Microsoft 365 Developer Blog

A developer platform for building collaborative apps for hybrid work

Microsoft Edge WebView for Office Add-ins

May 20, 2019 May 20, 2019 05/20/19

Office Add-ins team

Beginning with Office 365 version 16.0.11629 and the first 2019 Windows 10 update, Office Add-ins running on Office 365 for Windows will use an Edge WebView as the runtime.

[Outlook add-ins] Check certificate if mailbox.getCallbackTokenAsync starts returning “An internal error has occurred”

May 9, 2019 May 9, 2019 05/9/19

Office Add-ins team

Renewing your SSL certificate may help you resolve "An internal error has occurred" errors returned by mailbox.getCallbackTokenAsync.

Office Extensibility: Build 2019

May 6, 2019 May 6, 2019 05/6/19

Office Add-ins team

As thousands of developers arrive in Seattle for the Microsoft Build conference, we’re excited to share with the community what we’ve been working on in Office Extensibility. We’ll also be sharing news about Microsoft 365, Microsoft Graph, and Microsoft Teams in separate blog posts.

Microsoft 365 at Build 2019 – the guide

May 3, 2019 May 3, 2019 05/3/19

Microsoft 365 Platform team

If you are attending Microsoft Build in Seattle or watching virtually, you can use this guide as a way to stay current on all the sessions, stories, and information from Build. Check back during the event for updates as they become available.

New Microsoft 365 Developer Program benefits for Visual Studio subscribers

May 3, 2019 May 3, 2019 05/3/19

Michael Aldridge

Office 365 Developer Program now offers integrated benefits with Visual Studio Professional and Enterprise. Your paid subscription in both programs grants you a free renewable Office 365 Developer subscription with up to 25 users.

Announcing some exciting Script Lab improvements

April 17, 2019 Apr 17, 2019 04/17/19

Office Add-ins team

Announcing some exciting Script Lab improvements! We've made some improvements to the Script Lab add-in that we want to let developers know about.

New renewable Office 365 developer subscriptions launch on April 3rd

April 9, 2019 Apr 9, 2019 04/9/19

Michael Aldridge

Office 365 developer program announces a new renewable developer subscription. On April 3rd, we moved to a new model that enables a perpetual renewal of your developer subscription. Now, you can get a free Office 365 developer subscription with 25 user licenses to use to build your solutions and it will remain active for as long as you’re actively developing and deploying solutions. No more rip and replace after one year.

MSAL.NET 3.0-preview now available

March 21, 2019 Mar 21, 2019 03/21/19

Microsoft identity platform team

We are excited to announce the release of MSAL.NET 3.0-preview, which has a number of changes that will improve your experiences. Since our release of MSAL.NET 2.0-preview in August, we’ve been receiving great feedback from the community. Since August we’ve released fourteen incremental updates of MSAL.NET, improving both the API and the behavior of the library. You’ve been awesome helping us make MSAL.NET a great authentication library, but you also told us that things could be improved upon.