Microsoft 365 Developer Blog

A developer platform for building collaborative apps for hybrid work

Ignite 2019 Guide to the Microsoft 365 Developer Platform

As we close in on the last few days until Microsoft Ignite 2019 in Orlando next week, November 4-8, the Microsoft 365 Developer Platform team is working diligently to put the finishing touches on our sessions and preparing to meet you all at the Hub to chat in person. We have some exciting things in store for you.

End of support for Basic Authentication access to Exchange Online API’s for Office 365 customers

Today, we are announcing that on October 13th, 2020 we will stop supporting and retire Basic Authentication for Exchange Active Sync (EAS), Post Office Protocol (POP), Internet Message Access Protocol (IMAP), and Remote PowerShell (RPS) in Exchange Online. This means that new or existing applications using one or more of these API’s/protocols will not be able to use Basic Authentication when connecting to Office 365 mailboxes or endpoints and will need to update how they authenticate.

New Microsoft 365 E5 subscription with EMS now available for developers

Starting this week, all new members of the Office 365 Developer Program (including Visual Studio Professional and Enterprise members) can sign up for a Microsoft 365 E5 developer subscription (Windows not included). This replaces the Office 365 E3 developer subscription that we made available starting in March 2018.