The docs available from here
http://porkchop.devel.redhat.com/devel/candidates/JBEAP4.3.0/20090612/zip/
and here
http://porkchop.devel.redhat.com/devel/candidates/JBEAP4.3.0/20090624/zip/
differ. That might be fine, however the docs from 24th have following new files, not present in the previous one:
doc/examples/jboss-messaging-examples/bridge/build.xml.AS5
doc/examples/jboss-messaging-examples/destinations
doc/examples/jboss-messaging-examples/distributed-queue/build.xml.AS5
doc/examples/jboss-messaging-examples/distributed-topic/build.xml.AS5
doc/examples/jboss-messaging-examples/ejb3mdb/build.xml.AS5
doc/examples/jboss-messaging-examples/ejb3mdb/etc/META-INF/ejb-jar.xml
doc/examples/jboss-messaging-examples/ejb3mdb/etc/META-INF/jboss.xml
doc/examples/jboss-messaging-examples/http/build.xml.AS5
doc/examples/jboss-messaging-examples/mdb-failure/build.xml.AS5
doc/examples/jboss-messaging-examples/mdb/build.xml.AS5
doc/examples/jboss-messaging-examples/ordering-group
doc/examples/jboss-messaging-examples/queue-failover/build.xml.AS5
doc/examples/jboss-messaging-examples/queue/build.xml.AS5
doc/examples/jboss-messaging-examples/secure-socket/build.xml.AS5
doc/examples/jboss-messaging-examples/servlet
doc/examples/jboss-messaging-examples/stateless-clustered/build.xml.AS5
doc/examples/jboss-messaging-examples/stateless/build.xml.AS5
doc/examples/jboss-messaging-examples/topic/build.xml.AS5
doc/examples/jboss-messaging-examples/web-service/build.xml.AS5

And there is this file in the root dir:
readme.html~

Here's a complete list of files that differ, but that might be expected - providing it just for confirmation:
/doc/examples/jboss-messaging-examples/bridge/etc/test-bridge-service.xml
/doc/examples/jboss-messaging-examples/common/src/org/jboss/example/jms/common/ExampleSupport.java
/doc/examples/jboss-messaging-examples/distributed-queue/build.xml
/doc/examples/jboss-messaging-examples/distributed-queue/README.html
/doc/examples/jboss-messaging-examples/distributed-topic/build.xml
/doc/examples/jboss-messaging-examples/distributed-topic/README.html
/doc/examples/jboss-messaging-examples/ejb3mdb/build.xml
/doc/examples/jboss-messaging-examples/examples.properties
/doc/examples/jboss-messaging-examples/http/build.xml
/doc/examples/jboss-messaging-examples/http/etc/jndi.properties
/doc/examples/jboss-messaging-examples/http/README.html
/doc/examples/jboss-messaging-examples/mdb/build.xml
/doc/examples/jboss-messaging-examples/mdb-failure/build.xml
/doc/examples/jboss-messaging-examples/queue/build.xml
/doc/examples/jboss-messaging-examples/queue-failover/build.xml
/doc/examples/jboss-messaging-examples/queue-failover/README.html
/doc/examples/jboss-messaging-examples/secure-socket/build.xml
/doc/examples/jboss-messaging-examples/stateless/build.xml
/doc/examples/jboss-messaging-examples/stateless-clustered/build.xml
/doc/examples/jboss-messaging-examples/stateless-clustered/README.html
/doc/examples/jboss-messaging-examples/topic/build.xml
/doc/examples/jboss-messaging-examples/web-service/build.xml
/doc/examples/jboss-messaging-examples/web-service/src/org/jboss/example/jms/webservices/endpoint/WebServiceExampleImpl.java
/doc/examples/jboss-messaging-examples/web-service/src-client/org/jboss/example/jms/webservices/client/Client.java

This affects also the jar installer which installs the same content as the docs zip.