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Before an upgrade:

1. Remember to make backup/export files before an upgrade and save them on another storage device;
2. Make sure the device will not lose power during upgrade process;
3. Device has enough free storage space for all RouterOS packages to be downloaded.

What's new in 7.15 (2024-May-29 15:44):

!) system - added support for AMPERE (R) and ARM64 CHR installations (new ARM64 CHR image available); !) system - added support for AMPERE (R) hardware (new ARM64 ISO file, new ARM64 extra-nics.npk package); *) bgp - added initial vpnv6 support; *) bgp - correctly synchronize input.accept-nlri address list; *) bgp - fixed prefix count when BGP sessions run with multiple AFIs; *) bgp - fixed selecting local.default-address from wrong VRF; *) bgp - use IPv6 as default address-family for IPv6 sessions; *) bgp-vpn - use VRF interface as gateway for leaked connected routes; *) branding - added option to hide default configuration prompt; *) branding - added option to hide or replace default caps-mode-script; *) bridge - added error message if MLAG peer-port is configured with "mlag-id"; *) bridge - added MLAG peer-port events to logs; *) bridge - added MVRP support; *) bridge - do not allow multiple bonds with same "mlag-id"; *) bridge - improved protocol-mode STP, RSTP and MSTP stability; *) bridge - rename monitor property "path-cost" to "actual-path-cost"; *) bridge - reworked dynamic VLAN creation; *) bridge - use default "edge=auto" for dynamically bridged interfaces (PPP, VPLS, WDS); *) certificate - added support for different ACME servers for ssl-certificate (CLI only); *) certificate - added support for importing pbes2 encrypted private keys with aes128; *) certificate - added trusted parameter for certificate import; *) certificate - allow replacing certificate with internal import; *) certificate - delete certificate related files automatically from storage after import; *) certificate - improved RSA key signature processing speed; *) chr - allow to "generate-new-id" only while CHR is running on level "free" license; *) chr - fixed bogus messages printed out while booting up the system (introduced in v7.14); *) chr - fixed Xen and Vultr missing ethernet (introduced in v7.14); *) console - added "byte-array" option to ":convert" command; *) console - added "proplist" parameter to interactive commands; *) console - added "rows" property for sniffer quick mode; *) console - added "sanitize-names" property under "/console/settings" menu (option for replacing reserved characters with underscores for files, disabled by default); *) console - added "type" parameter to ":resolve" command; *) console - added "use-script-permissions" option when running scripts from CLI; *) console - added hotkey "F8" to print entire multiline input; *) console - added link from "/iot/lora" to "/lora"; *) console - added log for script execution failures; *) console - added multi-line print in "/file" menu; *) console - added option to get "about" value (dynamically created text field by RouterOS services like CAPsMAN); *) console - added option to read and change file line endings in full-screen editor; *) console - added warning log for modified filenames due to reserved characters; *) console - covert spaces, CR, LF in ":convert to=url" command; *) console - do not convert string to array in ":deserialize" command; *) console - fixed ":onerror" behavior when "do" block is missing; *) console - fixed "export where" functionality in certain menus; *) console - fixed console prompt when entering hot lock mode with "F7"; *) console - fixed DHCP server "authoritative=no" configuration export; *) console - fixed do/while implementation not working with variables (introduced in v7.14); *) console - fixed filtering by "dhcp" flag in "/ip/arp" menu; *) console - fixed multiple typos in help; *) console - improved stability; *) console - optimized configuration export to prevent startup of processes without any configuration; *) console - remove unnecessary serial ports for Alpine CPUs; *) console - show system note before serial login if enabled; *) console - use user permissions when running scripts from WinBox and WebFig; *) container - do not allow negative number for "ram-high" setting; *) defconf - do not override default DHCP server lease time; *) defconf - fixed 5ghz-ax channel width for L11, L22 devices; *) defconf - fixed unknown topics in log messages; *) defconf - minor configuration script updates; *) dhcpv4-relay - added VRF support; *) discovery - added LLDP MAC/PHY Configuration/Status TLV support; *) discovery - added LLDP Maximum Frame Size TLV support; *) discovery - added LLDP Port Description TLV support; *) discovery - advertise only physical interface name for LLDP PortID TLV; *) discovery - always send LLDP MED Power TLV if MED was received; *) discovery - fixed high CPU utilization when "tx-only" mode is set; *) discovery - optimized LLDP information update; *) disk - added option to auto configure media sharing; *) disk - added support for formatting exfat file-system; *) disk - improved support for file systems with non-ascii characters in file names; *) disk - improved support for formatting ext4 file-system; *) disk - improved system stability when adding partition with no parent; *) disk - improved system stability; *) disk - the "scan" command will now detect and include USB drives that were previously ejected; *) dns - added support for "adlist"; *) dns - added VRF support; *) dns - improved system stability when caching entries; *) eap - improved eap-peap, eap-mschap2 client authentication (dot1x/wireless/ipsec); *) ethernet - fixed default names for CRS310-8G+2S+ device (introduced in v7.14); *) ethernet - fixed interface disable for CRS326-4C+20G+2Q; *) ethernet - fixed management port disable/enable on CCR2004-1G-12S+2XS, CCR2004-1G-2XS-PCIe, CCR2216, CCR2116 devices; *) ethernet - improved port speed downshift functionality for CRS326-4C+20G+2Q; *) fetch - added "idle-timeout" parameter; *) fetch - changed topic "info" to "error" for permission denied logs; *) fetch - fixed slow throughput due to "raw" logging which occurred even when not listening to the topic (introduced in v7.13); *) file - allow adding and renaming files and directories; *) file - avoid refreshing whole file system during file modification; *) file - improved external storage detection; *) health - added "cpu-temperature" for IPQ50xx devices; *) health - added log for fan state changes on CRS3xx, CRS5xx, CCR2xxx, CCR1016r2, CCR1036r2 devices; *) health - fixed fan behavior for CRS310-1G-5S-4S+ (introduced in v7.14); *) health - fixed rogue voltage on CRS510-8XS-2XQ-IN; *) install - cdrom and hdd install images contain additional packages that can be interactively selected; *) ipv6 - properly initialize default ND "interface=all" entry; *) leds - fixed LEDs for L22 device; *) lora - removed LoRa WinBox and console functionality duplication (moved to IoT package since v7.11); *) lte - added "at-chat" support for DELL T99W175 (PID: 0x05c6 VID: 0x90d5); *) lte - added support for concatenated AT commands in "modem-init" string; *) lte - added support to set "modem-init" string for "dialer-less" modems; *) lte - apply the same configuration for Microsoft branded EM12-G modem (Surface Mobile Broadband) as for Quectel EM12-G; *) lte - do not show persistent interfaces for multi-apn slave interfaces; *) lte - dropped support for R11e-LTE-US FOTA firmware update; *) lte - fixed R11e-LTE-US modem dial-up; *) lte - fixed situation where link is not restored after Quectel MBIM modem firmware update; *) lte - improved FG621-EA modem APN authentication; *) lte - make interface persistent (unused interface configs can be removed, allow to export and examine current configuration without the device present); *) lte - removed 2 APN restriction for RG520F-EU modem; *) lte - use the correct network interface for multi-interface LTE modems; *) media - added support for DLNA; *) metarouter - removed support; *) modem - send APN authentication for BG77 modem also if ppp-client interface created manually; *) netinstall - improved stability; *) netinstall-cli - fixed incorrect server address assignment (introduced in v7.14); *) ovpn - fixed import ovpn config when remote port is missing; *) ovpn - fixed minor typo in error message; *) poe-out - added LLDP power management support for devices with single PoE-out port; *) poe-out - fixed powering devices if input voltage is lower than 12V for hEX PoE (introduced in v7.9); *) poe-out - improved firmware upgrade stability for AF/AT controlled boards; *) poe-out - moved "PoE LLDP" property from "/interface/ethernet/poe" to "/ip/neighbor/discovery-settings" and enable it by default; *) ppp - added "enable-ipv6-accounting" option under PPP AAA menu (CLI only); *) ppp - added log when disconnecting a client due to "WISPr-Session-Terminate-Time" RADIUS attribute; *) ppp - allow underscores in domain names; *) ppp - enabled monitoring of registration state, RSRP, RSRQ, SINR, PCI, CellID for BG77 modem; *) ppp - fixed "Framed-IPv6-Pool" usage when received from RADIUS; *) ppp - fixed "on-down" script running even when tunnel was not up; *) profiler - added "neighbor-discovery" task; *) ptp - added PTP support for CCR2116 device; *) qos-hw - added "offline" tx-manager (CLI only); *) qos-hw - added "profile" and "map" support for CPU port; *) qos-hw - added congestion avoidance support for 98DX8xxx, 98DX4xxx, 98DX325x switch chips (CLI only); *) qos-hw - added ECN marking support for compatible switches; *) qos-hw - added per-queue traffic shapers (CLI only); *) qos-hw - added Priority Flow Control for compatible switches (CLI only); *) qos-hw - added support for QoS profile assignment via ACL rules; *) qos-hw - added WRED support for compatible switches; *) qos-hw - fixed port "print stats/usage" when using "from" property; *) qos-hw - replaced buffer with bytes in QoS monitor; *) queue - improved system stability (introduced in v7.6); *) quickset - only show LTE mode for devices without other wireless interfaces; *) radius - added "require-message-auth" option that requires "Message-Authenticator" in received Access-Accept/Challenge/Reject messages; *) radius - include "Message-Authenticator" in any RADIUS communication messages besides accounting for all services; *) route - do not allow routes with empty "dst-address"; *) route - do not redistribute loopback address as connected route; *) route - fixed bgp-vpn prefix import with the same route distinguisher (RD); *) route - improved system stability; *) route - rework of route attributes; *) route - show route-distinguisher (RD) in route print; *) route-filter - allow setting different AFI gateways; *) route-filter - fixed ext community list matcher; *) sfp - added "100M-baseFX" link mode support for compatible devices; *) sfp - added "sfp-ignore-rx-los" setting; *) sfp - fixed "sfp-tx-fault" state indication for CRS510; *) sfp - fixed link establishment with 100Mbps optical modules (requires "/interface ethernet reset" or adding "100M-baseFX" modes for advertise or speed properties); *) sfp - fixed missing Tx traffic at 10Gbps rate on CCR2004-16G-2S+ in rare cases; *) sfp - ignore SFP RX LOS signal for modules with bad EEPROM; *) sfp - improved "sfp-tx-power" value monitoring in certain cases; *) sfp - improved auto-negotiation linking for some MikroTik cables and modules; *) sfp - improved system stability for CR2004-1G-2XS-PCIe (introduced in v7.14); *) sfp - improved system stability with some GPON modules for CCR2004 and CCR2116 devices; *) smb - added logs for share connection requests; *) smb - do not allow setting empty "comment" or "domain" properties; *) sms - added option to select SMS storage; *) sms - added SMS PDU to SMS inbox "print detail"; *) sms - added workaround for modems which do not notify regarding new SMS arrival (missing URC); *) sms - improved SMS handling; *) sms - removed SMS for SMIPS; *) sms - use "gsm" logging topic for serial modem SMS logs; *) snmp - added missing PoE-out status codes to MIKROTIK-MIB; *) snmp - added new "mtxrOpticalVendorSerial" OID to MIKROTIK-MIB; *) socks - attempt to parse domain name as IP before resolving; *) ssh - added support for user Ed25519 private keys; *) ssh - export host Ed25519 public key; *) ssh - fixed bogus output; *) ssh - fixed permissions to run ".auto.rsc" scripts; *) ssh - require "policy" user policy when adding public key; *) sstp - added SNI support; *) sstp - disconnect clients when server is disabled; *) storage - improved configuration storing process on first system boot after configuration reset; *) switch - added support for multiple ingress and egress port mirroring on 98DXxxxx switches; *) switch - added support for RSPAN mirroring on 98DXxxxx switches; *) switch - fixed L3HW and QoS monitor during switch reset; *) system - added resource values (Product name, File name and File version) for Windows executable files; *) system - general work on optimizing the size of RouterOS packages; *) system - show "cpu-frequency" for Alpine CPUs; *) system - skip configuration upgrade from RouterOS v6 on configuration reset; *) system - updated office address in RouterOS license; *) system - updated online manual links from "wiki" to the help documentation; *) timezone - updated timezone information from "tzdata2024a" release; *) traffic-flow - detect IPv4 source address if not set; *) traffic-flow - improved system stability; *) userman - added "require-message-auth" option that requires "Message-Authenticator" in received Access-Request messages; *) userman - include "Message-Authenticator" in any RADIUS communication messages besides accounting for all services; *) vlan - added MVRP (applicant) configuration option; *) vlan - ensure that VLAN MTU remains unchanged when adjustments are made to the parent interface MTU, only modifications to the L2MTU might impact VLAN MTU; *) vlan - fixed MTU reset on bridge after reboot; *) vlan - limit "vlan-id" range from 1-4095 to 1-4094; *) vrf - fixed VRF interfaces being moved to main table after reboot (introduced in v7.14); *) webfig - allow pasting with ctrl+v into terminal; *) webfig - fixed column preferences for ordered tables; *) webfig - show inherited properties for wifi interfaces; *) wifi - added "reselect-interval" support; *) wifi - changed interface default to "disabled=yes"; *) wifi - do not report disabled state for CAPsMAN managed interface; *) wifi - fixed configuration export for "disabled" property; *) wifi - improve channel selection after radar detection events; *) wifi - improve regulatory compliance for L11, L22 devices; *) wifi - improved interface initialization reliability on DFS channels; *) wifi - improved stability of DFS check in the 5GHz-A band; *) wifi - improved system stability when provisioning CAPs in certain cases; *) wifi - rename "available-channels" parameter to "channel-priorities" and include desirability rating for each channel; *) wifi - report current CAPsMAN address and identity on CAP; *) wifi - show inherited properties with "print" command (replaces "actual-configuration") and added "print config" for showing only configured values; *) wifi-qcom - added configuration.distance setting to enable operation over multi-kilometer distances; *) wifi-qcom - updated driver; *) winbox - added "Download" and "Flush" buttons under "System/Certificates/CRL" menu; *) winbox - added "Flat Snoop" button under "WiFi" menu; *) winbox - added "FT Preserve VLAN ID" setting under "WiFi/Configuration/FT" menu; *) winbox - added "Request logout" button under "System/Users/Active Users" menu; *) winbox - added "Trusted" checkbox under "System/Certificates/Import" menu; *) winbox - added drop down menu for "User" property when importing SSH key under "System/User/SSH Keys" and "System/User/SSH Private Keys" menus; *) winbox - added invalid flag under "IP/DHCP Relay" menu; *) winbox - added key type and key length column for user SSH keys; *) winbox - added missing SFP monitoring properties under "Interface/SFP" menu; *) winbox - added passphrase option for SSH host key export; *) winbox - added passphrase option for SSH host key import; *) winbox - allow specifying size and rtmpfs size with M, G units under "System/Disks" menu; *) winbox - allow to specify "M" or "G" postfix for download, upload or total limits under "User Manager/Limitations" menu; *) winbox - do not show "Host Key Size" when using ed25519 key under "IP/SSH" menu; *) winbox - fixed the issue where the skin file fails to appear in the user group menu after creation; *) winbox - renamed "Channel" column to "Current Channel" under "Wifi" menu; *) winbox - show "Valid Servers" and "Unknown Servers" column by default under "IP/DHCP Server/Alerts" menu; *) winbox - show inherited properties for wifi interfaces; *) winbox - show SIM settings for SXTR device under "Interfaces/LTE/Modem" menu; *) winbox - updated icons for certain menus; *) winbox - use correct values for "Jump Target" property under "IPv6/Firewall/Filter Rules" menu; *) wireguard - added option to mark peer as responder only; *) wireguard - added peer "name" field and display it in logs; *) wireguard - do not attempt to connect to peer without specified endpoint-address; *) wireguard - fixed "auto" argument usage for "private-key" and "preshared-key" settings; *) wireguard - fixed performance issues showing QR code; *) wireless - perform shorter channel availability check for 5600-5650MHz if regulatory domain permits it; *) x86 - fixed ixgbe Tx hang by disabling TSO; *) x86 - fixed VLAN tagged packet transmit for ice driver; *) x86 - ice driver update to v1.13.7; *) x86 - improved stability for RTL8125 driver; *) x86 - ixgbe driver update to 5.19.9; *) x86/chr - improved panic saving (increased minimal RAM requirements to 256MB);