> it's using EWS (Exchange Web Services) which is being removed in October 2026 for Office36

This is Microsoft we're talking about here, so if its slated for removal in Oct '26, it will be put into LTS, and finally 'retired' (but operational) _starting_ around 2031.

▲ stackskipton 4 hours ago | parent [-]

Microsoft swears it's happening: https://techcommunity.microsoft.com/blog/exchange/retirement...

Take the blog article for what you will. I have noticed in Office365, they tend to be less backward compatible than you would expect from Microsoft.

▲ godelski 4 hours ago | parent | next [-]

  > Microsoft swears it's happening

And when has that ever meant it comes without delay?

	▲	stackskipton 4 hours ago \| parent \| next [-]
		Up to you if you believe Microsoft or not. I don't really care, I haven't messed with 365 outside being end user in years.
	▲	dijit 2 hours ago \| parent \| prev [-]
		to be fair with you, EWS has been deprecated since I think 2014, so we're already in the "pushed" window.

▲ ocdtrekkie 4 hours ago | parent | prev [-]

As an on-prem admin, I am blown away that there's 30-40 changes to 365 monthly, often including at least two or three feature deprecations. It seems like building a building on top of quicksand.