# Description

This PR makes the necessary app file and extension setting changes to
support backwards compatibility, but there are still changes required in
the code to have full backwards compatibility with Isaac Sim 4.5 that
will come in other PRs.

Running with Isaac Sim 4.5 requires passing --use_isaacsim_45.

## Type of change

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applicable. -->

- Bug fix (non-breaking change which fixes an issue)

## Checklist

- [x] I have run the [`pre-commit` checks](https://pre-commit.com/) with
`./isaaclab.sh --format`
- [x] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] I have added tests that prove my fix is effective or that my
feature works
- [ ] I have updated the changelog and the corresponding version in the
extension's `config/extension.toml` file
- [ ] I have added my name to the `CONTRIBUTORS.md` or my name already
exists there

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