Time marches on and we will soon be saying farewell to another version of the Joomla CMS – the 2.5 long term support (LTS) release. Joomla 2.5, which replaced the 1.5 version a few years ago, will no longer be supported as of 31 December 2014.
If you haven’t already begun, now is the time to plan to upgrade your site to Joomla 3.3 – at the time of writing this article the latest version is 3.3.6. The number format is Major Release.Minor Release.Patch, i.e. the current version is Major Release 3, Minor Release 3 and Patch 6. Joomla 3.3 will be supported until at least September 2016, and you can find instructions for updating your software here.
The most likely difficulties you’ll run in to by updating your version of Joomla are incompatible plugins and possible theme/template inconsistencies. We recommend taking a backup of your site prior to upgrading however if you encounter issues please contact us and we can restore your site from our rolling 7 day backup.
If you remain on Joomla 2.5 your website will continue to function as before however it will no longer be considered secure. In 2015, if a weakness is discovered in Joomla 2.5 then a hacker will be able to exploit it since the developers won’t be providing any more security updates. This might not happen and your website could remain stable for years, however we prefer you to be aware of the risks so you can decide whether to upgrade now or stick with 2.5 and hope for the best.
If you plan to remain with Joomla 2.5 then we suggest improving your website security as recommended by Joomla here.