BR20 Release Notes (autoextracted) - 2023/10/17 
2023.10b  MPFS12 Test release.
--------- RELEASE NOTES (LATEST ON TOP)---------------------
Added optn Vol jump filter (norm disable),           2023.10b
added message "Set MAX Vol dB" when is EEPROM redefaulted
Fixing MENU bug                                      2023.10a
ReEnablePIcmds after BREAK: 1s --> 0.33s REVERTED   (2023.08e)
Turned off FPGS program display.                     2023.08d
Fixed saving of the status bit2 (ETH on in stby)     2023.08c
Restored, same as 07b                                2023.08b
Cleared I/O expander outputs in Standby              2023.07b
Changed timings for switch-on XUSB and I2C1/4 bus.   2023.07a
Changed FIRMWARE LINK PATH to 
 http://support.bryston.com/downloads/BR-20/Firmware/ 
and in WebPages2/firmwareup.htm                      2023.06e
Adjusted timing for FPGA, PI USB startup             2023.06c
Changed PCA0_IO1 to out as HD_CLK_SUB (norm 0)       2023.06b
Working payload.h N=3588 FPGA for MB4 (autodetect)   2023.06a
Added cmd #10INITFPGA for FPGA on BR20 MB4.0         2023.03a 
Fixed BR20BC web GUI fw path bugs,test server calls  2022.12a,b
Recomped bootloader 2022.11 for Pic32mx695F512L      2022.11a
Fixed missing balance init in volume_init.           2022.09a
Implementing anti-PI-spam protection, vol prob.      2022.08b
Fixed balance.cgi bug.                               2022.06a
Fixed a bug in 05d of calling UpdateSPDIF in PI.     2022.05e
Reduced "TCPIP WByte TOut" from 1m to 10s.           2022.05d
fixed SPDIF loss of lock in pwrup at 96k+.     
Prevented spurious src sw by PI in shutdown,
Fixed PI play track display restore after volume.    2022.05c
Added global save and restore all names.             2022.05b
Added global trigger1 and trigger2 dflt menu.  
Enabled I2C_DEBUG_DUMP_ENABLE (uses RS232).          2022.05a
TESTMODE flag disables 0-cross halting.
Fixed auto initialization on blank unit.	          2022.04x
Changed VOL_MAX_SAFE_mB to -4000 (-40dB)	          2022.04c
Fixed switched channel output trigg bug.             2022.04b
Added SYSTEM INFO-->TRIGR OUT SETUP screen.          2022.04a
Fixed 5s OK ping to PI to recover missing ack.       2022.03e
Scrn saver disable by select even Brightness value.
Added temporary mute for PI-AnalogBYPASS-PI switching.
Fixed Default EEPROM-MUTE-0dB volume bug
Added PI cmd GETOUTPUT.                              2022.03d
Fixed BCON cmd responses: HEADPHONEOUT and STANDARDOUT.                         
Added #10RATE command.                               2022.03c
Fixed VOL_DFLT_MAXVOL_mB bug. Reverted to +12dB      2022.03b
releases for Roon 22-03-04 or later.                 2022.03a
Modified disp refresh to accomodate PI
Changed scr saver to 20 minutes.                     2022.02x MkXI
Added OLED scr saver 60s. Deflt Vol Max=0dB.         2022.02x MkX
Fixed memory leakage in pi_Open                      2022.02x MkIX
Fixing IO6 UART reset (1360)                         2022.02x MkVIII
Fixing crash in pi.c buf[16], s_rx_overrun (1359).   2022.02x MkVII
Added SAVEBITMAP and PI cmds overrun protection.     2022.02x MkIV
Appended \n byte after .END. for all PI commds.      2022.02x MkIII
Added reject SAVEBITMAP cmd by g_executing_vol_flg   2022.02l MkIII
Added GG mod for g_p2p2_pause_flg                    2022.02l
Made BAUD_RATE=PI_BAUDRATE_Hz=9600/115200            2022.02d
Set PI_BAUDRATE_Hz=115200 (was 9600)                 2022.02c
Protected PI initialization
Speeded up PI command response.                      2022.01f
Sent to server evry 24h or on powered on and stndby. 2022.01e
Muted analog pop after power-on.                     2022.01d
Inverted IO5, active low.                            2022.01c
Made TRIG per source, not global.                    2021.11e
Added antipopping mute in HDMI-DSD                   2021.11d
Added vol enc filter against UDU and DUD events      2021.11c
Fix p2p2 interpt stuck with g_inside_update==1, 
Added more robust PI RX buffer overrun protection.   2021.11b
Fixed spurious input name on disp. after switching.  2021.11a
---- OLDEST RELEASE NOTES -------------------------------------