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Compatibility
Appweb supports the following standards:
API Compatibility
The Appweb APIs are evolving and are thus subject to change between minor releases. The documentation provides a Stability Classification for each API group that reflects the stability with regard to backwards compatibility.
We do not provide a blanket commitment to backward compatibility. Rather, we adopt a more surgical approach on an API by API basis.
Appweb 2
Appweb 2 is a stable release that in now in maintenance mode. The core programming APIs are relatively stable and are not expected to change significantly. Appweb 2 will be maintained until the end of 2009.
Appweb 3
Appweb 3 is a major change relative to Appweb 2. Most of the APIs have changed in some capacity and you should regard Appweb 3.X as a next generation web server. You can migrate code from Appweb 2 to Appweb 3, however you should expect to have significant refactoring work when transitioning.