- Upgraded directly from Mojave 10.14.6 to 10.15.7 (went smoothly)
- Considered migrating from Visual Studio 2017 (15.9) to 2019 (16.7), but have not yet done so.
- Refused to upgrade the proprietary firmware on my wifi AP's. The manufacturer has provided no changelog and does not provide a download link for the current firmware to enable a downgrade if it goes south.
I'm a software developer.
That is a luxury. My cable modem updated itself automatically to include a bloated asp server for modem interface and the modem crashes regularly, because it can not handle the load of the asp server on top of 4 devices connected to it.
Plus, they added a "Community Wifi" to share my already crappy connecting with strangers, overloading the modem even more.
Turn off automatic updates and only update the OS just before the next one is released. Stay one OS version behind current one, giving time for the bugs to get worked out.