Dear GrandNode community!

We are happy to announce official release of GrandNode 4.20.

In the new version, we continue to improve performance of GrandNode. We've also added knowledge base, push notifications system based on Firebase. We provide some feature in customer management to give possibility our users to meet the EU GDPR requirements. List of changes is longer than the first the most important changes, you can check it there:
https://github.com/grandnode/grandnode/releases/tag/4.20