CCleaner 5.44.162.6577 Update

CCleaner indicates that there is an update 5.44.162.6577 available, but when download is installed version shows as 5.44.162.6575. What in fact is the latest version?

See the info here

https://forum.piriform.com/topic/52095-ccleaner-v5446575/?tab=comments#comment-297351

(6577 is for Pro and Trial versions only)