If you do upgrade your db4 version, please make it 4.6+, enough has been written about that in this ML. Everything between patched 4.2.52 and 4.6 should be avoided. Moreover, if other things are making use of db4 4.2.52 on your unknown OS/distribution, then simply replacing it with an upgrade will most probably break everything else depending on 4.2.52.
--Quanah
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Quanah Gibson-Mount Principal Software Engineer Zimbra, Inc -------------------- Zimbra :: the leader in open source messaging and collaboration