The new release adds two bits of missing functionality. Session data Data from the Session object is now added to reports. Data is described/stringified as best we can, with non-value types being reported with their type name, hash code, and .ToString() value. Param scrubbing Sensitive parameter values are now scrubbed. Each character is replaced with an asterisk. By default, any parameter in the following list will be scrubbed: password password_confirmation confirm_password secret secret_token creditcard credit_card credit_card_number card_number ccnum cc_number You can override this list by setting the Rollbar.