Changes to solidworks files not applied to PDM vault

I create the drawings , saved them in the folder, checked them in PDM, checked them out to make some changes .However, the date on all drawings still shows 09/2023.When I open the history of the drawings, it clearly shows that I worked on them on May2026.But when I opened PDM again to make additional changes, all parts and drawings appeared as old versions, without any of my updates.

It looks like the changes I made in the SW files were not applied/saved to PDM