Open Cascade is delighted to announce the release of Open CASCADE Technology version 8.0.0 Release Candidate 2 to the public.

(Release Candidate 1: https://github.com/Open-Cascade-SAS/OCCT/discussions/499)

Overview

Version V8_0_0_rc2 is a candidate release incorporating over 80 improvements and bug fixes compared to version V8_0_0_rc1, bringing the total improvements since version 7.9.0 to over 130 changes.

Open CASCADE Technology 7.9.1 Released

Open Cascade is delighted to announce the release of Open CASCADE Technology version 7.9.1 to the public.

Overview

Version 7.9.1 is a maintenance release incorporating over 30 improvements and bug fixes compared to version 7.9.0.

Download & Installation

You can obtain OCCT 7.9.1 in several ways:

Open Cascade is delighted to announce the release of Open CASCADE Technology version 8.0.0 Release Candidate 1 to the public.

Overview

Version V8_0_0_rc1 is a candidate release incorporating over 50 improvements and bug fixes compared to version 7.9.0.

We are pleased to announce the release of Added Value Components compatible with Open CASCADE Technology 7.9.0. This update delivers more then 100 enhancements and fixes since the previous release.

What's New in Version 7.9.0

New Components

• USD Exchange: New import/export component supporting:

Dear OCCT Community,

We're pleased to announce that OCCT 8.0 will be released at the start of 2026. In preparation for this major release, we want to share some important information:

Open Cascade is delighted to announce the release of Open CASCADE Technology version 7.9.0 to the public.

Overview

Version 7.9.0 is a minor release incorporating over 250 improvements and bug fixes compared to version 7.8.0.

Release Information

• Release Date (Stable): February 17, 2025
• Version: 7.9.0.beta2
• Git Tag: V7_9_0_beta2

The Beta1 release: https://github.com/Open-Cascade-SAS/OCCT/releases/tag/V7_9_0_beta1

Release Information

• Release Date (Stable): February 17, 2025
• Version: 7.9.0.beta1
• Git Tag: V7_9_0_beta1

Overview

This beta release includes over 230 improvements across various components. The master branch is now in code freeze, with only critical issues being integrated for stability validation. During that period - we will focused on issue related to migration and possible hidden regression to offer more stable release.

The OCCT3D development team is pleased to announce the upcoming release of a new commercial component designed to facilitate the seamless import and export of data using the Universal Scene Description (USD) format. This commercial component will be available starting from February, 2025 for OCCT versions 7.8, 7.8.1, and subsequent feature releases.

USD Description

Big things happening at OCCT3D!

New leadership, exciting updates, and a stronger commitment to open source are coming in 2025!

We're moving to GitHub, boosting our support, and making big changes to our CAD kernel. See more in that article!

Dear OCCT Community,

We are pleased to announce that we have integrated GitHub Wiki for our GitHub repository: Home · Open-Cascade-SAS/OCCT Wiki.

• Home
• User Guides
• Specifications
• Contribution
• Build and Upgrade
• Samples

RefMan doc can be downloaded from the GitHub artefacts (weekly build): Tests - DRAWEXE Testing integration into GH

Additionally, New Installation packages for Win, Lin, MacOS are available (beta mode): Integration request to master

Best regards,
OCCT3D development team.

We're excited to announce a major update for the C# wrapper, featuring Linux platform support and extended .NET Framework compatibility.

Windows C# Support:

• .NET Framework v3.5 to v4.7.2
• .NET 6.0, 7.0, 8.0

Linux C# Support:

• .NET 6.0, 7.0, 8.0

The new version coming soon. Follow our marketplace for updates: Wrappers - Open Cascade.

Best regards,

The OCCT3D Team