I can still release both versions when I do an update, the only difference is that mine is not the official version signed by the original author ElJaviLuki. I have already released updates to 9.9.1 above, so there is nothing for me to update at the moment. Some people just like official updates more, which I can understand.
If you install his official version then go back to mine later, it may give an error on the update. If that happens, all you have to do is uninstall the official version then install mine, as mine is not signed by him, it will likely throw an error and say it can't be installed when you try to install it.