{"version":"2.1.322","summary":"You can now use fast mode on Google Vertex AI for models that support it there. On Vertex, fast mode only works when the model's region is global, us or eu. If the region does not fit, a message tells you which setting to change. A saved `fastMode` setting is ignored on Vertex, so you turn it on with `\/fast` each session. Outside the Anthropic API, fast mode messages now use wording that does not assume Anthropic or Opus. Setting `CLAUDE_CODE_DISABLE_BG_EXIT_HANDOFF` or `CLAUDE_DISABLE_ADOPT` stops Claude Code from handing over background work when you exit.\n\nTurning fast mode on now saves your setting against the right model. Claude Code first looks up the model that fast mode will run on. It then uses that model when it writes the setting.","filter":{"section":null,"tier":null,"area":null},"offset":0,"limit":50,"count":6,"total":6,"next_offset":null,"next_url":null,"entries":[{"anchor":"fast-mode-extended-to-vertex-ai-keyed-on-a-new-vertex-fast","heading":"Fast mode extended to Vertex AI, session-only and limited to some regions","glance":"Fast mode can now run on Vertex AI for models that support it, only for the current session, in regions global, us or eu, with new wording and retry handling","teaser":null,"tier":"use","area":"Models","section":"What probably matters to you","position":0,"scope":"both","heads_up":true,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.322\/e\/fast-mode-extended-to-vertex-ai-keyed-on-a-new-vertex-fast","entry_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.322\/e\/fast-mode-extended-to-vertex-ai-keyed-on-a-new-vertex-fast.json"},{"anchor":"background-exit-handoff-predicate-now-depends-on-an-adopt-ki","heading":"Either of two variables turns off handing over background work on exit","glance":"Background exit handoff stays on unless `CLAUDE_CODE_DISABLE_BG_EXIT_HANDOFF` or `CLAUDE_DISABLE_ADOPT` is set","teaser":null,"tier":"use","area":"Sessions","section":"What probably matters to you","position":1,"scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.322\/e\/background-exit-handoff-predicate-now-depends-on-an-adopt-ki","entry_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.322\/e\/background-exit-handoff-predicate-now-depends-on-an-adopt-ki.json"},{"anchor":"fast-mode-cooldown-can-now-be-a-refused-for-this-project-s","heading":"Fast mode can now show that it was refused for your project","glance":"Fast mode can pause with the message \"Fast mode was refused for this project\", then shows \"Trying fast mode again\" when the pause ends","teaser":null,"tier":"notice","area":"Models","section":"Improvements","position":3,"scope":"both","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.322\/e\/fast-mode-cooldown-can-now-be-a-refused-for-this-project-s","entry_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.322\/e\/fast-mode-cooldown-can-now-be-a-refused-for-this-project-s.json"},{"anchor":"the-main-system-prompt-gained-text","heading":"Claude is told to keep your personal details out of requests to outside services","glance":"Claude's main instructions now tell it not to send your name, project, email or other personal details to outside services unless you ask","teaser":null,"tier":"notice","area":"System Prompt","section":"Improvements","position":6,"scope":"individual","heads_up":true,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.322\/e\/the-main-system-prompt-gained-text","entry_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.322\/e\/the-main-system-prompt-gained-text.json"},{"anchor":"fast-mode-toggle-resolves-the-target-model-and-passes-it-to","heading":"Turning fast mode on now uses the fast mode model when saving settings","glance":"Turning fast mode on now looks up the model fast mode will run on and uses it when saving the setting","teaser":null,"tier":"notice","area":"Models","section":"Bug Fixes","position":0,"scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.322\/e\/fast-mode-toggle-resolves-the-target-model-and-passes-it-to","entry_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.322\/e\/fast-mode-toggle-resolves-the-target-model-and-passes-it-to.json"},{"anchor":"version-bump-to-21322-is-the-only-change-in-this-part-of-t","heading":"Version number updated to 2.1.322","glance":"Claude Code now reports version 2.1.322, with a new build time and build identifier, and no change in behaviour","teaser":null,"tier":"internal","area":"Elsewhere","section":"Internal Changes","position":0,"scope":"individual","heads_up":false,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.322\/e\/version-bump-to-21322-is-the-only-change-in-this-part-of-t","entry_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.322\/e\/version-bump-to-21322-is-the-only-change-in-this-part-of-t.json"}],"facets":{"sections":[{"value":"What probably matters to you","entries":2},{"value":"Improvements","entries":2},{"value":"Bug Fixes","entries":1},{"value":"Internal Changes","entries":1}],"tiers":[{"value":"notice","entries":3},{"value":"use","entries":2},{"value":"internal","entries":1}],"areas":[{"value":"Models","entries":3},{"value":"Elsewhere","entries":1},{"value":"Sessions","entries":1},{"value":"System Prompt","entries":1}]}}