CDS Update 4.0.0 - Release guidance & Declaration Completion Instructions
Prior to the CDS version 4.0.0 update, scheduled for the 25th of March, HMRC has shared a comprehensive list of changes introduced as part of the system update.
This guidance also sets out the completion instructions that declarations will need to comply with post release. The full guide can be found on the HMRC Communications section of the Transitioning to CDS page.
Please be advised that this will affect any declarations pre-lodged prior to release 4.0.0 going live.
In order to prevent rejections upon the implementation of CDS 4.0.0, please ensure that all pre-lodged declarations comply with the listed instructions.