Strange attempted update to 20200608 on macOS Mojave just now...
After an unsuccessful in app update (to 20200608) on Mojave just now (Jami.app disappeared from /Applications), the deleted Jami.app appeared in the Bin/Trash renamed to "Ring (20200529).app", but was successfully updated on Catalina (on a different Mac) and appeared correctly in the Bin/Trash as "Jami (20200529).app". Seems like an update bug and a regression of some sort to me.