Updates and Uninstallation

Self-Update

Check without changing the executable, or install the latest stable release:

jup update --check
jup update

The updater selects the archive for the current platform, verifies it against checksums.txt, and only then replaces the running installation. On Windows, replacement finishes immediately after the process exits.

Uninstall

Remove an installation created by the release installer while preserving project configurations and settings aliases:

jup uninstall

Also remove all data under JAVAUP_HOME:

jup uninstall --purge

--purge is irreversible. Safety checks reject filesystem roots, paths that contain the user home directory, and executables outside JAVAUP_HOME/bin. Shell profile cleanup removes only installer-managed entries.

The command does not remove binaries installed by go install or another package manager. Remove those with the same installation tool. jup uninit is different: it removes only one project’s configuration.