The regexp argument in the QgsNewNameDialog constructor has been removed as part of a general code migration away from the deprecated QRegExp class.It has been replaced with QgsApplication::shortNameRegularExpression which returns a QRegularExpression object. QgsApplication::shortNameRegExp function was removed as part of a general code migration away from the deprecated QRegExp class.EWKT strings are still supported for inserting and updating features. Previously, they were exposed as EWKT strings. If a postgis layer has more than one geometry, the additional geometry attributes are exposed as QgsReferencedGeometry.This page maintains a list of incompatible changes that happened in previous releases. Backwards incompatible changes with large impact are postponed to the next major release and tracked in These cases are exceptions and they happen only after consideration and agreement of the development team. Sometimes, however, we need to break the API as a result of code changes. from 2.0 to 2.2), so all extensions of existing classes should be done in a manner that third party developers do not need to adjust their code to work properly with newer QGIS releases. Existing code should keep working when the user updates QGIS to another minor version (e.g. That roughly means we do not rename classes and methods, remove them nor change their semantics. 2.0) the developer team is committed to maintain stable API for all subsequent minor releases (2.2, 2.4. After a release of a major version of QGIS (e.g. For example, there are various planned backwards incompatible changes between QGIS 1.8 and 2.0 because the version 2.0 is a new major version. The API of QGIS libraries is allowed to be changed just between major versions of QGIS.

QgsVectorLayerExporter (renamed from QgsVectorLayerImport).QgsSymbolLayerUtils (renamed from QgsSymbolLayerUtilsV2).QgsSymbolRenderContext (renamed from QgsSymbolV2RenderContext).QgsSymbolLayer (renamed from QgsSymbolLayerV2).

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