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   Apache TomcatApache Logo                                                  
   ---------------------------------------------------------------------------
            The Apache Tomcat Connector - News                               
                                                                             
   2011 News and Status                                                      
                                                                             
   2011 News & Status                                                        
     8 July - JK-1.2.32 released                                             
       The Apache Tomcat team is proud to announce the immediate             
       availability of Tomcat Connectors 1.2.32. This is a stable release    
       concentrating mainly on some bug fixes.                               
                                                                             
       Please see the ChangeLog for a full list of changes.                  
                                                                             
       If you find any bugs while using this release, please fill in the     
       Bugzilla Bug Report.                                                  
   ---------------------------------------------------------------------------
               Copyright � 1999-2011, Apache Software Foundation             
   Apache TomcatApache Logo                                                  
   ---------------------------------------------------------------------------
            The Apache Tomcat Connector - News                               
                                                                             
   2010 News and Status                                                      
                                                                             
   2010 News & Status                                                        
     1 November - JK-1.2.31 released                                         
       The Apache Tomcat team is proud to announce the immediate             
       availability of Tomcat Connectors 1.2.31. This is a stable release    
       concentrating mainly on some bug fixes.                               
                                                                             
       Please see the ChangeLog for a full list of changes.                  
                                                                             
       If you find any bugs while using this release, please fill in the     
       Bugzilla Bug Report.                                                  
                                                                             
     1 March - JK-1.2.30 released                                            
       The Apache Tomcat team is proud to announce the immediate             
       availability of Tomcat Connectors 1.2.30. This is a stable release    
       concentrating mainly on some bug fixes.                               
                                                                             
       Please see the ChangeLog for a full list of changes.                  
                                                                             
       If you find any bugs while using this release, please fill in the     
       Bugzilla Bug Report.                                                  
                                                                             
     1 March - JK-1.2.29 withdrawn                                           
       Tomcat Connectors 1.2.29 has been withdrawn because of regression     
       inside Microsoft IIS connector.                                       
                                                                             
     26 February - JK-1.2.29 released                                        
       The Apache Tomcat team is proud to announce the immediate             
       availability of Tomcat Connectors 1.2.29. This is a stable release    
       concentrating mainly on some bug fixes.                               
                                                                             
       Please see the ChangeLog for a full list of changes.                  
                                                                             
       If you find any bugs while using this release, please fill in the     
       Bugzilla Bug Report.                                                  
   ---------------------------------------------------------------------------
               Copyright � 1999-2011, Apache Software Foundation             
   Apache TomcatApache Logo                                                  
   ---------------------------------------------------------------------------
            The Apache Tomcat Connector - News                               
                                                                             
   2009 News and Status                                                      
                                                                             
   2009 News & Status                                                        
     22 March - JK-1.2.28 released                                           
       The Apache Tomcat team is proud to announce the immediate             
       availability of Tomcat Connectors 1.2.28. This is a stable release    
       concentrating mainly on some bug fixes.                               
                                                                             
       Please see the ChangeLog for a full list of changes.                  
                                                                             
       If you find any bugs while using this release, please fill in the     
       Bugzilla Bug Report.                                                  
                                                                             
       The most important new features in this version are:                  
                                                                             
       Better Error Detection for Load Balancer Workers                      
                                                                             
       Local and global error states have been improved. You can fine tune   
       the behaviour with the new "error_escalation_time" attribute (see the 
       timeouts documentation).                                              
                                                                             
       Dynamic Address and Port Change Using the Status Worker               
                                                                             
       The status worker now allows you to change the address and the port   
       of an AJP13 worker on the fly. You can e.g. provision dummy workers   
       with a port equal to "0", which will be automatically put into        
       stopped mode during startup. Later, when you want to actually use     
       thse workers, you set their address and port to the final values.     
                                                                             
       Note that already existing connections will go on using the old       
       address and port. This will be improved in future versions.           
                                                                             
       New Data in Status Worker Display                                     
                                                                             
       The status worker display now also contains the timestamp of the last 
       worker errors.                                                        
                                                                             
       Improved Proxy Flexibility                                            
                                                                             
       You can now overwrite more request metadata before the request gets   
       send to the backend. This is helpful in case there are other reverse  
       proxies in front of your web server. A new documentation page         
       explains this in detail.                                              
                                                                             
       Improved IIS Support                                                  
                                                                             
       IIS support has been improved especially when using mutltiple         
       application pools. Furthermore you can now configure the ISAPI plugin 
       to update the uriworkermap.properies file on a regular interval using 
       the watchdog thread.                                                  
                                                                             
       JNI Worker Deprecation                                                
                                                                             
       Workers of type jni are broken since a long time. Since there is no   
       more use for them, they have been deprecated now, and will be removed 
       in a future release.                                                  
   ---------------------------------------------------------------------------
               Copyright � 1999-2011, Apache Software Foundation             
   Apache TomcatApache Logo                                                  
   ---------------------------------------------------------------------------
            The Apache Tomcat Connector - News                               
                                                                             
   2008 News and Status                                                      
                                                                             
   2008 News & Status                                                        
     28 October - JK-1.2.27 released                                         
       The Apache Tomcat team is proud to announce the immediate             
       availability of Tomcat Connectors 1.2.27. This is a stable release    
       adding lots of new features and some bug fixes.                       
                                                                             
       Please see the ChangeLog for a full list of changes.                  
                                                                             
       If you find any bugs while using this release, please fill in the     
       Bugzilla Bug Report.                                                  
                                                                             
       The most important new features in this version are:                  
                                                                             
       Watchdog Thread for Periodic Tasks                                    
                                                                             
       The connector has to run some periodic tasks independant of request   
       processing. Examples are probing or closing down idle backend         
       connections, adjusting load numbers and recovering workers from error 
       state.                                                                
                                                                             
       Before version 1.2.27 these tasks were done inside the request        
       processing loop. When a new request came in and the task was due, the 
       thread handling the request first executed the internal task and then 
       handled the request. If there were no requests coming in, the tasks   
       would not run. If any of the tasks took unexpectedly long, the        
       response time of the request waiting for the finishing of the task    
       went up.                                                              
                                                                             
       Starting with this release you can configure a separate watchdog      
       thread inside the web server to run all those tasks independantly of  
       request processing. This new feature is avaliable for the connector   
       when used with Apache httpd 2.x or with Microsoft IIS. To keep the    
       behaviour of the new version consistent with previous releases, this  
       feature is turned off by default. You can activate the watchdog       
       thread via JkWatchdogInterval for Apache or watchdog_interval for     
       IIS.                                                                  
                                                                             
       Connection Probing                                                    
                                                                             
       In previous releases connection probing (checking whether connections 
       still work) could only be done immediately after a new connection was 
       established and directly before sending each request. Since we now    
       have the watchdog thread available, we also added a periodic probing  
       option, which you can activate with the worker attribute ping_mode.   
       This will also be useful as a protection against the infamous         
       firewall idle connection drop.                                        
                                                                             
       The older attributes connect_timeout and prepost_timeout still exist  
       and work the same way they did in previous releases. Since there are  
       now three different probing options, we recommend to migrate your     
       configuration to the newer attributes ping_mode, ping_timeout and     
       connection_ping_interval.                                             
                                                                             
       Mount Extensions                                                      
                                                                             
       Usually one defines workers and mounts for the connector. A worker    
       defines a backend we want to talk to and the configuration parameters 
       of the communication, connection pools etc. The mounts define which   
       URIs we want to forward to which worker (so we also call a mount an   
       URI map rule). In version 1.2.27 you can overwrite certain worker     
       parameter per mount.                                                  
                                                                             
       One easy to understand example is reply timeouts. Until this release  
       you had to specify a reply timeout for the whole worker. But reply    
       times depend a lot on the type of request. So normally you want to    
       define a general reply timeout and for some special URLs you need to  
       relax the reply timeout, because you know those URLs take much longer 
       to process (like e.g. reporting or other compute intensive tasks).    
                                                                             
       Another possible case is the activation status. You might use a load  
       balancer worker to forward requests to certain webapps in a farm of   
       Tomcat nodes. If you wanted to update some webapp on one node, you    
       previously had to stop forwarding requests for all webapps on this    
       Tomcat node. What was not possible until now, was stopping forwarding 
       requests restricted to the webapp and the node you wanted to update.  
                                                                             
       Starting with this release, you can add so-called rule extensions to  
       your uriworkermap file to influence worker parameters per mount. This 
       will work for all Apache versions and for IIS. Remember, that the     
       uriworkermap file automatically gets reloaded after changes without   
       web server restart.                                                   
                                                                             
       Improved IIS support                                                  
                                                                             
       We improved IIS support im various ways. It is now possible to use    
       multiple IIS 6 application pools with the ISAPI redirector.           
                                                                             
       Furthermore some improvements were added as compile time features.    
       The most notable one is chunked encoding support, which was a major   
       refactoring and is therefore still considered experimental. You can   
       download binaries with and without chunked encoding support. In       
       future versions, chunked encoding will likely be availabe in all      
       builds.                                                               
                                                                             
       Another new feature is an elegant way of configuring error page       
       redirects. All new features are documented on the documentation page  
       about configuring IIS.                                                
                                                                             
       Enhanced Status Worker                                                
                                                                             
       The status worker now can also manage and show statistics for AJP     
       workers that are not part of a load balancer. Other improvements are  
       the new dump action, the integration of the new configuration         
       attributes, showing average request and transfer rates since the last 
       statistics reset and the ability to display only a single member of a 
       load balancer.                                                        
                                                                             
       Unfortunately we had to change some request parameters used for the   
       update action of the status worker.                                   
                                                                             
       Miscellaneous Improvements                                            
                                                                             
       Further enhancements are:                                             
                                                                             
         * Configurable session stickyness indicator: cookie name and URL    
           path parameter name can be freely chosen instead of the servlet   
           spec compliant JSESSIONID and ;jsessionid.                        
         * Automatically determining the size of the shared memory segment   
           needed to accommodate all workers.                                
         * New connection establishment timeout socket_connect_timeout.      
         * New timeout connection_acquire_timeout for acquiring a free       
           connection from the pool.                                         
         * Improved retry handling by adjusting the meaning of the attribute 
           retries for AJP workers and for load balancers and by adding the  
           new retry_interval.                                               
         * Allowing the web server to provide error pages instead of Tomcat. 
   ---------------------------------------------------------------------------
               Copyright � 1999-2011, Apache Software Foundation             
   Apache TomcatApache Logo                                                  
   ---------------------------------------------------------------------------
            The Apache Tomcat Connector - News                               
                                                                             
   2007 News and Status                                                      
                                                                             
   2007 News & Status                                                        
     21 December - JK-1.2.26 released                                        
                                                                             
     The Apache Tomcat team is proud to announce the immediate availability  
     of Tomcat Connectors 1.2.26. This is a stable release adding few new    
     features and some bug fixes.                                            
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs while using this release, please fill in the       
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
   --------------------------------------------------------------------------
                                                                             
     7 August - JK-1.2.25 released                                           
                                                                             
     The Apache Tomcat team is proud to announce the immediate availability  
     of Tomcat Connectors 1.2.25. This is a stable release adding new        
     features and a few bug fixes.                                           
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs while using this release, please fill in the       
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
   --------------------------------------------------------------------------
                                                                             
     27 July - JK-1.2.24 released                                            
                                                                             
     This release has been withdrawn.                                        
                                                                             
   --------------------------------------------------------------------------
                                                                             
     18 May - JK-1.2.23 released                                             
                                                                             
     The Apache Tomcat team is proud to announce the immediate availability  
     of Tomcat Connectors 1.2.23. This is a stable release adding new        
     features and a few bug fixes to version 1.2.23.                         
                                                                             
     It fixes an Important vulnerability.                                    
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs while using this release, please fill in the       
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
   --------------------------------------------------------------------------
                                                                             
     17 April - JK-1.2.22 released                                           
                                                                             
     The Apache Tomcat team is proud to announce the immediate availability  
     of Tomcat Connectors 1.2.22. This is a stable release adding new        
     features and a few bug fixes to version 1.2.22.                         
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs while using this release, please fill in the       
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
   --------------------------------------------------------------------------
                                                                             
     1 March - JK-1.2.21 released                                            
                                                                             
     The Apache Tomcat team is proud to announce the immediate availability  
     of Tomcat Connectors 1.2.21. This is a stable release adding new        
     features and a few bug fixes to version 1.2.20.                         
                                                                             
     It fixes a Critical vulnerability introduced in version 1.2.19          
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs while using this release, please fill in the       
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
   --------------------------------------------------------------------------
   ---------------------------------------------------------------------------
               Copyright � 1999-2011, Apache Software Foundation             
   Apache TomcatApache Logo                                                  
   ---------------------------------------------------------------------------
            The Apache Tomcat Connector - News                               
                                                                             
   2006 News and Status                                                      
                                                                             
   2006 News & Status                                                        
     10 December - JK-1.2.20 released                                        
                                                                             
     The Apache Tomcat team is proud to announce the immediate availability  
     of Tomcat Connectors 1.2.20. This is a stable release adding new        
     features and a few bug fixes to version 1.2.19. Furthermore the         
     documentation has been reorganised.                                     
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs while using this release, please fill in the       
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
   --------------------------------------------------------------------------
                                                                             
     17 September - JK-1.2.19 released                                       
                                                                             
     The Apache Tomcat team is proud to announce the immediate availability  
     of Tomcat Connectors 1.2.19. This is a stable release adding some       
     features and a few bug fixes to version 1.2.18. Furthermore the         
     non-functional code trees for isapi and domino have been removed.       
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs while using this release, please fill in the       
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
   --------------------------------------------------------------------------
                                                                             
     13 July - JK-1.2.18 released                                            
                                                                             
     The Apache Tomcat team is proud to announce the immediate availability  
     of Tomcat Connectors 1.2.18. This is a stable release adding a few bug  
     fixes to the not released 1.2.17 version.                               
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs while using this release, please fill in the       
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
   --------------------------------------------------------------------------
                                                                             
     JK-1.2.17 not released                                                  
                                                                             
     Version 1.2.17 of Tomcat Connectors 1.2.17 has not been released due to 
     a bug in the types chosen for socket arguments.                         
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
   --------------------------------------------------------------------------
                                                                             
     JK-1.2.16 not released                                                  
                                                                             
     Version 1.2.16 of Tomcat Connectors 1.2.16 has not been released due to 
     a bug in the jk status worker. This version adds some features and a    
     few bug fixes to the 1.2.15 version. Furthermore some worker attributes 
     have been deprecated.                                                   
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
   --------------------------------------------------------------------------
   ---------------------------------------------------------------------------
               Copyright � 1999-2011, Apache Software Foundation             
   Apache TomcatApache Logo                                                  
   ---------------------------------------------------------------------------
            The Apache Tomcat Connector - News                               
                                                                             
   2005 News and Status                                                      
                                                                             
   2005 News & Status                                                        
     8 November - JK-1.2.15 released                                         
                                                                             
     The Apache Tomcat team is proud to announce the immediate availability  
     of Jakarta Tomcat Connectors 1.2.15. This is Stable release and it      
     contains few bug fixes found in 1.2.14 version.                         
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs while using this release, please fill in the       
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
   --------------------------------------------------------------------------
                                                                             
     13 July - JK-1.2.14 released                                            
                                                                             
     The Apache Tomcat team is proud to announce the immediate availability  
     of Jakarta Tomcat Connectors 1.2.14. This is Stable release and it      
     contains few bug fixes found in 1.2.13 version.                         
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs while using this release, please fill in the       
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
   --------------------------------------------------------------------------
                                                                             
     7 May - JK-1.2.13 released                                              
                                                                             
     The Apache Jakarta Tomcat team is proud to announce the immediate       
     availability of Jakarta Tomcat Connectors 1.2.13. This is development   
     release and contains few bug fixes found in 1.2.12 version.             
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs while using this release, please fill in the       
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
   --------------------------------------------------------------------------
                                                                             
     7 May - JK-1.2.12 released                                              
                                                                             
     The Apache Jakarta Tomcat team is proud to announce the immediate       
     availability of Jakarta Tomcat Connectors 1.2.12 The release contains a 
     significant number of bug fixes and new features.                       
                                                                             
     We expect it to be ratified as a Stable release when the vote takes     
     place in the next week.                                                 
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs while using this release, please fill in the       
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
   --------------------------------------------------------------------------
                                                                             
     29 April - JK-1.2.11 released                                           
                                                                             
     The Apache Jakarta Tomcat team is proud to announce the immediate       
     availability of Jakarta Tomcat Connectors 1.2.11 The release contains a 
     significant number of bug fixes and new features.                       
                                                                             
     This version has not been released.                                     
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs while using this release, please fill in the       
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
   --------------------------------------------------------------------------
                                                                             
     30 March - JK-1.2.10 released                                           
                                                                             
     The Apache Jakarta Tomcat team is proud to announce the immediate       
     availability of Jakarta Tomcat Connectors 1.2.10 The release contains a 
     significant number of bug fixes and new features.                       
                                                                             
     We expect it to be ratified as a Stable release when the vote takes     
     place in the next two weeks.                                            
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     Since release 1.2.10 the JkShmFile property has been added for Apache   
     1.3.x and Apache 2.x web servers on UNIX and LINUX platforms. Load      
     balancer will not work properly if this directive is not present.       
                                                                             
     If you find any bugs while using this release, please fill in the       
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
   --------------------------------------------------------------------------
                                                                             
     18 March - JK-1.2.9-beta released                                       
                                                                             
     The Apache Jakarta Tomcat team is proud to announce the immediate       
     availability of Jakarta Tomcat Connectors 1.2.9-beta. The release       
     contains a significant number of bug fixes and new features.            
                                                                             
     We expect it to be ratified as a Stable release when the vote takes     
     place in the next two weeks.                                            
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     Since release 1.2.9 the JkShmFile property has been added for Apache    
     1.3.x and Apache 2.x web servers on UNIX and LINUX platforms. Load      
     balancer will not work properly if this directive is not present.       
                                                                             
     If you find any bugs during testing this release, please fill in the    
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
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   Apache TomcatApache Logo                                                  
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            The Apache Tomcat Connector - News                               
                                                                             
   2004 News and Status                                                      
                                                                             
   2004 News & Status                                                        
     17 December - JK-1.2.8 released                                         
                                                                             
     The Apache Jakarta Tomcat team is proud to announce the immediate       
     availability of Jakarta Tomcat Connectors 1.2.8.                        
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs during testing this release, please fill in the    
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
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     17 December - JK-1.2.8-rc-1 released                                    
                                                                             
     The Apache Jakarta Tomcat team is proud to announce the immediate       
     availability of Jakarta Tomcat Connectors 1.2.8-rc-1 (Relase Canditate  
     1).                                                                     
                                                                             
     We expect it to be ratified as a Stable release when the vote takes     
     place in the next week.                                                 
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs during testing this release, please fill in the    
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
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     13 December - JK-1.2.7-beta-3 released                                  
                                                                             
     The Apache Jakarta Tomcat team is proud to announce the immediate       
     availability of Jakarta Tomcat Connectors 1.2.7-beta-3. The release     
     contains a fix to few configuration problems detected with              
     JK-1.2.7-beta-2 version.                                                
                                                                             
     We expect it to be ratified as a Stable release when the vote takes     
     place in the next week.                                                 
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs during testing this release, please fill in the    
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
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     7 December - JK-1.2.7-beta-2 released                                   
                                                                             
     The Apache Jakarta Tomcat team is proud to announce the immediate       
     availability of Jakarta Tomcat Connectors 1.2.7-beta-2. The release     
     contains a fix to few compilation problems detected with JK-1.2.7-beta  
     version. This release also introduces a new domain concept clustering   
     support. See 32317 for details.                                         
                                                                             
     We expect it to be ratified as a Stable release when the vote takes     
     place in the next two weeks.                                            
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     If you find any bugs during testing this release, please fill in the    
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
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     30 November - JK-1.2.7-beta released                                    
                                                                             
     The Apache Jakarta Tomcat team is proud to announce the immediate       
     availability of Jakarta Tomcat Connectors 1.2.7-beta. The release       
     contains a significant number of bug fixes and new features.            
                                                                             
     We expect it to be ratified as a Stable release when the vote takes     
     place in the next two weeks.                                            
                                                                             
     Please see the ChangeLog for a full list of changes.                    
                                                                             
     Since release 1.2.7 the socket_timeout property has been renamed to     
     recycle_timeout. The socket_timeout now sets the real timeout for       
     socket operations.                                                      
                                                                             
     If you find any bugs during testing this release, please fill in the    
     Bugzilla Bug Report. When entering bug select Native:JK Component.      
                                                                             
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     15 November - JK2 is officially unsupported                             
                                                                             
     JK2 has been put in maintainer mode and no further development will     
     take place. The reason for shutting down JK2 development was the lack   
     of developers interest. Other reason was lack of users interest in      
     adopting JK2, caused by configuration complexity when compared to JK.   
                                                                             
     The latest official JK2 release is 2.0.4.                               
                                                                             
     JK2 will have it's successor within core Apache2.1/2.2 distribution. We 
     have developed new proxy_ajp that is an addition to the mod_proxy and   
     uses Tomcat's AJP protocol stack. It is developped in httpd-2.1 and     
     integrated in it. We have also developed a new proxy_balancer module    
     for load balancing http and ajp protocol stacks.                        
                                                                             
     JK will be fully supported for all other web servers. The next JK       
     release is planned for the end of November. Lots of code from JK2 has   
     been ported to JK                                                       
                                                                             
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               Copyright � 1999-2011, Apache Software Foundation