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Fiddler Everywhere

Release History

Fiddler Everywhere v8.3.0

October 21, 2026

Version 8.3.0

NEW
  • Add support for custom inspectors built for Fiddler Classic on Windows.
  • Add support for GPT-6 models in the Chat Assistant.

 

 FIXED
  • Sanitization does not consistently mask nested JSON and XML values.
  • Removed sanitization keywords continue to mask matching data until the application restarts.
  • The Do Not Show rule action incorrectly changes gateway proxy behavior.
  • Updated third-party dependencies to address potential security vulnerabilities.

Fiddler Everywhere

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