v2026.5.15

Added

• Transcript viewport flight recording and regression tests now cover follow-mode intent, row reveal, and virtualized scrolling behavior
• Canonical thought segments now persist through session journals, transcript snapshots, and replay materialization
• Thinking block UI now uses a quiet line treatment with label-sized content text

Changed

• Agent panel scrolling now routes through the deterministic transcript viewport controller instead of the legacy auto-scroll and thread-follow paths
• Review and modified-file surfaces are more compact and keep the main panel structure stable while reviewing changes
• Streamdown markdown rendering now has more polished tables and code blocks, including stable syntax-highlighting wrappers

Fixed

• Sending a message no longer hides the active thinking/planning block by snapping back to the user message
• Loaded Claude sessions preserve completed thinking blocks even after answer text exists
• Review diff rendering now guards against malformed null-line diff events instead of crashing the review view
• Expanded edit tool diffs no longer flicker in and out during scroll and resize churn