Add date in product release notes and create an interactive release calendar

See https://community.sophos.com/intercept-x-endpoint/f/discussions/131382/sophos-cloud-sophos-has-released-a-product-update---add-information

please add the release date somewhere in the release notes here https://docs.sophos.com/releasenotes/index.html.

This missing information is really important.

A big plus would be to provide some kind of calendar where you can see the days Sophos has released updates. If you click on that day, you can see the component(s) and klick on it which brings you to the matching product release notes.

Here is my suggestion in visible images: