> On Oct 16, 2019, at 3:35 PM, Murray Eisenberg <[hidden email]> wrote:
> I originally installed MacTeX 2019 under Mojave when it was released, and have kept it, including TeXShop, up-to-date still under Mojave.
> Before or after upgrading from Mojave to Catalina, do I need to reinstall all or part of MacTeX 2019 or TeXLive 2019?
> Murray Eisenberg [hidden email] > 503 King Farm Blvd #101 Home (240)-246-7240
> Rockville, MD 20850-6667 Mobile (413)-427-5334
You shouldn't have to re-install Tex Live or TeXShop. Right now most of the tough love stuff is still turned off; when it gets turned on a hardened MacTeX-2019 installer will be introduced but that will only be needed for new installations.