ODCL Studio and Runtime version conflict !!

Hi, I'm back again. :)
For a long time I used the Acad2005 and ODCL 6.0.0.25 Studio and Runtime, it's so stable.
Really appreciate ODCL development  team.
As well known ODCL is very powerful and wonderful.
And these days testing with ACAD2014 and ODCL 7.0.0.12 found some control and event not working as desinged.
For example a Grid control and button desinged in 6.0.0.25 Studio codes does not work as well in 7.0.0.12 Runtime.
Designed 7.0.0.12 Studio codes does not work in 6.0.0.25 Runtime either.
Even I got the message of button_click event function not defined.

I don't know well about the relations between ODCL Studio and Runtime each version.
And there is also stable ODCL version.
So if I need to move to latest version of ACAD (ex. ACAD 2013, or ACAD 2014)
do I redesign the older odcl file? and is that good to use the same Studio and Runtime?

Thanks.

I recommend using the 7.0.0.12 version in runtime and Studio, also use the same language as you can change the name of the functions depending on the language.

Your existing code should always work on later versions of the runtime (subject to bug fixes and the occasional breaking change). In general, it would be advised to do important (i.e. customer facing) development work on the latest stable version. However OpenDCL 7.0 is very stable at this point despite being a development build, so I recommend to use OpenDCL Studio 7.0 (which includes Runtime 7.0) for everything at this point.

Thank you, the kind.
I think the environment of working OS and ACAD never could be the same with each other.
Everytime I distribute my code to others , I cannot image what error would occur just wish never happen.
As your recommendation I'd like to shift to Stuio 7 and the more there are some users of latest versions of ACAD.

Thanks.