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AssertionOptions.AssertEquivalencyUsing(...) is no longer available (comming from 6.x to 8.x) #3120
Description
Description
I've read the the upgrade guide and the release note, but I can't find something related about AssertionOptions.AssertEquivalencyUsing(...), is there still a way to archive something like this?
AssertionOptions.AssertEquivalencyUsing(config => config.RespectingRuntimeTypes());
Br
Reproduction Steps
Use FluentAssertions 8.x and use this code
AssertionOptions.AssertEquivalencyUsing(config => config.RespectingRuntimeTypes());
Expected behavior
The code should compile, at the moment it doesn't.
Actual behavior
Code does not compile.
Regression?
No response
Known Workarounds
No response
Configuration
No response
Other information
No response
Are you willing to help with a pull-request?
No
Activity
rizi commentedon Nov 10, 2025
I'm encountering the same "issue", we are currently upgrading to 8.x and planning to buy a license.
Any advice would highly be appreciated.
Br
dennisdoomen commentedon Nov 10, 2025
Thanks for reporting this. Since the various configurations options in v6 and v7 had become a bit messy, we consolidated all of those under the
AssertionConfigurationclass. See https://fluentassertions.com/introduction#global-configurationRIE-UPPERSOLUTIONS commentedon Nov 10, 2025
THX @dennisdoomen!
Could you please close this issue.
Note: AssertionOptions.AssertEquivalencyUsing(config => config.RespectingRuntimeTypes()); becomes AssertionConfiguration.Current.Equivalency.Modify(config => config.IncludingAllRuntimeProperties());
dennisdoomen commentedon Nov 11, 2025
I'll update the breaking changes page as this wasn't the first time somebody asked.