Upgrade
Direct upgrade to Garoon version 5.15 is supported only from versions 5.x.x.
If you are using Garoon prior to version 5.0, upgrade it to version 5.0 first, then upgrade it to 5.15.
Direct upgrade to Garoon version 5.15 is supported only from versions 5.x.x.
If you are using Garoon prior to version 5.0, upgrade it to version 5.0 first, then upgrade it to 5.15.