Items are ordered by area/component. The first column indicates the
scope of a change:
* jsr - A larger feature or feature set having its own Java
Specification Request
* api - A smaller feature that adds new Java APIs (application
programming interfaces)
* imp - An implementation enhancement that does not involve new
APIs, for example, a performance improvement
Note, at this Beta milestone, the Mustang release is still under
development. Its related Umbrella JSR 270 does not itself define
specific features. Instead it enumerates features defined in other JSRs
or through the concurrent maintenance review of the Java SE platform
specification. The final release is expected to include all JSR 270
features, although it is possible for an approved feature to be
dropped.