DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.
The function p3A() at line 358129, which compared terminal dimensions and output heights between render frames, was removed as part of simplifying the rendering pipeline.
Evidence
function p3A(A, B) at line 358129 in v2.0.2 (removed in v2.0.3)
Strings lifted out of the shipped bundle, so the claim above can be checked against them.