I am wanting to identify plugins and their contents, and am looking to see if I can avoid calculating the hash of all files in each plugin.
My immediate approach was to use the plugin slug or plugin file (see https://wordpress.stackexchange.com/a/290402/9702 for the distinction) and the version number.
However in the past I have come across plugins where the free version in the WordPress.org plugin repository and the paid-for version have shared the plugin slug and/or plugin file plus had overlapping version numbers. This is bad if you want to know which plugin is installed, because Foo v2.3 is no longer unique. Unfortunately I have forgotten which plugins did this.
Recently all examples I’ve seen of free/paid-for plugins have -pro appended to the plugin slug for the paid for version. Are there any you know of where the slug/plugin file is still reused for variants of the same plugin?