There was a big revamp in Notepad++ v8.3 due to the management of huge files.
This important modification make a lot of plugins incompatible to Notepad++ v8.3 (see #11198) and later version (crash issues).
It would be better to prevent such problem by adding the plugin compatibility of Notepad++ versions in NppPluginList.
So PluginAdmin can use this information to determinate if the plugin in plugin list is compatible to Notepad++ (to show or hide the plugin in/from the list).

ref:
notepad-plus-plus/nppPluginList#416