7:10 現在更新情報なし
2016/4 の Outlook 2013 更新プログラム KB3114941 を適用すると Outlook 2013 や Lync 2013 (Skype for Business) がクラッシュする - Outlook Support Team Blog JAPAN
Rolling your Office 2013 ProPlus clients back to the March build due to Outlook and Skype for Business crashes - Office Deployment Support Team Blog
April 5, 2016, update for Outlook 2013 (KB3114941)
未更新
Outlook のバージョンは変わっていない
追記
Update – April 29, 2016:
https://blogs.technet.microsoft.com/office_sustained_engineering/2016/04/12/april-2016-office-update-release/
A new build of Office 2013 Click-To-Run – 15.0.4815.1002 – is available now. This build fixes an intermittent crash that may occur in Outlook or Skype for Business (see KB 3158521). To get this build, you can either wait until you are prompted to update, or go to File > Account and select Update Options > Update Now.
5/6 追記
2016/4 の Outlook 2013 更新プログラム KB3114941 を適用すると Outlook 2013 や Lync 2013 (Skype for Business) がクラッシュする - Outlook Support Team Blog JAPAN