Platform Newsletter - December 2025
Published December 4th, 2025
It’s December — the season of twinkling lights and exciting updates! ✨ As we close out the year, we’re spreading the holiday cheer with little tidbits of Slack developer know-how that’ll make your developer heart a little warmer. Think of this newsletter as your gift that keeps on giving. 🎁
December hits different for developers — some of us are racing to ship before the holidays 🧑🏻💻, others are finally taking that well-deserved break. ☕ Wherever you are in your journey this month, we’ve got updates and inspiration to match your pace. No pressure, just possibilities. ✨
So find your comfiest spot, take a break from the holiday hustle, and let’s see what we’ve got for you. 🌨️💜
What is a surface in Slack?
Slack surfaces are the places within a Slack app where you can interact with users. A few types of surfaces include messages, modals and canvases – each suited for a different kind of user interaction. When used correctly, these surfaces allow developers to create powerful, intuitive workflows that integrate seamlessly into the way people work on Slack.
Bringing App Home for the Holidays
By leveraging the App Home surface in Slack, developers can move beyond generic apps to deliver a customized, hand-crafted experience for their users, providing a more personalized and useful space that is a true gift for the holidays. 🎁
FAQ: Slack’s Marketplace review process
The Slack Marketplace is where you can find apps that integrate the tools you already know and love into Slack. All apps available in the Slack Marketplace have been reviewed and approved by the Slack Marketplace team. Read further to find out how you can have your app on the Slack Marketplace!
🎄 Join Our Slack Countdown to the Holidays! 🎁
We’re spreading some festive cheer this December with a special countdown on slack.dev! Starting December 1st, we’ll be sharing daily surprises to help you count down to the holiday season—think fun tidbits, app ideas, lesser-known features, and maybe a few surprises along the way.
Each day, check our 24 days of building with Slack series for a new post that’ll bring a little joy to your workday. Whether it’s a quick laugh, a moment of gratitude, or a fun team activity, we’re here to make December a bit brighter.
Mark your calendars and join us as we celebrate the season together—one day at a time! 🌟
Warm & Toasty Features ☕
Search Answer Sharing
We just rolled out our new ability to share AI search answers directly into channels and DMs! Share any AI search answer directly into a conversation, no screenshots, no copy/paste. You can do this by asking a question to Slack AI and clicking the share button in the bottom left corner. Shared answers become normal messages, making them easy to reference or thread on later.Shared Channel Sections
Have you ever had a teammate onboard and wished you could just send them your nicely curated channel section with all the team’s channels? We are rolling out the ability to share your channel sections! All you have to do is right click your customized channel section and click the three dots and select “share section”. Then decide who to share them to, edit which channels will be shared and add a little personal touch in a custom message.
Time for you to shine in the spotlight!
Built something awesome with Slack? Let’s unwrap it and give it the spotlight it deserves! 🎁 We’re always listening for inspiring apps, clever workflows, and creative builds from our community to share and celebrate this season. ✨
📬 Share your project at technewsletter@slack-corp.com — you might see it in our next spotlight!
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