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Sweep 28 Aug 2026 · 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.250 Feeds RSS JSON llms.txt

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.

Reference / Environment variables

XDG_CONFIG_HOME

A Claude Code environment variable, read out of the shipped bundle. It has been in the build since v2.1.138, including the newest one read.

What it is

Remote settings can now supply many more environment variables, including auth tokens and home directory paths.

Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.223.

Presence across releases

ReleasesReadingDeclared typeDefault
2.1.245 – 2.1.250 5 releases never mined — —
2.1.210 – 2.1.243 33 releases in the build str —
2.1.138 – 2.1.209 62 releases in the build — —

A row reading never mined is a release with no archived bundle behind it. Nothing was read out of it, so nothing here says whether the name was in it. A declared type or a default is only ever what that release's own bundle stated.

Changelog entries naming it

  1. v2.1.247Installing the Zed Shift+Enter binding no longer rewrites your whole keymap

    Installing the Zed Shift+Enter binding now edits just that line, keeping your comments and existing bindings.

    named in this entry

  2. v2.1.223Remote-settings env allowlist widened

    Remote settings can now supply many more environment variables, including auth tokens and home directory paths.

    named in this entry

Documentation pages

A reference table page is one whose own table defines this name, and it is where the description above came from. A page that mentions it carries the name somewhere in its text and may say nothing about it at all. Every page carrying it.

Names beside it

Every environment variable in the inventory starting xdg, up to twelve of them.

XDG_DATA_HOMENo description from anybody. 2.1.208 XDG_RUNTIME_DIRThe messaging socket lives under XDG_RUNTIME_DIR with locked-down permissions and refuses to hijack a live one. 2.1.138

Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the environment variable does. All environment variables.