Performance & Stability

Improvements

• Optimize initial session loading with parallel fetches and scoped queries
• Upgrade Claude Agent SDK to 0.2.72 with new hooks and message types
• Workspace-level conversation endpoint to eliminate N+1 queries
• Add image paste support via Cmd+V in chat input
• Unify "Create from..." modal with PR, branch, and issue tabs
• Attach GitHub/Linear issue content to sessions and rename CreateFromPR to CreateSession
• Add LRU eviction to PRCache to bound memory usage
• Add conversationsBySession index for O(1) session lookups
• Split streaming selectors for fine-grained re-renders
• Improve session naming with issue context
• Replace bulk useConversationsWithUserMessages with scoped selectors
• Remove unused recharts dependency (~800KB)
• Add composite indexes for file_tabs and summaries hot queries (#902)
• Eliminate duplicate COUNT query in paginated message fetch (#901)
• Batch-fetch repos by ID in ListAllSessions instead of loading all (#905)
• Replace global scriptOutputVersion with per-run version map (#923)
• Stabilize VirtualizedMessageList itemContent callback (#918)
• Deduplicate branchCacheStore background refresh
• Eliminate redundant string clones in file watcher event loop
• Add compact mode to message pagination (#904)
• Use Set for O(1) active session lookups in useActiveSessions (#912)
• Reduce git process concurrency and add shutdown-aware context (#896)
• Add fullscreen expand for Mermaid diagrams (#814)
• Split StreamingMessage timeline into structural + text merge (#906)
• Reorder Create Session tabs and focus search on tab click
• Optimize useSidebarSessions workspace grouping from O(w×n) to O(w+n)
• Add max node count limit to buildFileTree (#919)
• Parallelize GitHub avatar lookups with bounded concurrency (#898)
• Show per-message token count and cost below AI responses (#816)
• Optimize session switching, search, and long conversation memory
• Add "Create Session from..." option to header plus menu
• Separate DataTable grouping from collapse state
• Debounce chat search input to reduce unnecessary re-renders
• Add "Sessions Needing Attention" command and deferred update restart
• Cache conversation panes for instant session switching
• Add file content cache and proactive prefetch for instant file opening
• Add in-app AWS SSO token refresh for Bedrock users
• Split 3 largest files into focused domain modules
• Upgrade Claude Agent SDK to 0.2.76
• Add specialized renderers for Grep and Glob tool blocks
• Auto-expand Edit tool blocks to show diffs inline by default
• Enable 1M context window for Opus 4.6 and Sonnet 4.6
• Add fast mode support (Opus 4.6 fast output)
• Add Aptabase product analytics telemetry
• Add gzip compression middleware to API responses
• Clean up SDK model display names and add Auto model option
• Add collapsible built-in default preview to review settings

Fixes

• Fetch tags during release to fix changelog range
• Use absolute path for Turbopack shiki alias to fix release builds
• Robust remote prefix stripping and template fallback in fix-issues action
• Improve merge PR dropdown with icons and group separators
• Expose comment id and title in MCP review comment tools
• Rename "Create from..." to "Create Session from..." and fix duplicate dots
• Defer editor focus in clear() to prevent undefined node error
• Resolve plan mode stuck state caused by SDK Zod validation errors
• Add tiered git command timeouts and clone retry with backoff
• Add 1MB size guard to GetFileDiff to prevent unbounded JSON responses (#893)
• Use content-based key in FileTree to prevent unnecessary expanded state resets (#920)
• Use server-scoped context for background goroutines (#908)
• Close useMessagePrefetch subscription leak on abort
• Add retry with exponential backoff for GitHub API rate limits (#907)
• Polish sessions table layout by removing redundant columns
• Add double-unlock guard to SessionLockManager (#917)
• Keep search box visible when branches search yields no results
• Reduce session state sync lag for PR/check status updates
• Eliminate diff file opening lag caused by FileHistoryPanel
• Use generic text for review item "Add to chat" action
• Audit and improve Command Palette — fix broken commands, add 13 new entries
• Polish Merge PR popover to match Review popover styling
• Add --follow flag to file history git log for rename tracking
• Improve action templates and review prompts for robustness
• Use real-time WebSocket checkStatus for PR merge button visibility
• Commit queued messages on result event to prevent stuck queue
• Show specific reasons for merge blockers instead of generic "PR is blocked"
• Prevent blank conversation area when navigating back to evicted conversations
• Improve error handling for PR report MCP tools when backend is unreachable
• Improve error handling for review comment MCP tools when backend is unreachable
• Prevent duplicate key error in TabBar conversation list
• Persist conversation timeline on app quit mid-turn
• Align icons and prevent text wrapping in new session popover
• Restore auto-scroll to bottom when Edit tool blocks auto-expand
• Remove non-functional "View Summary" menu item from session toolbar
• Remove manual "Attach conversation context" UI
• Resolve auto-scroll race condition during streaming
• Prevent conversation area from going blank by keeping inactive panes measurable
• Clean up orphaned temp files on startup to prevent disk accumulation (#897)
• Render auto-compact notification inline in streaming timeline
• Suppress "No newline at end of file" warning in inline diff viewer
• Improve Plate.js editor quality — types, perf, and correctness
• Prevent blank conversation pane on session switch during streaming
• Resolve "mdx not found" language error in syntax highlighter
• Prevent blank conversation pane on session/conversation switch
• Show Fast Mode toggle in composer by requesting supported models from SDK
• Terminal respects version managers (mise, asdf, rbenv, nvm, pyenv)
• Clicking selected session while in module view navigates back to conversation
• Eliminate jarring scroll jump when switching conversations
• Scroll to bottom when first opening a session
• Prevent Merge PR button showing while CI checks run on new PR
• Prevent Fast Mode icon toggling back to unselected immediately
• Scroll to bottom when switching back to a session
• Make session switching instant for recently-viewed sessions
• Restore large text paste auto-conversion to attachment
• Move diff computation to Web Worker to prevent UI blocking
• Eliminate conversation tab scroll flash with per-conversation Virtuoso caching
• Use Pierre's built-in worker pool for off-thread Shiki tokenization
• Remove broken paint gate that left previous conversations invisible
• Revert Pierre worker pool to restore Shiki syntax highlighting (#1033)
• Dequeue message into timeline when agent picks it up on init
• Re-enable Pierre worker pool for off-thread Shiki tokenization
• Move Fast toggle before Thinking in composer toolbar
• Reduce notification focus-navigate window from 3s to 1s to prevent unwanted session switching
• Handle async rejection in Tauri event listener cleanup
• Position scroll-to-bottom pill closer to composer
• Eliminate blank conversation area on navigation by using synchronous LRU dispatch
• Deduplicate Auto model entries and fix auto model API passthrough
• Show correct 1M context window for extended context models
• Add pattern-based fallback for model display names
• Replace Tauri aptabase plugin with JS SDK

Misc

• Upgrade claude-agent-sdk from 0.2.72 to 0.2.75
• Add unit tests for 6 untested lib modules
• Improve sessions datatable with workspace names, branch icons, and action padding
• Use Search icon for Find tool in conversation stream
• Extract shared BranchPill component for consistent branch name styling
• Upgrade Go and Node dependency patches
• enhance: enrich all 6 review templates with structured workflows and severity guidance
• Upgrade shiki to v4.0.2 and @shikijs/* packages
• Fix stale and incorrect information across documentation