List of WinRM related hotfixes for post RTM for Windows 8.1 and Windows Server 2012 R2.

Applies to:
Windows Server 2012 R2
Windows 8.1

Note:  You should check for the latest version of the different files.
Note 2:  These are not available in Windows Update.

Note 3:  You can download them without entering your e-mail address and captcha if you are a Microsoft Premier customer and have a account.

Note 4:  Carefully review the list and decide which might be applicable to your unique environment.

Note 5:  Test in your test and your quality assurance environment.

Note 6: Windows Hotfixes and Updates - How do they work?

Note 7: How to Forcibly Install the LDR Branch from a Particular Hotfix Package

Note 8:  To learn more about OS Patching Guidance for Window 8.x and Windows Server 2012 x, check out my peer Robert Smith's blog post:
OS Patching Guidance for Windows 8.x and Windows Server 2012 R.x

Note 9:  Remember Update Rollups are not cumulative, so later updates do not necessarily have fixes from previous updates.  My peer Steve Mathias wrote a nice blog post here:
Update Rollups For Windows Server 2012 and Windows 8 Explained

Note 10:  Most of these are not a part of the Windows 8.1 or Windows Server 2012 R2 update rollups.  My peer Chad Schultz has a nice list here of the rollup updates:
Current Windows Server 2012 / R2 & Windows 8 / 8.1 Update Rollups

List of WinRM related hotfixes post RTM for Windows 8.1 and Windows Server 2012 R2 as of Apr. 2015:

Originally published:  Apr. 2015.   Updated Apr. 2015.

2985459 The W3wp.exe process has high CPU usage when you run PowerShell commands for Exchange
Wsmagent.dll    6.2.9200.16384
Wsmanhttpconfig.exe    6.2.9200.16384
Wsmanmigrationplugin.dll    6.2.9200.16384
Wsmauto.dll    6.2.9200.16384
Wsmplpxy.dll    6.2.9200.16384
Wsmprovhost.exe    6.2.9200.16384
Wsmres.dll    6.2.9200.16384
Wsmsvc.dll    6.2.9200.21178
Wsmwmipl.dll    6.2.9200.21178

2974313 A domain controller freezes when an event subscription manager list is long in Windows
2969050 Windows Management Framework 5.0 Preview September 2014