As you know, the UK left the European Union on 31st January 2020 and is now in a transitional period where current rules still apply. This comes to an end at 11pm on 31st December.
Our schema changes will automatically come into effect once the transition period ends on the above date.
The effected schemas are as per this link (these as you know have been available for some time):
The only addition is a new v3.5 incorporation schema that takes into account the Memorandum of Association changes which we are mandating next April (schema and example as follows):