Yesterday, we installed 6.5.4 on four replication hubs and two non-critical, low-usage mail servers. Normally we are not this aggressive implementing new released, but we were really suffering with 6.5.3 and the myriad of hotfixes (we were running 653FP1HF126).So far it seems like view indexes need to rebuild when accessing a view for the first time after upgrading to 6.5.4 (unless the indexer gets to it first), but I’ll do a more careful analysis today.
We are really counting on 6.5.4 adding some stability to our environment! 