This update contains a number of customer-reported and internally found issues since the release of SP3 RU6. See KB2655203: Description of Update Rollup 7 for Exchange Server 2007 Service Pack 3 for more details.
Note: Some of the following KB articles may not be available at the time of publishing this post.
The most important fixes:
- KB2617514 Include updated version of Portuguese-Brazil speller.
- KB2696649 Exchange 2007sp3/2010 OWA CSRF via Cookie Tossing.
- KB2696628 Read Receipt is still duplicated when connecting IMAP.
Support lifecycle statement: This is the final release under standard support for Exchange 2007, as the Exchange 2007 Mainstream Support has now ended. Extended Support for Exchange 2007 SP3 will end on 4/11/2017
Note for Forefront Protection for Exchange users:
Before installing the update, disable ForeFront by using this command: fscutility /disable. After installing the update, re-enable ForeFront by running fscutility /enable.