This is a bug fix release.
* Fix a SPNEGO regression where an acceptor using the default
credential would improperly filter mechanisms, causing a negotiation
failure.
* Fix a bug where the KDC would fail to issue tickets if the local
krbtgt principal's first key has a single-DES enctype.
* Add stub functions to allow old versions of OpenSSL libcrypto to
link against libkrb5.
* Fix a NegoEx bug where the client name and delegated credential
might not be reported.
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