v1.3.6 - [2024-12-02]

• Avoid using kernel overlayfs when the lower layer is a sandbox on an incompatible filesystem type such as GPFS or Lustre. For those cases use fuse-overlayfs instead. This fixes a regression introduced in 1.3.0. The regression didn't much impact Lustre because kernel overlayfs refused to try to use it and Apptainer proceeded to use fuse-overlayfs anyway, but with GPFS the kernel overlayfs allowed mounting but returned stale file handle errors.