Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.271 ·

New split-view rendering mode for diffs and code blocks

Diffs and code blocks gain a new side-by-side rendering mode

TierUnder the hoodhow much it should matter to you
Useful2my rating, 1 to 5
Signal2worth watching, 1 to 5
AreaElsewherewhat it touches
KindInternal Changesin v2.1.271,
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.

How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtThe finding shows the rendering capability being added but doesn't say whether or where it's actually surfaced in the UI yet.

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