V2.58 is up
The Brymen BM2257 is the one that EEVBlog starting selling about half a year ago, but the serial interface must be bought elsewhere.
There is a few program improvement: OnTop settings for Gridpanels, ignoring # lines when loading csv
Modified: Appa 505 now has a idstring ID22 instead of 505
Added: Brymen BM2251 & BM2257 DMM (Only 2257 tested)
Added: Kofen GPIB adapter
https://www.eevblog.com/forum/projects/poe-ethernet-gpib-adapter-open-source-project-now-public/ Modified: Loading CSV files will now skip lines starting with #
Update: jSerialComm updated to V2.11.0
Modified: AtorchPX100 to better support DL24M (Thanks EEVloh)
Added: Rigol DHO800 (824) oscilloscope (Thanks zelectronicauy)
Fixed: Advanced readout, StdDiv needed a sqrt() to show correct value.
Updated: Enova Gyrfalcon S8000 advanced cell charger V1.73 (Thanks Enova)
Updated: Enova Gyrfalcon S4000 Pro advanced cell charger V1.73 (Thanks Enova)
Added: GridPanel and SinglePanel supports onTop setting
Fixed: GridPanel Dual readout did not save vertical/horizontal setting.
Fixed/Added: Siglent SDS2104X HD (Thanks KungFuJosh)
Using the Brymen meter to record mains voltage:

The meter can be used on Windows, Linux and Mac.