I did post this in a reply about a week ago in a topic:
Here is a rough change log so you can get an idea of what it includes. As you can see it's quite a beefy update, hence why it took longer than the previous ones.
Addition of Hybrid VPN
Improved SmartBOOST performance
Various frontend improvements
Fix for memory leak (sometimes manifesting as being unable to access the interface)
Potential fix for "frequent disconnects" issue
Chromecast and local transfers fixed (this is the WiFi bug where devices can't communicate with each other when they're connected to the same WiFi band e.g. 2.4/2.4GHz)
Fix for "No Internet Detected" bug in Setup Wizard
IPv6 PPPoE now works with SmartBOOST
Ping Optimizer reliability improvements
UPnP Improvements
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