Today, Apple released an update for iOS which supposedly fixes, amongst other things, some Exchange-related issues. The release notes of iOS 8.2 mention the following Exchange-related fixes:

• Fixes stability of Mail
• Addresses an issue that caused certain events in a custom reoccurring meeting to drop from Exchange calendar
• Fixes an certificate error that prevented configuring an Exchange account behind a third-party gateway
• Fixes an issue that could cause an organizer’s Exchange meeting notes to be overwritten
• Resolves an issue that prevented some Calendar events from automatically showing as “busy” after accepting an invite.

However, some existing complaints are not resolved by this update, such as the WiFi performance issue.

It is a natural law that for every bug that is fixed, new ones are introduced. So, some organizations may therefor want to test and accept this iOS update before giving it the green light for their Exchange environment. To block a specific version of iOS, consult this page.

More information on current issues with Exchange ActiveSync and 3rd party devices can be found in support article KB2563324.