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Tapestry is released under the Apache Software Licence 2.0.

New And Of Note

Tapestry now uses the Blackbird JavaScript console.
Tapestry now automatically combines multiple JavaScript libraries into a single request.
An Ajax event request may now return a MultiZoneUpdate instance to update multiple zones in the client web browser.
Client-side numeric validation is now locale-sensitive.
Some significant performance improvements over Tapestry 5.0.18: the time to initially load a page, and the time to render a page have decreased.
Tapestry IoC services can now be easily advised as well as decorated (both of these refer to Aspect Oriented Techniques applied to Tapestry IoC services).
Tapestry Services can now be injected into Spring Beans, when using the Tapestry/Spring integration library.
Tapestry now compresses responses for clients that support GZIP compression. Context and classpath assets are now handled uniformly: versioned URLs, far-future expiration headers, and GZIP compression where applicable.
Ordered and mapped configurations can now have overrides.
Property expressions have been improved: You can now invoke methods with parameters, or create a list (very useful for link contexts).
IoC Service contributions may now be made in terms of classes (that are automatically instantiated) as well as instances.
A simpler method of overriding built-in services has been added.

Version 5.2 has reached General Availability (stable) status, and developers are working on features for a 5.3 snapshot.

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