Hi @manuwp09,
You can have a look at https://wordpress.org/plugins/accelerated-mobile-pages/#developers in which we explain what all the fixes we’ve done in our updates.
The changes that you refer are a mixture of others made previously. They do not follow good WordPress practices.
Each version has to carry the corresponding changes, so as not to harm users.
It is not a good idea to gather all the changes in the same verison
If you do any changes in the AMPforWP core plugin then all your changes will get reverted after the update and if you want to change anything then you need to follow this tutorial for make it update proof – https://ampforwp.com/tutorials/article/extend-amp-plugin/
