In the current Beta 2 there are also new features included:

• View attachments in calendar events
  When you receive an invitation from a Notes® or Verse web user that includes an attachment in the event description,
  you can now open or download the attachment from your mobile device, if your device supports the capability. Note
  that opening or downloading inline attachments or creating or editing attachments isn’t supported.
• Support for ActiveSync 16.x
  Traveler now supports Microsoft™ Exchange ActiveSync versions 16.0 and 16.1 on iOS devices. This change allows
  for the development of future features that require this version, such as the ability to sync calendar attachments.
  Traveler automatically switches to ActiveSync 16.x when it detects devices that run on it; no user interaction is
  required.
• Support for APNS HTTP/2
  Traveler now supports HTTP/2 for communication with Apple’s Apple Push Notification Service (APNS) servers. No
  configuration is required and there is no change in behavior.
• Support for draft message synchronization
  Traveler now supports the syncing of draft messages on iOS. As part of Exchange ActiveSync 16.X, which Traveler
  now supports, the draft messages will sync from the server to the device and from the device to the server.
• Support for 24+ hour meetings or events
  You can now create and modify non-repeating meetings and appointments that are longer than 24 hours.