The Exchange team is announcing today the availability of Update Rollup 16 for Exchange Server 2007 Service Pack 3. This release adds support for Time Zone Updates released since Update Rollup 15. The release is a cumulative release and contains all fixes for customer reported issues previously reported as well as previously released security bulletins. Update Rollup 16 is not considered a security release as it contains no new previously unreleased security bulletins. More information about this release is available in KB3030086.
Update Rollup 16 is available now on the Microsoft Download Center and will be distributed via Microsoft Update in April.
Note: Documentation may not be fully available at the time this post was published.