6.40rc15 changelog:

*) defconf - added accept ICMPv6 in forward and DHCP discover in RAW prerouting;
*) ike2 - added pfkey kernel return checks;
*) ipsec - added information in console XML for "mode-config" menu;
*) ipsec - fixed connections cleanup on policy or proposal modification;
*) ipsec - removed policy priority;
*) ppp - fixed MLPPP over multiple channels/interfaces (introduced in v6.39);

Other changes since 6.39.1:

*) 6to4 - fixed wrong IPv6 "link-local" address generation;
*) arp - fixed "make-static";
*) bonding - do not add bonding interface if "could not set MTU" error is received;
*) btest - fixed crash when packet size has been changed during test;
*) capsman - fixed EAP identity reporting in "registration-table";
*) capsman - set minimal "caps-man-names" and "caps-man-certificate-common-names" length to 1 char;
*) chr - maximal system disk size now limited to 16GB;
*) conntrack - load IPv6 connection tracking independently of IPv4;
*) console - fixed "No such file or directory" warnings on upgrade reboots;
*) defconf - added IPv6 firewall configuration (IPv6 package must be enabled on reset);
*) defconf - renamed 192.168.88.1 address static DNS entry from "router" to "router.lan";
*) defconf - replaced IPv4 firewall configuration with improved one;
*) dns - remove all dynamic cache RRs of same type when adding static entry;
*) ethernet - fixed forced 10Mbps full-duplex linking on 100Mbps Ethernet ports;
*) export - added "terse" option;
*) export - removed spare "caller-id-type" value from compact export;
*) fetch - added "src-address" parameter for HTTP and HTTPS;
*) fetch - fixed user and password argument parsing from URL for FTP;
*) firewall - "address-list" entry “creation-time” adjusted to timezone;
*) firewall - do not allow to set "rate" value to 0 for "limit" parameter;
*) firewall - fixed "address-list" entry changing from IP to DNS and vice versa;
*) firewall - fixed IPv6 all address list entries becoming "::/0" (introduced in 6.40rc1);
*) firewall - fixed cosmetic "inactive" flag when item was disabled;
*) gps - removed duplicate logs;
*) hotspot - require "dns-name" to contain "." symbol under Hotspot Server Profile configuration;
*) ike1 - fixed crash on xauth message;
*) ike1 - fixed minor memory leak on peer configuration change;
*) ike1 - removed xauth login length limitation;
*) ike2 - by default use "/24" netmask for peer IP address in split net;
*) ike2 - fixed rare kernel failure on address acquire;
*) ike2 - fixed situation when traffic selector prefix was parsed incorrectly;
*) ipsec - enabled modp2048 DH group by default;
*) ipsec - fixed generated policy priority;
*) ipsec - fixed peer "my-id" address reset;
*) ipsec - optimized logging under IPSec topic;
*) ipsec - renamed "remote-dynamic-address" to "dynamic-address";
*) ipv6 - fixed address becoming invalid when interface was removed from bridge/mesh;
*) led - fixed ethernet LEDs on CCR1009 and RB1100AHx2 (introduced in v6.40rc1);
*) led - fixed turning off LED when interface is lost;
*) log - added "poe-out" topic;
*) log - work on false CPU/RAM overclocked alarms;
*) lte - added additional driver support for DWR-910;
*) lte - added initial support for "NTT DoCoMo" modem;
*) lte - fixed configless modem running state (introduced in 6.40rc);
*) lte - improved info channel background polling;
*) lte - replaced "user-command" with "at-chat" command;
*) ppp - fixed "change-mss" functionality (introduced in 6.39);
*) ppp - send correct IP address in RADIUS "accounting-stop" messages (introduced in 6.39);
*) pppoe - fixed warning on PPPoE server, when changing interface to non-slave interface;
*) pppoe-client - removed false warning from client interface if it starts running on non-slave interface;
*) pppoe-server - fixed "one-session-per-host" issue where 2 simultaneous sessions were possible from the same host;
*) proxy - fixed potential crash;
*) queue - fixed queuing when at least one child queue has "default-small" and other/s is/are different (introduced in 6.35);
*) quickset - added "Band" setting to "CPE" and "PTP CPE" modes;
*) quickset - fixed LTE "signal-strength" graphs;
*) quickset - use active user name and permissions when applying changes;
*) routing - allow to disable "all" interface entry in BFD;
*) sniffer - fixed VLAN tags when sniffing all interfaces;
*) snmp - fixed crash on interface table get;
*) snmp - added "ifindex" on interface traps;
*) snmp - added ability to set "src-address";
*) snmp - fixed limited walk;
*) switch - fixed disabling of MAC learning on CRS1xx/CRS2xx;
*) tile - fixed EoIP keepalive when tunnel is made over VLAN interface;
*) tile - fixed rare encryption kernel failure when small packets are processed;
*) ups - show correct "line-voltage" value for usbhid UPS devices;
*) winbox - added "eap-identity" to CAPsMAN registration table;
*) winbox - added "no-dad" setting to IPv6 addresses;
*) winbox - added "reselect-channel" to CAPsMAN interfaces;
*) winbox - added TR069 support;
*) winbox - do not allow to open multiple same sub-menus at the same time;
*) winbox - fixed LTE info button;
*) winbox - fixed firewall port selection with Winbox v2;
*) winbox - removed spare values from "loop-protect" setting for EoIPv6 tunnels;
*) wireless - NAK any methods except MS-CHAPv2 as inner method in PEAP;
*) wireless - added option to change "nv2-downlink-ratio" for nv2 protocol;
*) wireless - added option to set "fixed-downlink" mode for nv2 protocol;
*) wireless - always use "multicast-helper" when DHCP is being used;
*) wireless - do not skip >2462 channels if interface is WDS slave;
*) wireless - fixed 802.11u wireless request processing;
*) wireless - fixed EAP PEAP success processing;
*) wireless - fixed compatibility with "AR5212" wireless chips;
*) wireless - reduced load on CPU for high speed wireless links;

Download the new 'RouterOS 6.40rc15' version here: https://www.mikrotik.com/download