This month, it was discovered a last minute issue that could impact some customers and was not resolved in time for the planned updates as usual.
After considering all options, it was made the decision to delay this month’s updates.
The next update cadence is the planned March Update Tuesday, March 14, 2017. as of now.
Please See the official blog on MSRC: February 2017 security update release for any updates.
[Update: Febr. 22nd]
Opposed to what the above MSRC post states,
We also have published server (SharePoint and Project Server) updates that did not contain new MSRC security fixes.
So we have released the following updates:
Project Server 2013
PUs for SharePoint target a release date of the second Tuesday of each month. These are generally security and server fixes.
Next PU is March 2017, targeting a ~March 14, 2017 release date.
All previous released PUs for SharePoint can be found here: https://technet.microsoft.com/en-us/library/dn789211%28v=office.14%29.aspx.