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Open Cascade is delighted to announce the final release of Open CASCADE Technology version 8.0.0 to the public. 8.0.0 is the largest single-version step in OCCT in many years. The cycle covered five Release Candidates and three Beta builds and accumulated more than 500 changes since 7.9.0. More deta
Open Cascade is delighted to announce the release of Open CASCADE Technology version 8.0.0 Release Candidate 5 to the public. Release Candidate 4 Release Candidate 3 Release Candidate 2 Release Candidate 1 Overview Version 8.0.0-rc5 is a candidate release incorporating 64 improvements and bug fixes
Open Cascade is delighted to announce the release of Open CASCADE Technology version 8.0.0 Release Candidate 4 to the public. Release Candidate 3 Release Candidate 2 Release Candidate 1 Overview Version 8.0.0-rc4 is a candidate release incorporating 111 improvements and bug fixes compared to version
Release Date: December 2025 Full Release Notes: GitHub Discussion #917 Highlights Version 8.0.0-rc3 includes 157 improvements over RC2, totaling 290+ changes since 7.9.0. Key Changes Area Summary Math Modernization Deprecated OCCT math functions ( ACos , Sin , Sqrt , etc.) in favor of std:: equivale
Open CASCADE Technology 7.9.3 Released Open Cascade is delighted to announce the release of Open CASCADE Technology version 7.9.3 to the public. Overview Version 7.9.3 is a maintenance release incorporating over 15 improvements and bug fixes compared to version 7.9.2. What's New in OCCT 7.9.3 Modeli
Open Cascade is delighted to announce the release of Open CASCADE Technology version 7.9.2 to the public. Overview Version 7.9.2 is a maintenance release incorporating over 25 improvements and bug fixes compared to version 7.9.1. What's New in OCCT 7.9.2 Configuration & Build System VCPKG add TclTk
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
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
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. What is a Release Candidate A Release Candidate
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. What's New in OCCT 7.9.0 Core Improved code quality through static analysis
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 New changes: Fixed issue with documentation version extraction Fixes crash in RWMesh interface when using old
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. D
Open Cascade is pleased to announce that the next Open CASCADE Technology (OCCT) maintenance release (version 7.8.1) is prepared. The sources of Open CASCADE Technology 7.8.1 are available under the V7_8_1 tag in the OCCT repository. This maintenance release addresses a critical issue regarding back
Open Cascade is delighted to announce the release of Open CASCADE Technology version 7.8.0 to the public. Overview Version 7.8.0 is a minor release, encompassing approximately 110 improvements and corrections over the previous minor release 7.7.0. What's New in OCCT 7.8.0 General Fixed TDataStd_Name
Open Cascade is pleased to announce that the next Open CASCADE Technology (OCCT) maintenance release (version 7.7.2) is prepared. The sources of Open CASCADE Technology 7.7.2 are available under the V7_7_2 tag in the OCCT repository. This maintenance release fixes the following problems: 23638 : Dat
Open Cascade is pleased to announce that the next Open CASCADE Technology (OCCT) maintenance release (version 7.7.1) is prepared. The sources of Open CASCADE Technology 7.7.1 are available under the V7_7_1 tag in the OCCT repository. This maintenance release fixes the following problems: 33171 : Mod
Open CASCADE Technology 7.7.0 released Open Cascade is pleased to announce a new public release of Open CASCADE Technology (version 7.7.0). Open CASCADE Technology version 7.7.0 is a minor release, which includes about 250 improvements and corrections over the previous minor release 7.6.0. Version 7
Open Cascade continues publishing Open CASCADE Technology (OCCT) maintenance releases. The next OCCT maintenance release (version 7.5.3) is prepared. The sources of Open CASCADE Technology 7.5.3 are available under the V7_5_3 tag in the OCCT repository. This maintenance release fixes the following c
Hello, We are pleased to inform you that the new release of OCCT, 7.6.0, is ready for beta testing, and invite you to test this beta version in your applications. Use the commit tagged "V7_6_0_beta" in the Git repository for this testing. Alternatively, you can use the complete source archive or Win
Open Cascade is pleased to announce that the next Open CASCADE Technology (OCCT) maintenance release (version 7.6.3) is prepared. The sources of Open CASCADE Technology 7.6.3 are available under the V7_6_3 tag in the OCCT repository. This maintenance release fixes the following critical problems: 29
Hello, We are pleased to inform you that the new release of OCCT, 7.7.0, is ready for beta testing, and invite you to test this beta version in your applications. Use the commit tagged "V7_7_0_beta" in the Git repository for this testing. Alternatively, you can use the complete source archive or Win
Open Cascade is pleased to announce that the next Open CASCADE Technology (OCCT) maintenance release (version 7.6.2) is prepared. The sources of Open CASCADE Technology 7.6.2 are available under the V7_6_2 tag in the OCCT repository. This maintenance release fixes the following critical problems: 31
Open Cascade is pleased to announce that the next Open CASCADE Technology (OCCT) maintenance release (version 7.6.1) is prepared. The sources of Open CASCADE Technology 7.6.1 are available under the V7_6_1 tag in the OCCT repository. This maintenance release fixes the following critical problems: 31
Open Cascade is pleased to announce a new public release of Open CASCADE Technology (version 7.6.0). Open CASCADE Technology version 7.6.0 is a minor release, which includes more than 410 improvements and corrections over the previous minor release 7.5.0. Version 7.6.0 introduces new features of mos
When debugging from a previous Python code (2.7) to (3.7) error messages occured. (from pythonocc-core==0.18.1 to pythonocc-core=7.4.1) First I applied 2to3.py, but code needed some further debugging. Following code caused error at "plane = OCC.Core.Geom.Geom_Plane(Surface)" How can I solve this pro
Open Cascade continues publishing Open CASCADE Technology (OCCT) maintenance releases. The next OCCT maintenance release (version 7.5.2) is prepared. The sources of Open CASCADE Technology 7.5.2 are available under the V7_5_2 tag in the OCCT repository. This maintenance release fixes the following c
Hello, We are pleased to inform you that we've prepared the first OCCT maintenance release (version 7.5.1) and are going to follow this approach on a regular basis. Starting from now, we plan to issue maintenance packs approximately once a quarter or even more frequently depending on the customers'
Starting from February 2021 Open Cascade introduces into practice maintenance releases of Open CASCADE Technology (OCCT). This approach allows users to get the certified updates for OCCT and added-value components faster and at no additional costs. We consider maintenance release (or Maintenance Pac
Open Cascade is pleased to announce a new public release of Open CASCADE Technology (version 7.5.0). Open CASCADE Technology version 7.5 .0 is a minor release, which includes more than 4 00 improvements and corrections over the previous minor release 7.4.0. Version 7.5 .0 brings in new features of t
Hello, We are pleased to inform you that the new release of OCCT, 7.5.0, is ready for beta testing, and invite you to test this beta version in your applications. Use the commit tagged "V7_5_0_beta" in the Git repository for this testing. Alternatively, you can use the complete source archive or Win
Hello, We are pleased to inform you that the new release of OCCT, 7.4.0, is ready for beta testing, and invite you to test this beta version in your applications. Use the commit tagged "V7_4_0_beta" in the Git repository for this testing. Alternatively, you can use the complete source archive . If y
OPEN CASCADE is pleased to announce a new public release of Open CASCADE Technology (version 7.4.0). Open CASCADE Technology version 7.4.0 is a minor release which includes more than 500 improvements and corrections over the previous minor release 7.3.0. New in this version: Modeling Improved robust
May 29, 2018 OPEN CASCADE is pleased to announce a new public release of Open CASCADE Technology (version 7.3.0). Open CASCADE Technology version 7.3.0 is a minor release, which includes more than 350 new features, improvements and bug fixes over minor release 7.2.0. New in this version: General Sup
Open CASCADE Technology 7.1.0 is available for download! November 25, 2016 OPEN CASCADE is pleased to announce a new public release of Open CASCADE Technology (version 7.1.0). Open CASCADE Technology and Products version 7.1.0 is a minor release, which includes more than 500 improvements and code en
Hello, We are pleased to inform you that the next release of OCCT, 7.3.0, is ready for beta testing, and invite you to test this beta version in your applications. Use the commit tagged "V7_3_0_beta" in the Git repository for this testing. Alternatively, you can use either complete source archive or
Open CASCADE Technology 7.2.0 is available for download! August 31, 2017 OPEN CASCADE is pleased to announce a new public release of Open CASCADE Technology (version 7.2.0). Open CASCADE Technology and Products version 7.2.0 is a minor release, which includes more than 500 new features, improvements
Hello, We are pleased to inform you that OCCT 7.2.0 is ready for beta testing, and invite you to test this beta version in your applications. Use the commit tagged "V7_2_0_beta" in the Git repository for this testing. Alternatively, you can use either complete source archive or Windows installer inc
Hello, We are pleased to inform you that OCCT 7.1.0 is ready for beta testing, and invite you to test this beta version in your applications. Use the commit tagged "V7_1_0_beta" in the Git repository for this testing. Alternatively, you can use either complete source archive or Windows installer inc
Open CASCADE Technology 7.0.0 is available for download! April 05, 2016 OPEN CASCADE is pleased to announce a new public release of Open CASCADE Technology (version 7.0.0). Open CASCADE Technology and Products version 7.0.0 is a major release, which includes more than 500 improvements and bug fixes
Hello, We are pleased to announce that beta testing campaign of OCCT 7.0 has finished, and OCCT 7.0.0 Release Candidate is available. This time beta testing was especially fruitful: we have got several dozens inputs from the community, which helped to improve OCCT for this release. break The most es
Hello, We are happy to announce that beta version of OCCT 7.0 is available for testing, and invite you to test it in your projects. OCCT 7.0 includes a number of essential changes aimed to eliminate legacy limitations of OCCT. These changes improve configuration and building, execution in multithrea
Open CASCADE Technology 6.9.1 is available for download! September 28, 2015 OPEN CASCADE is pleased to announce a new public release of Open CASCADE Technology (version 6.9.1). Open CASCADE Technology and Products version 6.9.1 is a minor release, which includes about 200 improvements and bug fixes
Hello, We are going to issue a maintenance release of OCCT, numbered 6.9.1, to provide bug fixes and minor improvements over the version 6.9.0, before major release of version 7.0. The beta version of 6.9.1 is now available for testing. We invite you to test this beta version in your applications. I
May 12, 2015 OPEN CASCADE SAS is pleased to announce a new public release of Open CASCADE Technology (version 6.9.0). Open CASCADE Technology and Products version 6.9.0 is a minor release, which includes about 400 improvements and bug fixes over the previous release 6.8.0. Version 6.9.0 is binary in
Hello All, The release of OCCT 6.9.0 is published. The corresponding tag in Git is "V6_9_0". break I am glad to mention here the community members who contributed to this release by reporting issues, participating in discussions, and providing code corrections: Aaron Michalk alexzkw drazmyslovich go
Dear All, I am pleased to inform you that OCCT 6.9.0 is ready for public beta testing. We invite you to test this beta version in your applications. If you have reported some issues in bug tracker, please check those with Verified status -- we assume they are fixed, and will appreciate to see your c
Dear Open Source Community, OPEN CASCADE SAS is pleased to announce a beta version of Open CASCADE Technology (OCCT) 6.7.0. This version is provided for beta testing only. It is intended for those users who are interested in having a preview of the forthcoming release and are ready to test it and to
Hello All, We are preparing next version of OCCT, 6.7.1, to be released by the end of April. This version is to provide bug fixes and minor improvements, mostly those made for our customers. We are going to minimize API changes in this release, thus most of substantial improvements affecting API, ev
Hello All, The release of OCCT 6.8.0 is published. The corresponding tag in Git is "V6_8_0". Note that WOK has also been changed, its version is also elevated to 6.8.0. break I am glad to mention here the community members who contributed to this release by reporting issues, participating in discuss
November 10, 2014 OPEN CASCADE SAS is pleased to announce a new public release of Open CASCADE Technology (version 6.8.0). Open CASCADE Technology and Products version 6.8.0 is a minor release, which includes nearly 600 improvements and bug fixes over the previous release 6.7.1. Version 6.8.0 is bin
Dear All, I am pleased to inform you that OCCT 6.8.0 is ready for beta testing. We invite you to test this beta version in your applications. If you have reported some issues in bug tracker, please check those with Verified status -- we assume they are fixed, and will appreciate to see your comments
Hello All, The release of OCCT 6.7.1 is published. The corresponding tag in Git is "V6_7_1". Note that this time it is not part of the master branch but a separate one. break I am happy to mention here the community members who contributed to this release by reporting issues, participating in discus
April 30, 2014 OPEN CASCADE SAS is pleased to announce a new public release of Open CASCADE Technology (version 6.7.1). Open CASCADE Technology and Products version 6.7.1 is a maintenance release, which includes about 170 improvements and bug fixes over the previous release 6.7.0. Version 6.7.1 is b
December 18, 2013 OPEN CASCADE SAS is pleased to announce a new public release of Open CASCADE Technology (version 6.7.0). This is a minor release, which includes about 350 new features, improvements and bug fixes over previous version 6.6.0 released in April 2013. Version 6.7.0 is binary incompatib
Dear All, I am pleased to inform you that OCCT 6.7.0 is ready for beta testing. We invite you to test this beta version in your applications. If you have reported some issues in bug tracker, please check those with Verified status -- we assume they are fixed, and will appreciate to see your comments
Dear All, We are going to publish next release of OCCT, numbered 6.7.0, next month. Beta version for preliminary testing should be available in about one week. The major features in this release shall be: Multiple improvements and new features in Visualization: Dynamic clipping of the shaded objects
April 22, 2013 OPEN CASCADE SAS is pleased to announce a new public maintenance release of Open CASCADE Technology (version 6.6.0). This is a minor release, which includes over 250 new features, improvements and bug fixes over maintenance release 6.5.5. Version 6.6.0 is binary incompatible with the
Hello All, The release of OCCT 6.6.0 is published. The corresponding tag in Git is "V6_6_0". break I am happy to mention here the community members who contributed to this release by reporting issues, participating in discussions, and providing code corrections: barbier brueninghaus Dan8 dc dingzh f
Dear Open Source Community, OPEN CASCADE SAS is pleased to announce a beta version of Open CASCADE Technology (OCCT) 6.6.0. This version is provided for beta testing only. It is intended for those users who are interested in having a preview of the forthcoming release and are ready to test it and to
Dear Contributors, Today we have announced a maintenance release 6.5.5 of OCCT libraries, intended for our customers and users who need an improved version of OCCT compatible with 6.5.4. Now I am pleased to inform you that the next minor version 6.6.0 is ready for beta testing. This version provides