fallbackModel chains up to 3 backup models when your primary is overloaded; auto-retry on errors adds resilience. 14 fixes cover hangs, crashes, terminal input, and agents.
fallbackModel setting to configure up to three fallback models tried in order when the primary model is overloaded or unavailable; --fallback-model now also applies to interactive sessions"*" denies all tools); allow rules reject non-MCP globs, and unknown tool names in deny rules warn at startupclaude --bg-pty-host processes spinning at 100% CPU after the daemon dies while connected on macOS/login to clear a stale auth check after toggling /voiceallowedMcpServers/deniedMcpServers predicates not matching when they use ${VAR} referencesclaude agents/doctor showing a contradictory failed "Not inside a remote session" check when run inside a remote sessionclaude agents dispatch and reply inputsSendMessage from other Claude sessions no longer carry user authority — receivers refuse relayed permission requests, and auto mode blocks themMAX_THINKING_TOKENS=0, --thinking disabled, and the per-model thinking toggle now disable thinking on models that think by default via the Claude API (3P providers unchanged)claude update now announces the target version before downloading instead of going silentclaude agents: typing a URL into the list now filters to the session whose first prompt contained it