## Change Summary

* #7811 - make sure specification for `__pydantic_fields_set__`, `model_fields_set`, and `exclude_unset` is consistent (in docstrings + docs)
* #7588 - adding explanation for changes to `model_rebuild` vs `update_forward_refs` to migration guide

## Related issue number

Fix #7811
Fix #7588

## Checklist

* [x] The pull request title is a good summary of the changes - it will be used in the changelog
* [x] Unit tests for the changes exist
* [ ] Tests pass on CI
* [x] Documentation reflects the changes where applicable
* [x] My PR is ready to review, **please add a comment including the phrase "please review" to assign reviewers**


Selected Reviewer: @dmontagu
Docs update: keeping model_fields_set defs consistent and adding explanation for model_rebuild changes. ## Change Summary

* #7811 - make sure specification for `__pydantic_fields_set__`, `model_fields_set`, and `exclude_unset` is consistent (in docstrings + docs)
* #7588 - adding explanation for changes to `model_rebuild` vs `update_forward_refs` to migration guide

## Related issue number

Fix #7811
Fix #7588

## Checklist

* [x] The pull request title is a good summary of the changes - it will be used in the changelog
* [x] Unit tests for the changes exist
* [ ] Tests pass on CI
* [x] Documentation reflects the changes where applicable
* [x] My PR is ready to review, **please add a comment including the phrase "please review" to assign reviewers**


Selected Reviewer: @dmontagu
::: pydantic_extra_types.country

::: pydantic_extra_types.country
