June LaTeX release: final call for testing

[Karl Berry]

The June 2022 release of LaTeX is going to show up in all major 
distributions during the next few days.  Because it was delayed a bit 
there is still time to do some further testing using

   pdflatex-dev, xelatex-dev, and/or lualatex-dev

in your current distribution, to help ensuring that everything works
well. If not, please submit a bug report. The tests so far showed that
all is well, but the more people have tested it beforehand the better,
as always. Thanks!