Dreame X50 Ultra Complete Firmware History

Based on my own research, here’s a list of firmware versions I’ve come across so far. I'm not sure if there are others that have been released:

4.3.9_1573
4.3.9_1651
4.3.9_1749
4.3.9_1819
4.3.9_1911
4.3.9_2044

If Dreame Support could share the changelogs for these versions (and add any missing versions so far), it would help us understand the full improvement history and evolution of the product.

I’m on 4.3.9-1651 still no new update

Same here the same on mine

Sorry, I can't provide you with detailed introduction of each firmware version update at the moment.
But don't worry, we have already fed back your suggestion to add introduction in each firmware version update to the technical department.

4.3.9_2033 ruined my Dreame X50 ultra, it does not mop anymore.

4.3.9_1911 for me the last 🙄

Why do some of uss still have 1911

in the robot X50 ultra I have 4.3.9_1911. why?
Are there different versions based on different situations? Anyone know anything?

From my own experience, version 2044 includes number of regressions and significant bugs. I went back to version 1911 which is much more satisfactory.

The main regression is related to the height it can clean below a furniture. After the update, my X50 couldn't clean below a table at 13/14 cm anymore. I also had a couple of occurences it couldn't go back to the station. Never happened before in 2 months of daily cleaning. All that went away when I got back to 1911.  To go back to previous version, you need to ask Dreame. It took me one week of repeated requests to get it done. Painful.