Can be found here: http://support.microsoft.com/kb/2929891
List of issues that are fixed:
Issue 1This update rollup makes the stored procedure performance aggregate more robust against out-of-range values.Issue 2Adding multiple regular expressions (RegEx) to a group definition causes an SQL exception when the group is added or run.Issue 3Web applications fail when they are monitored by the System Center Operations Manager 2012 R2 APM agent.Issue 4Service Level Objectives (SLO) dashboards sometimes load in several seconds and sometimes take minutes to load. Additionally, the dashboard is empty after it loads in some cases.Issue 5Operations Manager Console crashes when you try to override the scope in the Authoring pane.Issue 6The System Center Operations Manager console is slow to load views if you are a member of a custom Operator role.Issue 7This update rollup includes a fix for the dashboard issue that was introduced in Update Rollup 1.Issue 8SQL Time Out Exceptions for State data (31552 events) occur when you create Data Warehouse workflows.Issue 9This update rollup includes a fix for the Event Data source.
Operations Manager - UNIX and Linux Monitoring (Management Pack Update)
All IBM WebSphere application servers that run on Linux or AIX computers are not automatically discovered by the Management Pack for Java Enterprise Edition (JEE) if multiple application servers are defined in a single WebSphere profile.
We recommend that you install this update rollup package by following these steps in the given order:
Files updated for the Linux and Unix Monitoring Pack