I did not update my version because I ran into the issue “Cannot read property ‘i18n’ of undefined” when accessing the settings of AMp plugin.
(i have the same problem with the version you gave in the comment)
if you have a fix for this it would be apreciated too 🙂
So I stayed to 0.7.2 that worked well.
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Anyway, is there a “simple” solution to set the URL to /amp/ and not ?amp ? (without changing version? ==> I ask ths because it was the case previously)