Here are some of the improvements in Nutanix Foundation 3.7 which was released on Feb 27, 2017.
Reorder of Blocks via Drag n Drop
You can now reorder blocks so that they are in the desired positions whilst keeping the IP addressing sequence intact. This is especially useful for large deployments.
Clicking ‘Reorder Blocks’ will show a drag n drop popup
A demo video illustrating the effects of reordering blocks (thanks YJ for the video):
IP Sequencing
Instead of automatic increments of IP addresses by 1, you can use a ‘+’ operand to create the sequence you desire. See below for an example.
Using +2 to auto fill every 2nd IP address in the sequence
Timezone support
You can now optionally select the timezone for your cluster at the Global Configuration page.
Timezone support
Image Selection Page Improvements
The Image Selection Page no longer forces you to upload a new images and instead use the ones already on the detected nodes. You can also add/delete ISOs from the UI.
Image Selection Page Redesigned
Updating Foundation from UI
You can now use the UI to upload a Foundation tarball and update Foundation itself when new versions are available. It is highly recommended to always use the latest version, so it is easier to update. You can get the latest release notes and Foundation files from the Nutanix Support Portal.
Summary
This is a great release by the Foundation Engineering team at Nutanix with over 70 bug fixes and improvements such as the above included. There are several exciting features coming in future releases (approximately every month) so always check the Nutanix Support Portal for the latest updates. If there is a feature you’d like so see, feel free to contact me.
Invisible Infrastructure 
When are we going to be able to set management vlan tags as part of the foundation process?
If you mean as part of the UI then it is being investigated. Currently, you have to use the network configuration tool via CLI – details in the “Discovering Nodes in a VLAN-Segmented Network” section of the Foundation Field Installation Guide PDF on the Nutanix Portal.
Where on the support portal can we download the Foundation 3.7 tarball?
You need to have been given access to it in the downloads section – ask your local SE to see if you can get access.