Release / 2026-10-04

delta 0.20.1

Let lazygit and other TUIs map delta's output back to files and lines, through OSC 1717 metadata.

All of delta

Before you upgrade to 0.20.1

delta takes the terminal width from `$COLUMNS` when it is set.

Behavior changedView diffs side by side, with line numbers and line wrapping.

Read the evidence

dandavison/delta/pull/2240

What changed in 0.20.1

delta emits OSC 1717 diff-line metadata, including commit records, so tools that embed it can tell which file and line each displayed line belongs to. The terminal width is taken from `$COLUMNS` when set. Groups 0.20.0 and 0.20.1.

0.20.1. The OSC 1717 spec is a draft.

New things you can do

Emits OSC 1717 records, including custom commit records.

AddedLet a terminal UI such as lazygit find the file and line behind each line delta shows, through OSC 1717 metadata.

Read the evidence

Fixed and improved

`git grep -h` output is no longer misread as path and code.

Now worksHighlight `git blame` output and grep results from `rg`, `git grep` and `grep`.

Read the evidence

dandavison/delta/pull/2194

Seeded by @iluxav with Claude Code (canido), from the release's public sources. Each change links to its evidence.