blocka wrote: Or does this mean that LimeService is only as compliant as the Community edition?
That statement is true.
There are differences between the LTS version 2.6.x and the "new" version 2.6X.X, which uses a different template system. When using professional limesurvey hosting (AKA LimeService) you will be offered the new version.
Master @DenisChenu is sharing & updating a great plugin improving accessibility (for humans or screen readers) but as far as I know this plugin is not really compatible with ≥2.50 version. Works with version 2.06 (recently renamed 2.6)