Hi Kaniz - I checked and it's a bit confusing, as far as I know delta version is attached to cluster runtime and we've been upgrading that over time - we've been at 12.2 for a while but now we're up to 13.3 LTS. The really strange thing is today I decided to clone the table, and the cloned table is literally maybe a dozen files. I'm still not sure what all those residual files are but perhaps they are left over from something that happened in the past - anyways I think we're going to re-clone over the weekend and switch our pipeline to the new table and see how it goes.