Follow Discord

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.

← All of v2.1.191 Home All releases ←olderv2.1.190 v2.1.193newer→

Claude Code v2.1.191 24 Jun 2026

Headless Environment Detection Improvement

What changed: The check for whether to skip browser-open operations (e.g., after auth) now handles more cases correctly:

Respects BROWSER="" (browser explicitly set to empty string) vs BROWSER=true (legacy signal meaning "use default").
Treats SSH_CONNECTION presence as a headless signal.
On Linux, treats absence of both DISPLAY and WAYLAND_DISPLAY as headless.

This reduces spurious browser-open attempts in remote/SSH environments.

Evidence

Headless check function (search for "SSH_CONNECTION" alongside "WAYLAND_DISPLAY")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.191 →