proton itself

These act on this installation rather than on your account, so none of them needs you to be signed in.

changelog

Print the release notes, newest first: the whole changelog, one version, or the releases between two of them.

–since names the version you are on and is not included; –until names where to stop and is. Releases older than the changelog itself are on the releases page.

proton changelog [VERSION]

proton changelog
proton changelog 2.4.1
proton changelog --since 2.3.0
proton changelog --since 2.3.0 --until 2.4.0

Flag	Description
--since string	Only releases after this version
--until string	Only releases up to and including this version

completion

Generate a shell completion script.

Completion knows the whole command tree, every flag, and the values each enumerated flag accepts - so it offers folder names, item types, output formats and setting keys as you type them. One script covers both proton and proton-cli.

bash proton completion bash > /etc/bash_completion.d/proton zsh proton completion zsh > “${fpath[1]}/_proton” fish proton completion fish > ~/.config/fish/completions/proton.fish powershell proton completion powershell | Out-String | Invoke-Expression

proton completion

uninstall

Remove a proton binary installed with the curl or PowerShell installer, or downloaded by hand.

A package-managed install (apt, dnf, apk, AUR, Homebrew, winget, npm, Nix) is refused, with the right command to use instead.

Only the binary goes, under both names it answers to. –purge also deletes your saved sessions and the ID cache.

proton uninstall

proton uninstall --dry-run
proton uninstall --yes
proton uninstall --yes --purge

Flag	Description
--purge	Also remove local data (saved sessions and ID cache)

update

Replace this proton binary in place with the latest GitHub release (or a specific version), verifying the download against the published SHA-256 checksums.

Only a curl-script install or a manually downloaded binary can update itself. If proton was installed with a package manager (apt, dnf, apk, Homebrew, winget, npm, Nix), update it with that package manager.

proton update [VERSION]

proton update
proton update --check
proton update 1.9.11
proton update --reinstall

Flag	Description
--check	Only report whether an update is available; don’t install
--reinstall	Install again even if already up to date

version

Print the version and build information.

proton version

proton version
proton version --output json

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Every command also takes the flags that work everywhere.