[DOCS] `/upgrade` command reference still describes the pre-v2.1.208 login fallback

Documentation Type

Incorrect/outdated documentation

Documentation Location

https://code.claude.com/docs/en/commands

Section/Topic

The /upgrade row in the "All commands" table.

Current Documentation

The /upgrade row currently says:

Open the upgrade page in your browser to switch to a higher plan tier. When the browser fails to open, the command shows a sign-in prompt without printing the URL

What's Wrong or Missing?

This describes behavior that was fixed in Claude Code v2.1.208. The v2.1.208 release notes state:

Fixed /upgrade showing a login flow instead of the upgrade URL when the browser fails to open

When the browser cannot be opened, the command now prints the upgrade URL instead of showing a login flow. The /upgrade reference is therefore outdated and can send users into an unnecessary authentication flow, while failing to tell them where to find the URL they can open manually.

Suggested Improvement

Update the /upgrade row to describe the v2.1.208 behavior, for example:

Open the upgrade page in your browser to switch to a higher plan tier. As of Claude Code v2.1.208, when the browser fails to open, the command prints the upgrade URL so you can open it manually.

If the behavior is intentionally limited to v2.1.208, state the applicable version range rather than retaining the pre-fix login-flow wording.

Impact

Medium - Makes feature difficult to understand

Additional Context

The related background-session errors section already records the v2.1.208 behavior:

In v2.1.208 only, the /model picker was also refused in a background session, and /upgrade printed the upgrade URL instead of opening a browser.

The command reference should use consistent wording so users who cannot launch a browser—such as users working over SSH or in a headless environment—know to open the printed URL manually.

Affected Pages:

| Page | Context |
|------|---------|
| https://code.claude.com/docs/en/commands | /upgrade command behavior when the browser fails to open |

Total scope: 1 page affected

The behavior change is documented in the v2.1.208 release notes.