can I go back to previous version, I hate this new one

Persons name no longer shows on incoming messages

I’m not sure what you mean by names not showing on incoming messages.  It certainly does for me.  Can you supply a screenshot?  If yo mean, you do not want to see the address, then go to menu/tools/settings/mail/read and uncheck “Show email addresses in email header”.  After this, only the name will show.