A fresh update that should be good news to many is now rolling out to the Slack beta for Windows Phone. While the update doesn't contain much of note, it does fix a rather nasty bug that would prevent the app from opening for some users on Windows 10 Mobile.
Here's the official word on what's new in Slack beta version 2016.913.0.0:
Fixed: some users who weren't able to launch the app on Windows Mobile 10 devices now are. Sorry about that.
And that's all she wrote, folks. You should be able to grab the latest update from the Windows Store now. If you were experiencing the bug mentioned in this update's notes, let us know in the comments if the app is indeed working for you once again.