I have received a letter from HMRC this week stating that because I have been submitting VAT returns using XML in the past, that from 8th April 2021 this will cease to be possible. As I have always been using the VAT return submission routine in QB Desktop (current installation is QB Desktop 2020), I don't see why this should be. Is this a potential issue that will be addressed by a future update to QB2020, or is this something that the developers will need to address as a matter of urgency?