---
title: "1.11 release notes"
canonical_url: "https://www.nutrient.io/guides/document-engine/release-notes/1-11/"
md_url: "https://www.nutrient.io/guides/document-engine/release-notes/1-11.md"
last_updated: "2026-05-30T02:20:01.237Z"
---

Before attempting to upgrade to Document Engine 1.11, make sure your application runs as expected on your current version. If you’re on version 1.6.1 or later, you can upgrade directly to 1.11. If you’re on an earlier version, follow the step-by-step upgrade path outlined in our [upgrade](https://www.nutrient.io/guides/document-engine/release-notes/upgrading.md#general-advice) guide.

## Highlights

### Digital signatures

This version adds a new `signingCertificateChain` field to the schema of the signatures returned by Document Engine when a client requests signatures in a document.

#### Affected endpoints

All endpoints that work with build instructions are affected by this change, including:

- `GET /api/documents/{documentId}/signatures`

- `GET /api/documents/{documentId}/layers/{layerName}/signatures`

Refer to Document Engine’s [API reference](https://www.nutrient.io/api/reference/document-engine/upstream/) for more information.

### Web SDK processing operations

This version adds support for additional [document processing operations](https://www.nutrient.io/api/web/modules/DocumentOperations.html) when invoking processing via `Instance#applyOperations` from Nutrient Web SDK:

- `addPageMargins` to add insets and outsets to pages.

- `updateMetadata` to update document metadata.

### GdPicture update

This version ships with [GdPicture 14.3.12](https://www.nutrient.io/guides/dotnet/changelog.md#14.3.12).

### Performance improvements

This release improves the performance of filesystem operations, fixing a performance regression that was introduced in 1.8.0.

## Breaking changes

### Database connections

We found that versions 1.10.0 and 1.10.1 stopped handling the `DATABASE_CONNECTIONS` environment variable correctly, and it defaulted to `10` instead of `20`. To address this, we recommended setting the `PGPOOL_SIZE` variable instead of `DATABASE_CONNECTIONS`. However, as of this version, this is no longer a valid recommendation, as the issue was fixed, so be sure to revert back to the `DATABASE_CONNECTIONS` environment variable.

## Database migrations

This release doesn’t include any database migration.

## Changelog

A full list of changes, along with the issue numbers, is available [here](https://www.nutrient.io/guides/document-engine/changelog.md#1.11.0).
---

## Related pages

- [1 1](/guides/document-engine/release-notes/1-1.md)
- [1 12](/guides/document-engine/release-notes/1-12.md)
- [1 13](/guides/document-engine/release-notes/1-13.md)
- [1 10](/guides/document-engine/release-notes/1-10.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 9](/guides/document-engine/release-notes/1-9.md)
- [1 15](/guides/document-engine/release-notes/1-15.md)
- [1 16](/guides/document-engine/release-notes/1-16.md)
- [1 8](/guides/document-engine/release-notes/1-8.md)
- [1 3](/guides/document-engine/release-notes/1-3.md)
- [1 4](/guides/document-engine/release-notes/1-4.md)
- [1 6](/guides/document-engine/release-notes/1-6.md)
- [Upgrading Document Engine](/guides/document-engine/release-notes/upgrading.md)
- [Upgrading from PSPDFKit Processor](/guides/document-engine/release-notes/upgrading-from-processor.md)
- [1 7](/guides/document-engine/release-notes/1-7.md)
- [Upgrading from PSPDFKit Server](/guides/document-engine/release-notes/upgrading-from-server.md)