When I log in to aMember I show an upgrade available. Upgrade Available: aMember Pro Core [4.2.17] We are currently using version 4.2.15. When I try to run the upgrade it freezes on the download. I also do not see any mention of the release in the News and Announcements thread. Is this a valid upgrade? or has the notification been released prematurely?
Upgrade is valid. However there can be issues on some hosting servers. Upgrade have a lot of modified files, so there can be issues with upload. Manual upload will help in this situation.