Hi,
First a suggestion - it would be nice to have a change log in txt format in the firmware zip. The last firmware version is not present in the change log in the manual, because (probably) the manual is still being updated. Having a copy of the change log with the binary file let's you know what's fixed and what to test after updating.
And another thing - the 50MOhm range is currently slow. If it needs to be slow for stability I'm ok with that, but it should be "manual only" range, because it's slowing down all resistance measurements. You don't measure resistance 5-50 MOhms that often - it's ok if it's not included in auto ranging. Or at least have a setup option if it should be included in auto-ranging.
Also the 50 ohm range is redundant. It does not give you any more information than 500 Ohm. When shorting the probes (even the gold coated ones) the last digit cannot show the same result twice (not even close) for measurements few minutes apart, without temperature changes. The short term measurements show difference more than 10mOhms, which makes the last digit useless (and distracting). I think 500 ohm is pretty good compared to other DMMs, although as many other ranges you have to wait few seconds for the last digit to settle. My request is if possible to turn 50 Ohm range off in SETUP.
I'm happy with the DMM - it has few interesting features that are not present on most. Of course you pay the price of low burden voltage - zero offset is drifting all over the pace on most of the ranges. It must be calibrated pretty often. It could be the case with full scale error, but I haven't tested it yet over time. The other annoying thing is that it takes quite a few seconds for the last digit to settle. I haven't tested this since fw 1.26 - ohms still settles slow. On most of the other DMMs I have the digits stop moving withing 1 second, even the cheap Chinese ones ($40). I think there is something wrong with the filtering on some ranges.