> For more details about what’s next for Astro customers, read Astro’s announcement on their website.

What's next? Scrambling to find a replacement email workflow in t minus 15 days and counting ...

There is NO "what's next". The product they are using is disappearing forever. Why are these product shutterings always phrased as a "bold new adventure" for former customers?

> We’d like to thank you, our users, for whom we built this company, and for whom we look forward to serving further as part of Slack.

I realize it is exciting news for the Astro VCs (maybe?) and, again, maybe Astro's employees, but this isn't how you thank someone for being a loyal customer. Apologize for screwing them at least.