Missing MAC TX/RX and New SNMP MIBs with 2.8.0?

So, upgraded to 2.8.0 noticed two things:

Missing mac TX/RX which makes it a bit hard to judge how links performing vs the older B5 1.5.1 firmware which while phy may of been fine mac sometimes took a huge dive indicating an issue.

Also noticed a bunch of our nagios checks started failing, especially ethernet port status now returns No valid data returned (Such Instance currently exists at this OID). Is there a new MIB for the SNMP in 2.8?