So far April’s patches aren’t causing too much harm. [But it is still early!] Here is a run-down.
KB2889923 update for Lync 2013 (Skype for Business) will do a number on users who are running Outlook 2010. While not a common combination it will cause some problems in larger companies. In April, a small batch of updates including this one will convert your Lync 2013 client to Skype for Business. There are already a batch of smaller issues for Skype for Business.
KB2990214 clobbers servers running Windows Server 2008 R2 with SQL Server Reporting Services (SSRS). The SSRS service fails to start after this update.
KB3013769, which is the December 2014 rollup for Windows 8.1 and Windows Server 2012 R2 has been re-release but optionally. The bug lies with [primarily] Windows 8.1 systems with Kaspersky security software installed. Some customers reported not being able to install the rollup, while others kept receiving error messages of SYSTEM_THREAD_EXCEPTION_NOT_HANDLED (kl1.sys). The latest update was only available via the Windows Catalog at this time.
KB2990214 has been re-re-released to fix the future option of upgrading from Windows 7 to Windows 10. Of note the knowledge base says it won’t allow Windows Server 2008 R2 to upgrade to Windows Server 2016 when released. The latest update was only available via the Windows Catalog at this time.
When and if there are updates and further issues, they’ll be mentioned here or check the KB.
Oh ya. As of this month, if using Office 2013 and/or Exchange Server 2013, note that you will need service pack 1. Since Microsoft doesn’t seem to be releasing service packs anymore, dying editions won’t by much of an issue.
[Update: 2015/04/17:] Surprisingly no other issues reported. One little minor thing. When you install KB3035583, you will note that it says it improves Windows Update notifications. But what it also does is when Windows 10 is officially released, a pop-up box [or annoying box] will pop-up informing you that Windows 10 is available for you to upgrade. lets hope there is an option to turn off on delay reduce the number of pop-ups in a day.
[Update: 2015/04/30:] If you perform a clean installation of Windows 7 or Server 2008 R2 and then upgrade to IE11 from IE8 at the same time of installing MS15-032 for IE8 with the 150+ other updates, you will receive error code 80092004 when trying to use Windows Update. Temporary workaround is to install all updates except MS15-032 and IE11 and then MS15-032 for IE11 once IE11 is installed. Microsoft knows of the issue. In addition the update for Windows Server 2003 has been replaced.