<!-- Add the related story/sub-task/bug number, like Resolves#123, or
remove if NA -->
**Related issue:** Resolves#42503
# Checklist for submitter
If some of the following don't apply, delete the relevant line.
- [X] Changes file added for user-visible changes in `changes/`,
`orbit/changes/` or `ee/fleetd-chrome/changes`.
See [Changes
files](https://github.com/fleetdm/fleet/blob/main/docs/Contributing/guides/committing-changes.md#changes-files)
for more information.
## Testing
- [X] Added/updated automated tests
- [X] QA'd all new/changed functionality manually
- [X] setting `software:` under `macos_setup` or `setup_experience`
triggers the expected warning.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Deprecations**
* Using setup_experience.software or macos_setup.software now emits a
deprecation warning. Migrate by setting setup_experience: true on
individual software items (packages, App Store apps, or fleet-maintained
apps).
* **Tests**
* Added test coverage to verify the deprecation warning is emitted when
applicable and absent otherwise.
[](https://app.coderabbit.ai/change-stack/fleetdm/fleet/pull/44549)
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
