In October 2013, Microsoft released Update Rollup 4 for System Center Service Manager 2012 SP1. Rollups are a batch of patches and fixes for bugs collected over time and injected into a single update to ensure a product can run as error-free as possible. Very shortly after UR4 was released, it was yanked off the web due to "issues." You can read all that drama HERE.
A little over 3 weeks later it appears that Microsoft now feels that UR4 is, once again, ready for public consumption as it has shown up available for download.
You can get the updated UR4 for Service Manager here: Update Rollup 4 for System Center 2012 SP1 Service Manager (KB2887775)
In seemingly unrelated news, it appears Andy Kaufman is truly dead, after all.