Is SW 4.60 the latest firmware for the Vivosmart HR?

As per title, is 4.60 the most up-to-date firmware for the Vivosmart HR?

I know its an older device, but it's developed some interesting issues recording running and walking in different distance units, although still being logged as mph. In other words, runs are being recorded at their higher number km distance equivalent, even though the device is set to mph.