Update Rollup 12 for Exchange 2010 Service Pack 3 is now available for direct download. It includes 6 new fixes or improvements and all previously released fixes and security updates for Exchange 2010 SP3. Note that mainstream support for Exchange 2010 has already ended.
Notable fixes are:
- KB3106421: Very long URLs in an email message do not open in OWA in Internet Explorer
- KB3096125: CryptographicException error when Edge Transport service crashes in an Exchange Server 2010 environment
- KB3048372: Exchange Calendar items are shifted incorrectly when some Windows DST updates are applied