag reading movedThe flag server now returns off for tengu_session_name_uniqueness, read as this account.
v2.1.179tengu_sepia_moth Flag reading movedThe flag server now returns off for tengu_sepia_moth, read as this account.
v2.1.178tengu_scratch Flag reading movedThe flag server now returns off for tengu_scratch, read as this account.
v2.1.3tengu_scratch Flag reading movedThe flag server now returns off for tengu_scratch, read as this account.
v2.1.229tengu_scalable_quiche Flag reading movedThe flag server now returns off for tengu_scalable_quiche, read as this account.
v2.1.227tengu_scalable_quiche Flag reading movedThe flag server now returns off for tengu_scalable_quiche, read as this account.
v2.1.98tengu_sage_compass Flag reading movedThe flag server now returns [] for tengu_sage_compass, read as this account.
v2.1.92tengu_sage_compass Flag reading movedThe flag server now returns [] for tengu_sage_compass, read as this account.
v2.1.83tengu_sage_compass Flag reading movedThe flag server now returns [] for tengu_sage_compass, read as this account.
v2.1.242tengu_saffron_wren Flag reading movedThe flag server now returns on for tengu_saffron_wren, read as this account.
v2.1.234tengu_saffron_wren Flag reading movedThe flag server now returns on for tengu_saffron_wren, read as this account.
v2.1.177tengu_saffron_lattice Flag reading movedThe flag server now returns {"enabled":false} for tengu_saffron_lattice, read as this account.
v2.1.177tengu_saffron_lattice Flag reading movedThe flag server now returns {"enabled":false} for tengu_saffron_lattice, read as this account.
v2.1.170tengu_saffron_lattice Flag reading movedThe flag server now returns {"enabled":false} for tengu_saffron_lattice, read as this account.
v2.1.190tengu_saffron_credits_only_tiers Flag reading movedThe flag server now returns ["enterprise"] for tengu_saffron_credits_only_tiers, read as this account.
v2.1.248tengu_saddle_lantern Flag reading movedThe flag server now returns on for tengu_saddle_lantern, read as this account.
v2.1.248tengu_saddle_lantern Flag reading movedThe flag server now returns on for tengu_saddle_lantern, read as this account.
v2.1.232tengu_saddle_lantern Flag reading movedThe flag server now returns on for tengu_saddle_lantern, read as this account.
v2.1.241tengu_sable_thrush Flag reading movedThe flag server now returns on for tengu_sable_thrush, read as this account.
v2.1.240tengu_sable_thrush Flag reading movedThe flag server now returns on for tengu_sable_thrush, read as this account.
v2.1.240tengu_sable_thrush Flag reading movedThe flag server now returns on for tengu_sable_thrush, read as this account.
v2.1.240tengu_russet_plover Flag reading movedThe flag server now returns on for tengu_russet_plover, read as this account.
v2.1.239tengu_russet_plover Flag reading movedThe flag server now returns on for tengu_russet_plover, read as this account.
v2.1.248tengu_retire_chat_relay_artifact_backstop Flag reading movedThe flag server now returns on for tengu_retire_chat_relay_artifact_backstop, read as this account.
v2.1.232tengu_report_findings_tool Flag reading movedThe flag server now returns on for tengu_report_findings_tool, read as this account.
v2.1.222tengu_remote_auto_mode_include_destructive_mcp Flag reading movedThe flag server now returns off for tengu_remote_auto_mode_include_destructive_mcp, read as this account.
v2.1.251tengu_radiant_island Flag reading movedThe flag server now returns [] for tengu_radiant_island, read as this account.
v2.1.240tengu_radiant_island Flag reading movedThe flag server now returns [] for tengu_radiant_island, read as this account.
v2.1.240tengu_radiant_island Flag reading movedThe flag server now returns [] for tengu_radiant_island, read as this account.
v2.1.120tengu_quiet_harbor Flag reading movedThe flag server now returns off for tengu_quiet_harbor, read as this account.
v2.1.120tengu_quiet_harbor Flag reading movedThe flag server now returns off for tengu_quiet_harbor, read as this account.
v2.1.233tengu_quartz_thimble Flag reading movedThe flag server now returns on for tengu_quartz_thimble, read as this account.
v2.1.224tengu_quartz_thimble Flag reading movedThe flag server now returns on for tengu_quartz_thimble, read as this account.
v2.1.232tengu_prompt_cache_diagnostics Flag reading movedThe flag server now returns on for tengu_prompt_cache_diagnostics, read as this account.
v2.1.248tengu_prompt_cache_1h_config Flag reading movedThe flag server now returns {"allowlist":["repl_main_thread*","sdk","auto_mode","rolling_compact","memdir_relevance","agent_classifier","prompt_suggestion","away_summary","extract_memories"]} for tengu_prompt_cache_1h_config, read as this account.
v2.1.234tengu_polished_lagoon Flag reading movedThe flag server now returns on for tengu_polished_lagoon, read as this account.
v2.1.196tengu_plugin_binary_assets Flag reading movedThe flag server now returns off for tengu_plugin_binary_assets, read as this account.
v2.1.248tengu_plucky_orchard Flag reading movedThe flag server now returns on for tengu_plucky_orchard, read as this account.
v2.1.14tengu_plank_river_frost Flag reading movedThe flag server now returns "user_intent" for tengu_plank_river_frost, read as this account.
v2.1.122tengu_pewter_ledger Flag reading movedThe flag server now returns "OFF" for tengu_pewter_ledger, read as this account.
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