---
title: "1.4 release notes"
canonical_url: "https://www.nutrient.io/guides/document-engine/release-notes/1-4/"
md_url: "https://www.nutrient.io/guides/document-engine/release-notes/1-4.md"
last_updated: "2026-05-14T21:57:26.844Z"
description: "Discover the latest Document Engine release with no breaking changes. Learn about the decommission of LibreOffice support in favor of GdPicture.NET."
---

This release contains no breaking changes.

## LibreOffice decommission reminder

Since [PSPDFKit Server 2023.1.0](https://www.nutrient.io/blog/pspdfkit-web-2023-1-rich-text-support-annotation-rotation/), PSPDFKit Server, and now Document Engine, ships with our conversion engine based on [GdPicture.NET](https://www.nutrient.io/guides/dotnet.md). For a while, we supported a way to invoke the old approach based on [LibreOffice](https://www.libreoffice.org/) using a special HTTP header, `x-pspdfkit-conversion-engine`. This header is being disabled now.

## Database migrations

This release includes a database migration that prepares for [per-document asset storage](https://www.nutrient.io/guides/document-engine/configuration/asset-storage.md#working-with-multiple-storage-backends) improvements that will be introduced in a [future version](https://www.nutrient.io/guides/document-engine/release-notes/1-5.md). The migration is expected to run fast and won’t prevent Document Engine rollback to older versions in the existing installations.
---

## Related pages

- [1 1](/guides/document-engine/release-notes/1-1.md)
- [1 10](/guides/document-engine/release-notes/1-10.md)
- [1 11](/guides/document-engine/release-notes/1-11.md)
- [1 12](/guides/document-engine/release-notes/1-12.md)
- [1 13](/guides/document-engine/release-notes/1-13.md)
- [1 2](/guides/document-engine/release-notes/1-2.md)
- [1 14](/guides/document-engine/release-notes/1-14.md)
- [1 5](/guides/document-engine/release-notes/1-5.md)
- [1 15](/guides/document-engine/release-notes/1-15.md)
- [1 3](/guides/document-engine/release-notes/1-3.md)
- [1 6](/guides/document-engine/release-notes/1-6.md)
- [1 9](/guides/document-engine/release-notes/1-9.md)
- [1 7](/guides/document-engine/release-notes/1-7.md)
- [Upgrading from PSPDFKit Server](/guides/document-engine/release-notes/upgrading-from-server.md)
- [Upgrading from PSPDFKit Processor](/guides/document-engine/release-notes/upgrading-from-processor.md)
- [1 8](/guides/document-engine/release-notes/1-8.md)
- [Upgrading Document Engine](/guides/document-engine/release-notes/upgrading.md)