Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
Terminal RenderingArea: what it touches
Internal ChangesKind: in v2.1.227,
Internal ChangesSection of the release
What
The terminal renderer now stores each node's computed layout on the node itself rather than in a separate lookup table, and the layout engine carries its own counters for nodes visited, measure calls, cache hits and live nodes in place of module-level functions.
Evidence
cachedLayout
Strings lifted out of the shipped bundle, so the claim above can be checked against them.