What is the latest firmware for the YEELIGHT Lighstrip Plus 1s?

Currently I have the version 2.1.7_0018 (version that is giving me many problems) as for example it is impossible to turn off the lights because it is only changes to red color also that the color cyan does not work because it appears in violet color and I would like to know if there is any beta firmware that might fix this problem.

My YEELIGHT ID : 1761909466
Server : Europe and Africa (Frankfurt)