You can read more about this release in this blog post
Event Store 5.0.2 Changelog
Authorization Changes
An authorization layer has been added to the HTTP API.
Please read the blog post for more information.
#1962 - (HTTP API) Add an authorization layer to all HTTP endpoints
#223 - (Web UI) HTTP Authorization UI changes
Bug fixes
#1930 - (Core Database) Fix UnbufferedFileStream.SetLength() bug. Please read the blog post for more information about this critical bug fix
#1936 - (Client) Client subscription partition tolerance
Miscellaneous
#1933 - (Client) Enable logging of errors when attempting to discover nodes via DNS or gossip seeds
#1937 - (Client) Refactoring: DRY ClusterDnsEndPointDiscoverer creation (thanks to @bartelink for this contribution!)
#222 - (Web UI) User Details page revamped (thanks to shubham3597 for this contribution!)
#1932 - (Web UI) Prevent browser from invoking Basic Auth login dialog on Chrome
Packaging changes
Packaging Set LimitNOFILE to a default reasonably high value for all distributions running with systemd