We are currently running ArcGIS Server 9.3 with the ArcGIS Javascript API 1.6 and we are looking at upgrading to ArcGIS Server 10.x. Are we required to upgrade the Javascript API as well?
I found some information about the requirements regarding ArcGIS Server when using the Javascript API 2.x. But not the other way around.
The REST API has not changed, so the 1.6 code should still work against version 10.0 services. It will be best to use the version of the Javascript API released while the version of ArcGIS Server you are using is current. The newer version of the API will support the new functionality available with version 10.0, along with bug fixes. You can test to see if your 1.6 code will run properly using the 2.4 libraries and make adjustments if necessary. Here is some information that should help moving to the current version:
We aren't using a lot of advanced features I think, the following is used: - Overview Map - Measure length and area - Identify - Tiled and Dynamic layers mixed together - Toggle and opacity change of layers - Zoom slider - InfoWindow
Are we talking about 8 hours work or more like a full week including testing etc.
