# Release History

This topic lists the features and resolved issues in previous releases of ViDi.

## ViDi 3.1.0

###### Tool and GUI Changes

- The ViDi Blue Read Tool has been added for Optical Character Recognition (OCR) applications.
- Speed improvements and increased performance for the Blue Locate Tool when matching models.
- The Feature Size parameter is now interactive and can be graphically resized within the GUI.
- Labeling with the Blue tools has been improved to include multi-feature selection and interaction.
- The Blue tools have improved flexibility for model optimization.
- In the results, a Confusion Matrix has been added for the Blue Locate and Blue Read tools.
- A new feature/match and region-focus display mode has been added when using the Database Explorer.
- Checks have been added to provide feedback on wrongly labeled views.
- The examples have been updated, and there is a new example for the Blue Read tool.
- The Green Classify Tool now includes the Exclusive parameter, which, when disabled, allows you to label a single image with multiple labels (indicating that the image belongs to multiple classes).
- The Red Analyze Tool – Statistics have been enhanced for better readability.
- There have been numerous issues resolved, and additional enhancements and improvements to the ViDi software.

###### Processing and Support Changes

- The GPU Memory Optimization is now activated by default (when using either the Windows Display Driver Model or Tesla Compute Cluster drivers). This feature can be activated and/or deactivated via command line arguments and the API.

- Command line arguments have been added to allow you to select the number of GPUs to utilize at startup of ViDi, to specify the GPU mode and to specify the amount of GPU memory to pre-allocate.

- There is a new Cognex VisionPro wrapper assembly, which provides data conversion between VisionPro and ViDi Suite, offering the following:

  - Efficient image conversion
  - Combined graphics
  - Fixturing conversion
  - Calibration conversion
- Support for Cognex Designer 4.0 has been added, with the addition of a ViDi Sub Task block, which contains the ViDi Suite tools and the ability to program the tools within the Cognex Designer IDE.
- Support for Cognex VisionPro 9.3 has been added.
- Support for Microsoft® Windows® 10 Professional (64-bit).
- Support for Microsoft® Windows® 7 Professional (64-bit).
- The performance when loading training Workspaces, utilizing on-demand loading of tools, has been improved.
- A new Workspace archive format, based on ZIP files, has been implemented.