At the ConTeXt intro workshop last Wednesday, participants struggled with ConTeXt on the newly released TeX Live 2026.
Not the usual about wrong paths or unwritable cache directories.

ConTeXt was apparently correctly installed, generating the file database and the format was working, but then it couldn’t find the format file if the "context" or "mtxrun" command wasn’t called with its full path.

TeX Live’s processes were changed before this release and something’s broken.

#TeXLive #TeXConTeXt

We couldn’t analyze the problem further, it happened at least on a Mac and not in everyone’s installation. It is possible that the working installations actually used files from an older TeX live.
@context
Had the same Problem using TeX-Live on an Arch-based System. #ConTeXt stopped working while everything else was fine.
Now using the ConTeXt standalone instead of TeX-Live and it works without any issues.