Model: TI-PG541i
Hardware Version: v1.0R
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Firmware Version: 1.1.2.S0
Release Date: 2/2019
-Fixed SNMP OID
-Added Netlite device map
-Added ONVIF device discovery
-Added loopback detection
-Added DHCP relay/option 82
-Added Modbus/TCP
-Added SFP DDMI
-Added 802.1X authentication 
-Added DHCP snooping/screening
-Added static/dynamic ARP inspection
-Added port security/MAC address learning restriction
-Added access control lists
-Added STP/RSTP spanning tree support
-Added BPDU filter, guard, root guard
-Added static and dynamic link aggregation
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Firmware Version: 1.1.1.S0
Release Date: 10/2018
-Added capability to control PoE using SNMP MIB
-Fixed GUI login page appearance
-Added password masking to login page
-SSH key is randomly generated when switch is reset to factory default
-Modified default SNTP settings
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Firmware Version: 1.1.1.D0
Release Date: 8/2017
-Added capability to enable/disable HTTP/SSH/Telnet management access
-Added capability to change HTTP/Telnet management ports
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Firmware Version: 1.0.9.S0
Release Date: 5/2016
-Initial Release