[Sugar-devel] How to develop software running on XO 1.0 / 1.5 and the latest Sugar on a Stick distribution?

[Behavior Vehikel]

Hi,

some questions about developing activities:

Three years ago I started to develop an activity for SoaS. At this time 
there was no possibility for me to buy a XO computer. For testing I used 
some SoaS distributions running inside Virtual Box. Now OLPC Germany 
organized how to buy an XO 1.5 and I got one. Testing my activity on a 
real XO shows some errors I have never seen before.


My motivation is to write activities in a way that they run on “old” 
real XO and on latest SoaS releases.


Lots of questions:

How many XO computers use Sugar 0.84 environment?

How can I write software running on all XO and SoaS versions?

What is the oldest version I need to support without excluding children 
using XO 1.0 computers?

What strategy for developing my activity independently form different 
versions of the sugar infrastructure components?

Is there an example activity running on all versions that I can use as 
an starting point for my own work?


Kind regards
Thomas