These functions have either been deprecated or removed from usethis.

pr_pull_upstream()

pr_sync()

browse_github_token(...)

browse_github_pat(...)

github_token()

pr_pull_upstream()

This function has been replaced by pr_merge_main().

pr_sync()

Bundling these operations together did not seem justified, in terms of how rarely this comes up and, when it does, how likely merge conflicts are. Users of pr_sync() should implement these steps "by hand":

browse_github_token(), browse_github_pat()

These functions have been replaced by create_github_token().

github_token()

All implicit and explicit token discovery routes through gh::gh_token() now.