Hello All,
My Firmware Upgrade subscription with Rigol just notified me of a packet of updates which, for the DP800 and the DG5 series, included Bootloader updates, required to install those FW versions.
I have a tingling suspicion they may have combated some of the sniffing going on, although I have no real proof of this yet (I haven't the time this week to flash any of my devices and see if anything changed), but I wanted to just send this information out into the world.
I'm only "subscribed" to DG5-series, DS1Z-series, DS4-series, DSA815 and DP800-series, so there may be more that get the new bootloader. Undoubtedly rolling back FW with that new bootloader will be nigh impossible again.
You guys can do with it what you will. (In terms of buying to be ahead of new units having the bootloader, or just being careful with which updates you do and do not install).