This affects users of the alpha client Pyethereum - users of approved Frontier command line interfaces geth and eth are unaffected.



Users affected: Users of Python client “pyethapp”



Impact: Issue will eventually lead pyethapp clients to fail to reach consensus with the go and c++ clients



Issue description: Double-counting non-unique suicides when computing refunds, contrary to the protocol specification. See link to test.



Workaround: n/a, see fix below



Fix: Users should ensure, that they are using v 0.9.73 of the ethereum library or onwards, available from 2015.08.12. Users of pyethapp should reinstall



> pip install pyethapp --force-reinstall.

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