DISABLE_UPGRADE_COMMAND

Updated October 13, 2026 by Alex Sorokoletov

DISABLE_UPGRADE_COMMAND is a Claude Code environment variable: /upgrade command. Its release history is not tracked here. It is listed in the official reference.

Status	Present in v2.1.294
Category	Feature toggles
Official docs	Listed

How to set it

For one session, export it in the shell that starts Claude Code:

export DISABLE_UPGRADE_COMMAND=<value>
claude

To apply it to every session, add it to the env object of a settings file:

// ~/.claude/settings.json
{
  "env": {
    "DISABLE_UPGRADE_COMMAND": "<value>"
  }
}

Related variables

CLAUDE_CODE_DISABLE_COMMAND_INJECTION_CHECK: Previously allowed disabling command injection detection.
DISABLE_BUG_COMMAND: /bug command.
DISABLE_DOCTOR_COMMAND: /doctor diagnostic command.
DISABLE_EXTRA_USAGE_COMMAND: Extra usage display.
DISABLE_FEEDBACK_COMMAND: /feedback command.
DISABLE_INSTALL_GITHUB_APP_COMMAND: GitHub app install command.
CLAUDE_CODE_DISABLE_ADMIN_ENV_UNION
CLAUDE_CODE_DISABLE_ARTIFACT

Frequently asked questions

What does DISABLE_UPGRADE_COMMAND do?

/upgrade command

Which Claude Code version has DISABLE_UPGRADE_COMMAND?

Its release history is not tracked here.

How do I set DISABLE_UPGRADE_COMMAND?

Export it before starting Claude Code (export DISABLE_UPGRADE_COMMAND=value), or add it to the "env" object in ~/.claude/settings.json to apply it to every session.

All variables, searchable: Claude Code environment variables.