Typo3 6.2 LTS升级到7.4版

Question

Current Version: 6.2.9 LTS Upgrade to: 7.4.0

Server Enviroment:
PHP 5.4.44-0+deb7u1 (cli) (built: Aug 16 2015 09:51:53)
Zend Engine v2.4.0
System:         Linux servername.local 3.18.9-x86_64-jb1 #2 SMP Wed Mar 25 16:07:36 CET 2015 x86_64
Server API:     FPM/FastCGI
Server Software:    nginx/1.6.2
mysql  Ver 15.1 Distrib 10.0.21-MariaDB, for debian-linux-gnu (x86_64) using readline 5.2

Haven't upgraded a Typo3 installation before. Based on the information, do you recommend to update or should I wait for a new LTS version? On the other hand, do you have an advise to do a full upgrade for the server environment including nginx, PHP, mariaDB and Typo3 as well? It's no problem to upgrade each package manually, because I have root privileges. Also a manual dupgrade for Typo3 is possible.

Thank you very much.

Answer 1

TYPO3 version 7 requires PHP 5.5 at least (see Download page). So you can't upgrade using that server setup.

Answer 2

Short version:

If you do not need some feature available in 7+ right now, you don't need to upgrade.

Longer version:

For sure you should try upgrade "at home" first - not in production, to identify points of failure and avoid them. TYPO3 ver. 7 doesn't bring big feature-set, it's rather planned cleanup branch. Of course changes in Backend layout and performance is noticeable, but from my point of view (experienced, heavy user/developer of TYPO3) there's no bigger reason to upgrade stable 6.2 LTS installation ASAP. Must say that at the moment (summer 2015) I'm still starting new projects with latest LTS.

Keep in mind that TYPO3 ver. 7+ removes old fashioned classes (ie t3lib_* ) which where marked as depreciated in 6.x and where used by ma(aaa)ny years in many (most) of public extensions, so before upgrading you need to check one-by-one if these exts are prepared for 7-th version of CMS (for an example extension_builder , my every-day tool is not ). There is big chance that you'll find at least several points which will require manual fixing (see: typo3/sysext/core/Migrations/Code/LegacyClassesForIde.php file in your 6.x installation).

Finally when you'll start upgrading remember to upgrade by minor versions ie 6.2 > 7.0 > 7.1 > 7.2... etc, according to upgrading docs .