Catalina: Upgrade carefully.

Catalina is here. It fixes many things, among them iTunes. On the other hand, it drops support for 32-Bit MacOS applications.
Consider the upgrade carefully.
$ system_profiler SPApplicationsDataType
…
Steam:
Version: 1.5
Obtained from: Identified Developer
Last Modified: 23.08.16, 20:32
Kind: Intel
64-Bit (Intel): No
Signed by: Developer ID Application: Valve Corporation, Developer ID Certification Authority, Apple Root CA
Location: /Applications/Steam.app
…
Anything listed with 64-Bit (Intel): No
will stop working after the
upgrade. Check before you upgrade, and consider what you will be losing
access to if you perform the upgrade.
On my box:
- Apprentice Alf DeDRM Plugin for Calibre
- Civilization V
- CoverScout 3
- Google Music Manager
- Google Photos Backup
- GrandPerspective
- JD-GUI
- Kindle (1.23.1, locked from upgrades)
- Mathematica
- Microsoft Office
- SongGenie 2
- Steam
- TigerVNC
- UnRarX
Some of them are unimportant, other things are quite critical, some of them can’t be updated easily.
At this point, for me this is a hard pass, and a lot of work to be done.
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