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Bump required PHP version to 5.6+ #726
We started with the mindset of "support as many WP installs as possible" and wanted to support even PHP 5.2 as WordPress itself does. That quickly turned out to be nearly impossible but we at least we tried to support PHP 5.3 for as long as possible. However, even that is largely inconvenient and we're constantly fighting it. For example, we're now working on a custom merge driver (#588) where we need to use the
So for VersionPress 3.0, we're dropping support for old, unsupported version of PHP and 5.6+ or 7.0 will be required. We're probably not going to upgrade our codebase to use the newest language features yet but the RequirementsChecker will check that the host runs on a supported version of PHP.
Things to do: