Version 3.0 is when the OpenLayers API will change in such a way that applications may break. Before this happens, we will do our best to make transition simple, by offering feedback, error reporting, migration information, etc.

Deprecated Code Removal

Deprecated code will be removed. This includes:

• Control.MouseDefaults
• Control.MouseToolbar

Spherical Mercator

• It is possible that layers from commercial APIs which use Spherical Mercator will only be accessible via sphericalMercator in 3.0.