Joomla! Certification Program™As a Joomla! administrator you must be able to upgrade Joomla! and the Joomla! extensions, and know the defference between Major, Minor updates. Learn more about upgrading your system.
- Upgrade Joomla core patch
- Upgrade the extensions
- (oneclick upgrade or manually)
- Reversion of Upgrade possible?
- Difference between Major, Minor and Maintenance updates, and what impact they have.
- Check your resources for new updates of Joomla! core and extensions.
https://www.joomla.org/announcements.html
(Check compatibility, Schedule upgrade, Prioritizing security issues.)
https://docs.joomla.org/J3.x:Updating_from_an_existing_version