Hello, I am upgrading from MediaWiki version 1.16.4 and would like to go to the latest stable release 1.27.
I was wondering if I can upgrade straight to 1.27 or if I need to upgrade through the other versions first?
The sever is running Ubuntu 11.04 which I plan to upgrade to 16.04.
It is running PHP 5.3.5 which I will be upgrading to 5.6
MySQL 5.1.63
Hi!
You can upgrade to 1.27 directly, there are no versions, which you have to take in between.
Note that MediaWiki 1.27 needs PHP 5.5 at least. On your old system with PHP 5.3, you only can use MediaWiki 1.26. So I would first upgrade PHP (which might make MW 1.16 non-functional at that point) and then upgrade MediaWiki to 1.27 in one go.
A complete guide is at Upgrade! If you have further questions, don't hesitate to ask!