# Release notes

> To learn what has changed, check out the release notes.

To learn what has changed, check out the release notes.

## v25.4.0

**Release date: April 10, 2025**

### Bug fixes

We've fixed an issue that caused errors while running in Windows projects.

## v23.4.1

**Release date: August 1, 2024**

### Improvements

For this release, we made sure to bring minor improvements and security fixes to this
package.

## v23.4.0

**Release date: April 26, 2023**

### Improvements

Improved OCR detection.

Faster speed on text-heavy images.

The maximum number of words to be extracted per request has been increased from 800 to 2,000 to match the cloud and on-premises
models.

### Known issues

When the limit for the maximum number of words to be extracted per request is reached, an error message is thrown and the
OCR boxes in the output are a random subset of the entire set of OCR boxes (words) on the screen, so we can’t guarantee this
exact subset is detected at runtime.

As a workaround, you can either indicate a smaller region of the screen or you can disable OCR processing.

To disable OCR processing, if OCR boxes are not useful in the automation project, go to **Project Settings** > **Computer Vision** > **CV Methods** > deselect the **OCR** checkbox from the drop-down menu.

![docs image](https://dev-assets.cms.uipath.com/assets/images/activities/activities-docs-image-180800-a917bc61.webp)

OCR processing can also be disabled at activity level if you go to the properties panel of the **CV Screen Scope** activity > **Input** > **CvMethod** > deselect the **OCR** checkbox from the drop-down menu.

![docs image](https://dev-assets.cms.uipath.com/assets/images/activities/activities-docs-image-179368-b3003513.webp)

## v22.7.2

**Release date: July 25, 2022**

### Bug fixes

* Fixed an issue which caused UiPath Screen OCR to crash when used as a standalone activity with the Computer Vision Local Server,
  or inside a CV Screen Scope that used either Computer Vision Cloud or Local Server.

## v22.7.1

**Release date: July 12, 2022**

### Improvements

The Computer Vision Local Server has now been upgraded and is faster, better, and shares all of its features with the Cloud
version. Also, this means that older CPU architectures that do not support AVX2 are no longer supported and an error is thrown
if trying to use the server on these machines.

## v21.10.1

**Release date: January 21, 2022**

### Bug fixes

* Fixed an issue which caused the Computer Vision Local Server to label some classes of UI elements (minimize buttons, close
  buttons, icons, check boxes, and input boxes) incorrectly.

## v21.10.0

**Release date: November 9, 2021**

### Improvements

This package now supports **.NET 5 Windows** projects. For more information, see [About Automation Projects](https://docs.uipath.com/studio/v2021.10/docs/about-automation-projects#setting-the-project-compatibility).

### Breaking changes

* The Computer Vision Local Server does not correctly label UI Elements, causing automation projects created with earlier versions
  and ran on this version to potentially fail. This means that automations created with this versions do not have neither backwards
  or forward compatibility.

:::important
**Erratum 19 January 2022**: Added the "Local Server does not correctly label UI Elements" breaking change.
:::

## v21.6.0

**Release date: June 29, 2021**

### Improvements

The detection speed for UI elements is now improved between twofold and threefold, depending on the size of the screen you
are using. Also, the new Machine Learning model now has increased accuracy when detecting UI elements.

You can now perform both Computer Vision and OCR detection in a single server call when using the **CV Screen Scope** activity with the **OCR Screen Engine** with both **UseLocalServer** properties set to `True`. The joint Computer Vision and OCR detection time is comparable to the Computer Vision detection time of the previous version.

This version of the Computer Vision Local Server does not support .NET 5. This means that when starting a new .NET 5 compatible
Studio process, the Computer Vision Local Server package cannot be found on any feed, as any incompatible packages are filtered
out by the Package Manager.

## v20.10.0

**Release date: October 14, 2020**

### What's new

The first iteration of the Computer Vision Local Server is now here, enabling you to harness the power of the Computer Vision
activities without needing to connect to a third-party server.