Veeam is happy to provide a free NFR license (for 1 year, up to 10 users). This license allows for the non‑production use of Veeam Backup for Microsoft Office 365 in your home lab without any feature limitations.
Microsoft has released remote PowerShell capabilities to all commercial Office 365 customers. So you can be controlled via PowerShell and not from the Office 365 admin center
Download Windows PowerShell Module for Lync Online
Experts-Exchange users below are the steps you can follow to upgrade your Lync server to latest CU's or cumulative updates.
Note: Perform it during non-production hours.
Step 1: Backup your lync and SQL server database. Follow below article:
I've attached the XLSM Excel spreadsheet I used in the video and also text files containing the macros used below.