|mediawiki/oauthclient-php : master||Update required PHP version and dependencies|
|mediawiki/oauthclient-php : master||Drop minus-x back a version to avoid PHP7.1 incompatibility|
I think the next version number should be 0.2.0.
It will have to be since the PHP version has been bumped.
We should probably bump it again to a supported version first, though, to avoid having to a separate major release for that. The CI libraries it uses probably already don't work with PHP 5.
To 5.6.99 which in practice means "PHP7 or HHVM". I don't think you can bump to 7.1 while still supporting HHVM, and then you get into all kinds of trouble on the Wikimedia infrastructure.
mediawiki-codesniffer 20+ needs PHP 7 or HHVM to run and checks the code against that syntax. It is not strictly necessary to update because of that, but it does make life simpler.
Tagging a new release is described at https://www.mediawiki.org/wiki/Gerrit/Troubleshooting#Tagging_an_extension_doesn't_work (or at least if there's less obscure documentation I didn't find it). We don't have release notes / history so no need to update any code (unless you want to add one :).