The reason is that there has not been any cases for over a week (my wife told me).

My wife took the bus and train this morning and confirmed that the covid test is not required. The exception are employees of the train and bus company and I guess some companies.

It's not needed as of 9-18

Here's the link.

m.toutiao.com/[...]

No need to check nucleic acid in Kunming subway from now on. Today measured the Kunming No. 3 line, line 4, line 5 station, did not let the production of nucleic acid. According to the regulations, from September 18, the bus and subway only require employees to hold the negative proof of nucleic acid test within 48 hours, passengers are recommended to do daily self-monitoring, at least once every 7 days to do nucleic acid testing.# Kunming #