SFP link flapping with a standard SM gigabit module in a hEX S (RB760iGS)
Have downgraded back to 7.2.1 for now.
Other RB's not using SFP's have been upgraded OK to 7.2.3
:put [/ip address get value-name=address [find interface=ether1]]
upgrade - improved "long-term" upgrade procedure on SMIPS devices