Upgrading from 4.5 to 9.2 - the most up-to-date way?

Showing live article 1720 of 24468 in channel 51395346
Article Details:

Author: invalid@example.com (Francesca)
Language: English
Channel Number: 51395346
Article Number: 1720
Date: December 8, 2015, 10:50 am
URL: https://gbatemp.net/threads/upgrading-from-4-5-to-9-2-the-most-up-to-date-way.405294/
GUID: https://gbatemp.net/threads/upgrading-from-4-5-to-9-2-the-most-up-to-date-way.405294/