Arcgis JavaScript API v 2.8 and ArcGis Server 10.1

[BogdanUngureanu]

Are Arcgis JavaScript API v 2.8 and ArcGis Server 10.1 compatible?

[KevinGooss]

I would say yes. In my experience all of the older apis support newer ags frameworks. I think esri has done a good job of adding functionality first at the ags level and then supporting it at the api level, all while maintaining backward compatibility. So a new feature in ags will be supported in a new version of the js api but will not break in an older version of the api.

[BogdanUngureanu]

Thanks! That's good news!
And a combination of the latest API and ArcGis Server 10.0 would work then?

[KevinGooss]

Yes, but you have to use caution when you try to implement the api. The docs do a good job of explaining when certain functionality was added and what level it is supported at.
For example, you cannot use features in the api that are for ags 10.1 if you have ags 10.0.