July 2021 CU for Office Online Server is available for download

The product group released the July 2021 Cumulative Update for Office Online Server.

The KB article for July 2021 CU will be available at the following Location in a couple of hours:

  • KB 5001973 – July 2021 Update for Office Online Server

The download for July 2021 CU is available through the following link:

Related Links:


  1. Hello, since we are installed the CU all documents just open in Browser…. Is this a known issue


    1. Hi Joachim, I’m not sure I understand the problem. Office Online Server is used to show documents in the browser. So it sounds as if Office Online Server works correct.


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