As of October 28, 2009, PowerCenter 8.6.0 Hotfix11 is generally available. This includes both Standard and Advanced Editions (SE / AE) of PowerCenter. Customers who are currently in version 8.6 and previous hotfixes are strongly recommended to update to this latest maintenance patch release.
There are a number of bug fixes across all major components in PowerCenter 8.6.0. A comprehensive list of fixes and known limitations in this service pack can be found in the release notes available in the documentation center at the Hotfix Download Center.