v2.1.47 is a bug-fix heavy release with a few UX and performance improvements: it resolves many Windows line-ending/terminal rendering issues, fixes file write/line counting edge cases, and improves VS Code plan preview behavior. It also boosts stability and efficiency with better memory cleanup, faster startup and @-mention indexing, and more reliable compaction/resume behavior for large sessions, PDFs, and concurrent agents. Users and integrators should see fewer crashes and permission/telemetry issues, better hook inputs (including a new last_assistant_message field), and smoother long-running sessions overall.