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For backwards compatibility, you may continue to use the old namespace URIs: http://tapestry.apache.org/schema/tapestry_5_0_0.xsd or http://tapestry.apache.org/schema/tapestry_5_1_0.xsd or http://tapestry.apache.org/schema/tapestry_5_3.xsd
However, the following elements added, as part of Tapestry 5.1, will not work with the 5_0_0.xsd:
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