According to MNI News, citing an expert advising the Chinese government

They're certainly keeping their bullets close to the chest for the time being but you can argue that there has been a subtle change to their approach to trade talks than in the past. Previously, China has never really weakened the yuan in the build-up to negotiations but today, the PBOC noticeably settled on a higher USD/CNY at the fixing this morning.

(h/t @ Anthony Barton for the headline)