/*****************************************************************************/
/*                                                                           */
/*                  --- CAEN SpA - Computing Division ---                    */
/*                                                                           */
/*   CAEN SY4527/SY5527 HV Control Firmware Release Notes                    */
/*                                                                           */
/*   Rel. 2.3.1 - February  2025                                             */
/*   Rel. 2.3.0 - January   2025                                             */
/*   Rel. 2.2.1 - June      2024                                             */
/*   Rel. 2.2.0 - April     2024                                             */
/*   Rel. 2.1.1 - January   2023                                             */
/*   Rel. 2.1.0 - November  2022                                             */
/*   Rel. 2.0.4 - September 2022                                             */
/*   Rel. 2.0.3 - July      2021                                             */
/*   Rel. 2.0.2 - March     2019                                             */
/*   Rel. 2.0.1 - July      2018                                             */
/*   Rel. 2.0.0 - June      2018                                             */
/*   Rel. 1.4.0 - April     2017                                             */
/*   Rel. 1.3.1 - June      2015                                             */
/*   Rel. 1.3.0 - March     2014                                             */
/*   Rel. 1.2.3 - January   2014                                             */
/*   Rel. 1.2.2 - December  2013                                             */
/*   Rel. 1.2.1 - October   2013                                             */
/*   Rel. 1.2.0 - September 2013                                             */
/*   Rel. 1.1.4 - March     2013                                             */
/*   Rel. 1.1.3 - December  2012                                             */
/*   Rel. 1.1.2 - November  2012                                             */
/*   Rel. 1.1.1 - October   2012                                             */
/*   Rel. 1.1   - July      2012                                             */
/*   Rel. 1.0   - March     2012                                             */
/*                                                                           */
/*****************************************************************************/


  Description
  -----------

  This document is updated for every official release of the CAEN SY4527/SY5527
  and it contains various information specific to this firmware which 
  can not be found in the User's Manual, available together with the software 
  or on the CAEN web site: www.caen.it.


  System Requirements
  -------------------
  
  - SY4527/SY5527 Universal Multichannel Power Supply System
  - SY4527LC/SSY5527LC Universal Multichannel Power Supply System (Low Cost)


  What's New in Rel. 2.3.0 and Rel. 2.3.1
  --------------------------
 
  - fixed bug in handling boards without firmware (waiting for firmware download)
  - added items to change ip address and gateway
  - added support for main power supply A4531B
  - upgraded FPGA firmware to 0.17

  What's New in Rel. 2.2.1
  --------------------------
  
  - Fixed a bug in the subscription feature that returned an invalid handle when subscribing to a large number of items, if the client was not ready to receive event information in the meantime.

  What's New in Rel. 2.2.0
  --------------------------
  
   - upgraded ssh server to support ecdsa algorithm
   - add control over the fans to avoid setting the speed slow inadvertently
   - upgraded FPGA firmware to 0.10 version
   - added support to encrypted authentication

  What's New in Rel. 2.1.1
  --------------------------
  
   - updated new fpga version 0.9 that fix a bug that happened during a reboot ( a backaplain signal was not correctly driven on reboot)

  What's New in Rel. 2.1.0
  --------------------------

   - fixed bug on subscribe/unsubsribe funcionality
   - fixed bug that creates an internal deadlock, caused by a crash (in a specific case) of a client

  What's New in Rel. 2.0.3 and Rel. 2.0.4
  --------------------------

   - fixed the hardware drivers for WiFi feature 

  What's New in Rel. 2.0.2
  --------------------------

   - bug fixes on CAEN Analytics

  What's New in Rel. 2.0.1
  --------------------------

   - fixed bug on A1676A Board parameter management
   - fixed bug on connection ( connection flood bug )

  What's New in Rel. 2.0.0
  --------------------------

   - improved connection stability for HVWrapper communications
   - redesigned internal core routines to improve performances and fix a bug on items update
   - added DHCP Server status as system parameter
 
  What's New in Rel. 1.4.0
  --------------------------

   - modified the remote access shell adding channels management, channels groups
   - removed "telnet" user
   - fix bug on "Transparent Mode" that freezed the system if transparent mode was not closed correctly.
   - updated fpga firmware to modify the fan speed for "low" level
   - removed the stop of the fan speed (now the fan "low" speed is guaranteed even if the crate is empty).

  What's New in Rel. 1.3.1
  --------------------------

   - add "telnet" user. The telnet user can login via ssh and operate with console interface like the old Sy1527 telnet interface 
 
  What's New in Rel. 1.3.0
  --------------------------

   - add support for autodetect 

  What's New in Rel. 1.2.3
  --------------------------

   - Fixed bug on firmware that caused the blocked of fun speed variation from front panel command
   - Bug Fixed on ResFlagCfg setting
   - Bug Fixed on OutputLevel setting
 
  What's New in Rel. 1.2.2
  --------------------------

   - Bug Fixed on Set SymbolicName
   - Bug Fixed on multiple session open
   - Bug Fixed introduced with 1.2.0 version (missing set info to multiple GECO 2020 connected to SY4527)
    
 
  What's New in Rel. 1.2.1
  --------------------------

   - Bug Fixed on getCrateMap on SY4527LC and SY5527LC

  What's New in Rel. 1.2.0
  --------------------------

   - Add CmdExecMode System parameter
   - Add DummyReg System parameter
   - Add support for SY4527LC and SY5527LC
   - Bug Fixed on BackPlain reset on power on

  What's New in Rel. 1.1.4
  --------------------------

   - Bug fix on enabling "advanced license" on SY5527

  What's New in Rel. 1.1.3
  --------------------------

   - Bug fix on using A1676A Branch Controller

  What's New in Rel. 1.1.2
  --------------------------

   - Bug fix on channels pw on 
   - Bug fix on crate map detection (wrong live insertion messages)
   - Bug fix on CommandQueueStatus
   - Bug fix on Fan control
   - Bug fix on power monitor 
   - Add fan status restore control 

  What's New in Rel. 1.1.1
  --------------------------

   - Bug fix on Interlock cmd
   - Bug fix on Kill cmd
   - Upgraded FPGA firmware to 0.05

  What's New in Rel. 1.1
  --------------------------

   - Add security access level (admin/user/guest)
   - Add advanced feature license support
   - Bug fix on multiple connections
   - Bug fix on subscribe routine
   - Bug fix on reset flag configuration
   - Bug fix on GenSign configuration   
   - Bug fix on change level (NIM/TTL)
       
  What's New in Rel. 1.0
  --------------------------

   - First release        


  Determining Your Firmware Release
  ---------------------------------

  To determine the complete software release of the SY4527/SY5527 CAEN Universal 
  Power Supply system, you can use the webinterface of the system and open the 
  right sidebar
  
  You will see something like: 
                               HV Control firmware version
                               1.1.0 - build xxxxxxxx

  How to get support
  ------------------

  For technical support, go to https://www.caen.it/mycaen/support/ (login and MyCAEN+ account required)