MikroTik RouterOS ARM Firmware 6.42.9

Important note:

- Backup before upgrade!
- RouterOS v6.41 and above contains new bridge implementation that supports hardware offloading (hw-offload).
- This update will convert all interface "master-port" configuration into new bridge configuration, and eliminate "master-port" option as such.
- Bridge will handle all Layer2 forwarding and the use of switch-chip (hw-offload) will be automatically turned on based on appropriate conditions.
- The rest of RouterOS Switch specific configuration remains untouched in usual menus.
- Please, note that downgrading below RouterOS v6.41 will not restore "master-port" configuration, so use backups to restore configuration on downgrade.

What's new in 6.42.9:

- bridge - ignore tagged BPDUs when bridge VLAN filtering is used;
- bridge - improved packet handling when hardware offloading is being disabled;
- crs317 - fixed packet forwarding on bonded interfaces without hardware offloading;
- crs326/crs328 - fixed packet forwarding when port changes states with IGMP Snooping enabled;
- defconf - properly clear global variables when generating default configuration after RouterOS upgrade;
- dns - fixed DNS cache service becoming unresponsive when active Hotspot server is present on the router (introduced in 6.42);
- filesystem - fixed NAND memory going into read-only mode (requires "factory-firmware" >= 3.41.1 and "current-firmware" >= 6.43);
- health - added missing parameters from export;
- health - fixed voltage measurements for RB493G devices;
- hotspot - properly update dynamic "walled-garden" entries when changing "dst-host";
- ike2 - fixed rare authentication and encryption key mismatches after rekey with PFS enabled;
- ike2 - improved subsequent phase 2 initialization when no child exist;
- ipsec - improved invalid policy handling when a valid policy is uninstalled;
- ipsec - improved stability when using IPsec with disabled route cache;
- led - added "dark-mode" functionality for wsAP ac lite, RB951Ui-2nD, hAP, hAP ac lite and LtAP mini devices;
- lte - fixed LTE interface not working properly after reboot on RBSXTLTE3-7;
- lte - fixed LTE registration in 2G/3G mode;
- ospf - improved link-local LSA flooding;
- ospf - improved stability when originating LSAs with OSPFv3;
- routerboard - fixed memory tester reporting false errors on IPQ4018 devices ("/system routerboard upgrade" required);
- routerboard - show "boot-os" option only on devices that have such feature;
- routerboot - fixed RouterOS booting on devices with particular NAND memory;
- sniffer - made "connection", "host", "packet" and "protocol" sections read-only;
- supout - added "files" section to supout file;
- upgrade - fixed RouterOS upgrade process from RouterOS v5 on PowerPC;
- upnp - improved UPnP service stability when handling HTTP requests;
- userman - fixed "shared-secret" parameter requiring "sensitive" policy;
- w60g - added "frequency-list" setting;
- w60g - fixed interface LED status update on connection;
- w60g - fixed random disconnects;
- w60g - general stability and performance improvements;
- webfig - fixed time interval settings not applied properly under "IP/Kid Control/Kids" menu;
- webfig - fixed www service becoming unresponsive;
- winbox - show "System/RouterBOARD/Mode Button" on devices that has such feature;
- wireless - accept only valid path for sniffer output file parameter;
- wireless - fixed "/interface wireless sniffer packet print follow" output;

About Router Firmware:

Before you consider downloading this firmware, go to the system information page of the router and make sure that the currently installed version isn't either newer or matching this release.

Due to the large variety of router models and different methods for upgrading the device, it is highly recommended that you read and, above all, understand the installation steps before you apply the new firmware, even if you are a power user.

In theory, these steps shouldn't be much of a hassle for anyone, because manufacturers try to make them as easy as possible, even if they don't always succeed. Basically, you must upload the new firmware to the router through its administration page and allow it to upgrade.

If you install a new version, you can expect increased security levels, different vulnerability issues to be resolved, improved overall performance and transfer speeds, enhanced compatibility with other devices, added support for newly developed technologies, as well as several other changes.

If you're looking for certain safety measures, remember that it would be best if you perform the upload using an Ethernet cable rather than a wireless connection, which can be interrupted easily. Also, make sure you don't power off the router or use its buttons during the installation, if you wish avoid any malfunctions.

If this firmware meets your current needs, get the desired version and apply it to your router unit; if not, check with our website as often as possible so that you don't miss the update that will improve your device.