Hi , Welcome to MS Q&A
Release date of this SKU On Azure batch nodes is not yet certain or confirm
But I would recommended to monitor the Batch Node Agent release notes to understand changes to new Batch node agent versions. Checking regularly for updates when they were released enables you to plan upgrades to the latest agent version.
Fyi, latest support added on batch is for 22.04 , please check below Image and URL for more detailed information
https://learn.microsoft.com/en-us/azure/batch/best-practices
kindly accept answer if it helps, please let us know if any further questions
Thanks
Deepanshu