6.42.2 changelog:

*) bridge - do not allow to add same interface list to bridge more than once;
*) bridge - fixed LLDP packet receiving;
*) bridge - fixed processing of fragmented packets when hardware offloading is enabled;
*) console - fixed type "on" and "wireless-status" LED trigger value setting (introduced in v6.42.1);
*) crs317 - fixed link flapping when inserted S+RJ10 module without any cable;
*) defconf - fixed wAP LTE kit default configuration;
*) dhcpv4 - prevent sending out ICMP port unreachable packets;
*) dhcpv4-client - fixed DHCP client stuck in renewing state;
*) dhcpv6-relay - fixed missing configuration after reboot;
*) filesystem - fixed NAND memory going into read-only mode;
*) hotspot - fixed user authentication when queue from old session is not removed yet;
*) interface - fixed "built-in=no" parameter for manually created interface lists;
*) interface - fixed "dynamic" built-in interface list behaviour;
*) interface - fixed interface list which include disabled member;
*) interface - fixed interface list which include/exclude another list;
*) interface - fixed interface configuration responsiveness;
*) ipsec - fixed policies becoming invalid if added after a disabled policy;
*) ipsec - improved reliability on IPsec hardware encryption for ARM devices except RB1100Dx4;
*) led - added "dark-mode" functionality for hAP ac and hAP ac^2 devices;
*) lte - improved LTE communication process on MMIPS platform devices;
*) quickset - fixed dual radio mode detection process;
*) routerboard - properly represent board name for hAP ac^2;
*) tile - fixed Ethernet interfaces becoming unresponsive;
*) winbox - allow to specify "any" as wireless "access-list" interface;
*) winbox - fixed "/ip dhcp-server network set dns-none" parameter;
*) wireless - enable all chains by default on devices without external antennas after configuration reset;
*) wireless - fixed packet processing when "static-algo-0=40bit-wep" is being used (introduced in v6.42);
*) wireless - fixed usage of allowed signal strength values received from RADIUS;
*) wireless - improved wireless throughput on hAP ac^2 and cAP ac;
*) x86 - fixed reboot caused by MAC Winbox connection;

Download the new 'RouterOS 6.42.2' version here: https://www.mikrotik.com/download