Sébastien

I don't know how to handle migration for existing helm install; The only way I found is to uninstall the helm release and reinstall it. I am curious to know...

I guess it dependends on how your persistent volumes are managed. I my case, with storage-class of kind [openebs-lvm](https://github.com/openebs/lvm-localpv), my pv/pvc are still present after uninstall (I am in testing...

Yes, `/etc/mime.types` is the point for that kind of problem. On my side, I bypass it by just setting `content-type` during file upload. As explain in [mime/type.go](https://cs.opensource.google/go/go/+/refs/tags/go1.21.5:src/mime/type.go;bpv=0), there are several...

I made the changes you suggested, except the last one to set `Hook.Upload` to nil !