Ssis858 - 4k Upd

Assuming SSIS 858 refers to SQL Server Integration Services with a new version or update, maybe related to 4K UPG. What does 4K UPG stand for? Could it be "4K Ultra HD Upgrade"? If so, this might involve upgrading display outputs or video processing capabilities. Alternatively, it could be an abbreviation related to storage, like 4K block size upgrades or data transfer rates. I need to check possible meanings.