Beta 9:

Multi-Series Indicators
There are still several known issues outstanding and we advise you to not develop/work with multi-series indicators as you may run into issues. Thanks for your understanding.

Quoting 

"we advise you to not develop/work with multi-series indicators as you may run into issues"

That's quite an understatement, to put it mildly. In NT7B9, they completely broke multi-series indicators. If you Add() a second data series in your indicator in Initialize(), it never calls OnBarUpdate.

I'm surprised they released it in this state.

NT7 beta 10 release notes, released February 24th 2010

NT7 beta 11 release notes, released March 18th 2010

Mike

NT7 beta 12 release notes, released March 25 2010.

In this version they say to not use any third party indicators if you are having any problems with NT7, as they could not work and they will ask you to uninstall them. This might be all third party indicators, or it might be only RemoteSoft protected ones. The email is not entirely clear.

They also ask developers using RemoteSoft protection to stop distributing DLL's because they don't work...

Mike

NT7 beta 13, released March 31 2010

Mike

NT7 beta 14 released April 12 2010

Mike

NT7 beta 15 released April 29 2010.

Release notes attached.

Mike

NinjaTrader 7 beta 16 is not already released

Mike

edit (sam028): some problems in the releases Beta 16, next release next week.

Big Mike 

NinjaTrader 7 beta 16 is not already released Mike edit (sam028): some problems in the releases Beta 16, next release next week.

Well it was pulled, and now it is re-released, presumably you need to re-download the setup.exe installer as something has changed.

Mike