ZEISS periodically updates the EOS End of Support list. This can typically be found on the Z Drive and many of us store a copy locally.  The current version is always on Sharepoint.  I find it by searching for “End or Support”:

As of 2023, the file is maintained by Karl Sombrey:

Like any Excel File, Filters are used to narrow to what you are looking for (ie: Contura):

Note the file does have several tabs:

When new versions come out, relevant changes will be announced via email.