Advisory – Express Entry V4 Release Postponed

Due to unforeseen issues reported by clients who have tested the beta version of Express Entry V4, we are postponing the release of the service to the week of August 9, 2021.

Starting August 9, 2021, Express Entry API will be updated from Version 3 to Version 4. The update will be seamless, however, we are strongly advising all our clients to test the Beta URL and report any compatibility issues.

The new version introduces improvements on back-end architecture for the address completion engine to provide better results. These changes should be backwards compatible. However, some integrations, especially those that are using older technologies, may encounter incompatibility issues with V4 header structure. This also applies to users who have stricter implementations that are unable to handle changes to API header response dynamically.

Version 4 Improvements:
• Conversion to container technology to increase stability and reduce maintenance/update times
• Conversion to .NET Core
• Improved search engine, overall providing better results for autocompletion
• Optimizations to increase overall processing times

We strongly suggest that you test your applications against the Beta URL to ensure that they will continue to work after Version 4 has been released.

You can find our beta URL testing instructions here.
You can find more details of the Version 4 update here.

Please contact Tech Support at or call 1 (800) 800-6245 x4 with any questions or concerns regarding the Express Entry V4 release.

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