A lot! While this is only a release candidate as we finalize the next major version of web-api, v7, you can give it a go while we put the final touches on it.
We have also prepared a migration guide for those worried about what has changed and how to migrate from v6.
For the full list of changes, please take a look at the migration guide.
To install and give it a whirl, simply:
npm i @slack/web-api@rc
Your feedback is incredibly valuable to us! If you do give this release candidate a try, first: thank you! Second, if you find any issues or have trouble using it, please let us know by filing an issue.
Fetched April 3, 2026