The 2021 version of the A2C specification has been published today.
This does not affect the A2C Migration Application.
This is the version that will be used for the VQ pilot from September 2021.
If you are a centre with a commercial MIS system your supplier will be implementing A2C and will notify you when an upgrade is available. Only centres with their own ‘homegrown’ systems need to implement A2C themselves.
The spec can be downloaded from here.