# Upgrade and migration guides

To upgrade Nutrient in your app, select the desired guide from below. For a general overview of the upgrade process, see our [upgrading guide](https://www.nutrient.io/guides/flutter/migration-guides/upgrading.md).

- [Nutrient 5 migration guide](https://www.nutrient.io/guides/flutter/migration-guides/flutter-5-migration-guide.md)

- [Nutrient 4.2 migration guide](https://www.nutrient.io/guides/flutter/migration-guides/flutter-4-2-migration-guide.md)

- [Nutrient 4 migration guide](https://www.nutrient.io/guides/flutter/migration-guides/flutter-4-migration-guide.md)

- [Nutrient 3.12 migration guide](https://www.nutrient.io/guides/flutter/migration-guides/flutter-3-12-migration-guide.md)

- [Nutrient 3.9 migration guide](https://www.nutrient.io/guides/flutter/migration-guides/flutter-3-9-migration-guide.md)

- [Nutrient 3.6 migration guide](https://www.nutrient.io/guides/flutter/migration-guides/flutter-3-6-migration-guide.md)

- [Nutrient 3.3 migration guide](https://www.nutrient.io/guides/flutter/migration-guides/flutter-3-3-migration-guide.md)

- [Nutrient 3.2 migration guide](https://www.nutrient.io/guides/flutter/migration-guides/flutter-3-2-migration-guide.md)

- [Nutrient 3 migration guide](https://www.nutrient.io/guides/flutter/migration-guides/flutter-3-migration-guide.md)

- [Nutrient 1.10.4 migration guide](https://www.nutrient.io/guides/flutter/migration-guides/flutter-1-10-4-migration-guide.md)
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## Related pages

- [Flutter PDF bookmark SDK](/guides/flutter/bookmarks.md)
- [Explore advanced PDF capabilities with demos](/guides/flutter/demo.md)
- [Dart PDF library](/guides/flutter/dart.md)
- [Download Flutter library](/guides/flutter/downloads.md)
- [Bridge Nutrient native Android, iOS, and Web APIs in Flutter](/guides/flutter/customize.md)
- [Changelog for Flutter](/guides/flutter/changelog.md)
- [Flutter PDF library](/guides/flutter.md)
- [Knowledge base](/guides/flutter/kb.md)
- [Flutter guides: Integrate our PDF library](/guides/flutter/intro.md)
- [Open PDF files in Flutter](/guides/flutter/open-a-document.md)
- [Troubleshooting](/guides/flutter/troubleshoot.md)