As mentioned in my previous post What’s SCCM Current Branch, Microsoft plans to release updates for Configuration Manager current branch a few times per year. For versions of Configuration Manager released prior to 1710, support was for 12 months. Beginning with version 1710, each update version remains in support for 18 months from its general availability release date. Microsoft provides technical support for the entire period of support.
There are two distinct servicing phases that depend on the availability of the latest current branch version.
Security and Critical Updates servicing phase – When running the latest current branch version of Configuration Manager, you receive both Security and Critical Updates.
Security Updates (Only) servicing phase – After the release of a new current branch version, Microsoft only supports security updates to older versions for the remainder of that version’s support lifecycle
Below graphic from Microsoft explaining how they support SCCM Current Branch Versions. Read about the support end date of the prior version of the following Microsoft TechNet article.
