We are very pleased to announce the first release candidate preview of
Tapestry 5.3.

Tapestry 5.3 is significantly faster than Tapestry 5.2, and is more
memory efficient ... a long with tons of significant new features,
improvements, and bug fixes.

Details here: 
http://tapestry.apache.org/2011/10/31/tapestry-53-release-candidate.html

This is still a preview release, but we encourage the Tapestry
community to upgrade to this release. With positive feedback (and no
show-stopping negative feedback) we should progress to a final release
of 5.3 in a few weeks.

For most users, the upgrade path is simply changing the version
number, and performing a clean compile.

Note that with each new release, we get a slew of panicked messages
that Tapestry is broken in bizarre ways. These ALMOST ALWAYS turn out
to be prior-release JARs still on the classpath, either in the
developer's working directory, or in a servlet container deployment
directory. Please carefully clean up your environment as part of the
upgrade!

There are some cases where Tapestry 5.3 performs more rigorous checks
than Tapestry 5.2; for example, 5.3 ensures that event handler methods
that reference a component id ("onSuccessFromLogin") correspond to an
actual component ("login"); in Tapestry 5.2, this was not checked for,
and the event handler method would never fire ... it likely has a typo
in its name, or is related to a component that was removed from the
template.  This particular check can be disabled:
http://tapestry.apache.org/configuration.html#Configuration-tapestry.compatibility.unknowncomponentidcheck...

It would be wise to start up your application under 5.3, then use the
new PageCatalog page (http://localhost:8080/pagecatalog) and click the
"load all" link, to force all pages to be loaded. This will quickly
identify any coding problems in your application.

-- 
Howard M. Lewis Ship

Creator of Apache Tapestry

The source for Tapestry training, mentoring and support. Contact me to
learn how I can get you up and productive in Tapestry fast!

(971) 678-5210
http://howardlewisship.com

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