1.2.5
The main change is related to the drop of electrolinux/php-html5lib (which was quite old and incompatible with the upcoming Composer 2.0) in flavor to masterminds/html5 (which is still maintained, compatible with Composer 2.0 and already used by Symfony).
That replacement should be transparent but if you find an issue, don't hesitate to report them.
Also, the HTML5 parser wasn't the one defined by default, so if you never forced the parser
option, you won't notice any changes.
PRs merged: