PocketWizard recently released beta firmware update 5.185. I don't recall seeing this mentioned in this forum so here it is. 
http://www.pocketwizard.com …L_beta_firmware_5.185.pdf
PocketWizard wrote:
Compatibility Additions:
AC9 AlienBees Adapter and PowerST4 for Elinchrom RX
Many improvements have been made in preparation for the upcoming launch of these ControlTLdevices. Look for PowerTracking and other exciting features!
Nissin Flash models Di866 and Di622
A control was added to the Misc Tab called “TopShoeDetectionMode.” To use a Nissin Di866 or Di622 for Canon this control must be set for “Nissin Flash.” Most features of this flash are supported.
Improvements:
- Learn Mode has been greatly improved. Teaching from a MiniTT1 or FlexTT5 as transmitter now results in the ControlTL channel being learned very reliably.
Compatibility Additions:
AC9 AlienBees Adapter and PowerST4 for Elinchrom RX
Many improvements have been made in preparation for the upcoming launch of these ControlTLdevices. Look for PowerTracking and other exciting features!
Nissin Flash models Di866 and Di622
A control was added to the Misc Tab called “TopShoeDetectionMode.” To use a Nissin Di866 or Di622 for Canon this control must be set for “Nissin Flash.” Most features of this flash are supported.
Improvements:
- Learn Mode has been greatly improved. Teaching from a MiniTT1 or FlexTT5 as transmitter now results in the ControlTL channel being learned very reliably.
IMPORTANT: Learn Mode is not required for normal operation of your radios. It is intended as a tool for resolving channel conflicts in the field. Most photographers can use the default channels safely. If you wish to operate on different channels, then the PocketWizard Utility is the recommended method for setting channels.
- Radio transmission reliability of the MiniTT1 when there is a flash or accessory in the top shoe has been improved.
- Improved Relay Mode operation when triggering a remote camera that is using a Rear Curtain Sync shutter speed.
- Bulb mode operation has been improved. Rear Curtain Sync and Bulb Mode are not currently supported.
