What probably matters to youSection of the release
What
The terminal renderer reads CLAUDE_CODE_DEBUG_REPAINTS and only captures per-component debug ownership information when it is set, so normal sessions skip that work. Layout caches also moved onto the nodes themselves.
Details
Root render nodes are now created with an explicit layout engine config.
New per-node fields cachedLayout, pendingClears and scrollCommitStartedAt replace a separate side map.
Evidence
CLAUDE_CODE_DEBUG_REPAINTS
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
