Upgraded to 3.16 on a 333 and snmp voltaging is now broken. Downgraded it and it works again.
hmm ok we will check. anyone else see this?
we are missing .1.3.6.1.4.1.14988.1.1.3.8.0 too 
Error in packet
Reason: (noSuchName) There is no such variable name in this MIB.
we are using 433AH
Edit:
SNMP voltage doesnt work in 3.7 @ 433 (it does in 3.7@333)