There are new version updates for both Extra Keys (2.2.3) and Extra Keys Pro (2.2.5).
These are maintenance releases only and are otherwise the same as the previous recent versions. However, they have some modifications that may help resolve a problem where the keys window fails to open on a few Windows 10 systems. Not all systems were affected and the exact cause for this happening only on particular machines is somewhat uncertain. The new versions include multiple checks and run-time compensations to provide improved resilience.
If the previous versions run without problem on your system, then there is no need to update.