EAP errors in 2.1.1

We are seeing an increasing number of eap error messages: Error: rlm_eap: No EAP session matching the State variable As mentioned in the Changelog in later version an eap error has been detected and fixed in 2.1.4 Fix EAP-TLS bug. Patch from Arnaud Ebalard Is this bug-fix related to the error messageabove so that upgrading alone would help? Norbert Wegener