Hello Toby,  I hop you are well, this is the latest information I have:  8.1(1a) – Support FICON for FCIP blade. Target GA date is 04/30/18, however this can be subject to change.  Thanks and rgds,  Jim.
Bank of America is inquiring about this level of Cisco NX-OS.  But it does not appear to be certified by Dell EMC yet. Will this version be certified, and if so is there an ETA of the GA date?
Will Dell EMC certify and release NX-OS v8.1(1a)