First digital yuan ATMs are officially deployed in China, Shenzen. People can exchange between yuan and the digital yuan, and vice versa. Currently, only a limited number of machines operate, but this phase may be the final phase before the public, nation-wide starting.
Among the bigger countries, China has the most advanced central bank digital currency. Last year they made an open test, also in Shenzen. So now they have experiences, which could be useful in the ongoing testing.