Microsoft has released a new insider PC build for fast-ringed Insiders today which includes a number of new features and enhancements over the last public preview build. Today's release is build 14316, and has just started rolling out so if you can't see the new build just yet, don't worry as the update is still propagating through Microsoft update servers.
This new build doesn't include the new Action Center or Start Menu improvements unfortunately, but it does include web notifications for Edge, however they need to be enabled via the about:flags area. Cortana also has an option to sync notifications between PC and phone, however it is unclear if it works just yet.
The Windows 10 Anniversary Update is coming this summer with new features and improvements, with more features coming in a second update slated for Spring 2017. In the meantime, are you planning to download this new build? Let us know below!