On the server side I did an uninstall of RC2 and then installed Beta 3. The user upgraded his client to Beta 3 from RC2 without an uninstall. Did one of us do something wrong?

com.ibm.team.repository.common.transport.VersionMismatchException: CRJAZ1176I There is a version mismatch for the 'com.ibm.team.process.internal.common.service.IProcessService' service. The Server version is '7.0' while the client version is '8.0'. Both client and server version must match. Check the overall version of the client using Help->About and ensure it is compatible with server version '0.9.0' and build id '1.0 RC2'.
at com.ibm.team.repository.transport.client.ClientHttpUtil.throwHttpClientError(ClientHttpUtil.java:290)
at com.ibm.team.repository.transport.client.ClientHttpUtil.executeHttpMethod(ClientHttpUtil.java:264)
at com.ibm.team.repository.transport.client.RemoteTeamService.executeCancelableHttpMethod(RemoteTeamService.java:514)
at com.ibm.team.repository.transport.client.RemoteTeamService.invokePost(RemoteTeamService.java:504)
at com.ibm.team.repository.transport.client.RemoteTeamService.executeMethod(RemoteTeamService.java:449)
at com.ibm.team.repository.transport.client.RemoteTeamService.invoke(RemoteTeamService.java:184)
at com.ibm.team.repository.transport.client.ServiceInvocationHandler.invoke(ServiceInvocationHandler.java:43)
at $Proxy26.findTeamAreas(Unknown Source)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:79)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:618)
at com.ibm.team.repository.client.internal.ServiceInterfaceProxy.invokeServiceCall(ServiceInterfaceProxy.java:149)
at com.ibm.team.repository.client.internal.ServiceInterfaceProxy.invoke(ServiceInterfaceProxy.java:84)
at $Proxy26.findTeamAreas(Unknown Source)
at com.ibm.team.process.internal.client.ProcessClientService$17.run(ProcessClientService.java:799)
at com.ibm.team.repository.client.internal.TeamRepository$3.run(TeamRepository.java:1123)
at com.ibm.team.repository.common.transport.CancelableCaller.call(CancelableCaller.java:76)
at com.ibm.team.repository.client.internal.TeamRepository.callCancelableService(TeamRepository.java:1116)
at com.ibm.team.process.internal.client.ProcessClientService.findTeamAreas(ProcessClientService.java:793)
at com.ibm.team.process.internal.ide.ui.MyTeamAreasContentProvider.collectUserTeamAreas(MyTeamAreasContentProvider.java:391)
at com.ibm.team.process.internal.ide.ui.MyTeamAreasContentProvider.computeChildren(MyTeamAreasContentProvider.java:164)
at com.ibm.team.process.internal.ide.ui.MyTeamAreasContentProvider.fetchDeferredChildren(MyTeamAreasContentProvider.java:150)
at org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:196)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
Caused by: com.ibm.team.repository.common.transport.TeamServiceException: CRJAZ0098I Return code 400 from http request: Bad Request
at com.ibm.team.repository.transport.client.ClientHttpUtil.throwHttpClientError(ClientHttpUtil.java:282)
... 24 more
Caused by: com.ibm.team.repository.common.transport.VersionMismatchException: CRJAZ1176I There is a version mismatch for the 'com.ibm.team.process.internal.common.service.IProcessService' service. The Server version is '7.0' while the client version is '8.0'. Both client and server version must match. Check the overall version of the client using Help->About and ensure it is compatible with server version '0.9.0' and build id '1.0 RC2'.
at com.ibm.team.repository.servlet.AbstractTeamServerServlet.service(AbstractTeamServerServlet.java:1336)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.eclipse.equinox.http.registry.internal.ServletManager$ServletWrapper.service(ServletManager.java:180)
at org.eclipse.equinox.http.servlet.internal.ServletRegistration.handleRequest(ServletRegistration.java:90)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.processAlias(ProxyServlet.java:111)
at org.eclipse.equinox.http.servlet.internal.ProxyServlet.service(ProxyServlet.java:75)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.eclipse.equinox.servletbridge.BridgeServlet.service(BridgeServlet.java:115)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:269)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:525)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:870)
at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:665)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:528)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:81)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685)
at java.lang.Thread.run(Thread.java:810)
at com.ibm.team.repository.common.internal.marshal.util.MarshallerUtil.decodeExceptions(MarshallerUtil.java:321)
at com.ibm.team.repository.common.internal.marshal.util.MarshallerUtil.decodeFault(MarshallerUtil.java:260)
at com.ibm.team.repository.transport.client.ClientHttpUtil.constructExceptionFromFault(ClientHttpUtil.java:417)
at com.ibm.team.repository.transport.client.ClientHttpUtil.appendNestedException(ClientHttpUtil.java:396)
at com.ibm.team.repository.transport.client.ClientHttpUtil.throwHttpClientError(ClientHttpUtil.java:286)
... 24 more