***********************************
*           XWHEP-5.9.0           *
*---------------------------------*
* Released date : Apr 28th, 2010  *
* Author : Oleg Lodygensky        *
*          lodygens@lal.in2p3.fr  *
***********************************

-A- Corrections

-A.1- Mac OS X installers updated : it is now compliant with all versions (including 10.6)
-A.2-  XML (un)marshalling from/to stream cleaned : performances increased at more than 20%
-A.3- Removed scripts : xwhepgenserverkey, xwhepgenworkerkey, xwhepgenclientkey
      Replaced by script : xwhepgenkeys
      This last is generated by xwconfigure


-B- New features

-B.1- the platform is now able to update the server public key
      This works if and only if the server key has not expired yet
      Purpose  : keep a deployment alive even if the server keys expires
      What     : distribute new server public key (automatically) to workers and (on demand) to client
      When     : before the actual server key expires
      How      : use the script xwhepgenkeys to add new key to keystores
                 insert worker keystore (containing both actual and new server public keys) as public data in XWHEP server
                 stop the server
                 set keystore.uri variable in xtremweb.server.conf
                 restart the server
      Security : This does not break security since
                 - workers and clients must have the current server public key to connect to server
                 - updated keystore is then distributed through encrypted communication channel
                 - workers and client must have valid credentials to connect to server
                 - workers and client safely keep keystores
                 - distributed keytore contains server public keys only


-C- Known Bugs

-C.1- Result download errors reported using 'xwdownload', but not with 'xwresult'
  We have not been able to reproduce them
  If you encounter these, please send us log file in DEBUG mode
-C.2- xtremweb.gmond.pl does not scale