Under the hood
Diffs and code blocks gain a new side-by-side rendering mode
What
The renderers for diffs and code blocks (used to display file changes and highlighted code) now support a new renderSplit method that returns separate gutter (line-number/marker column) and content arrays, instead of one combined line of text. This sits alongside the existing unified render method that produces a single merged view.
Why
This lays the groundwork for displaying diffs and code side by side, gutter next to content, as an alternative to the current single merged view.
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The finding shows the rendering capability being added but doesn't say whether or where it's actually surfaced in the UI yet.