Addendum: There is still a thunderbird-exchangecalendar-beta package on AUR, carrying the latest tagged release of this project from 2019.
So there is really no loss to delete this alpha package. On 6 August 2022 14:37:30 GMT+02:00, not...@aur.archlinux.org wrote: >MarsSeed [1] filed a deletion request for thunderbird- >exchangecalendar-alpha [2]: > >This Thunderbird module has not been developed since 2018. It was >compatible with Thunderbird v52-59, and this AUR package carries the >last experimental alpha for Thunderbird v60. > >Meanwhile, current Arch repo version of Thunderbird is v91.12.0, and >v102 has recently been released. > >So I recommend deleting this long-discontinued addon package which >does not work with current Thunderbird versions. > >[1] https://aur.archlinux.org/account/MarsSeed/ >[2] https://aur.archlinux.org/pkgbase/thunderbird-exchangecalendar-alpha/