@Katherine (WMF) congratulations as interim ED of the Wikimedia Foundation. You have a Flow enabled user talk page here. Cross wiki notifications have launched today. You probably received a notification after visiting another wiki. Enjoy your flow!
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I did, thanks @Ad Huikeshoven! Cross-wiki notifications are the best, barnstars for the whole collab team! And I will enjoy the flow :)
I'm deliriously happy about this for several reasons!