What's 'API Baseline' in Eclipse PDT

Question

Since upgrading to Eclipse 3.7, the Eclipse PDE plugin wants me to specify an \'API Baseline\' for all my Eclipse Plugin projects.

However there seems to be no documenta

Answer 1

From the PDE API Tools User Guide:

An API baseline defines the state you want to compare your development workspace bundles against for the purposes of binary compatibility, bundle version numbers, and @since tags. For example, if you are developing bundles for Eclipse 3.4, you will use Eclipse 3.3 as your baseline.