Click on 'Check for Updates' button (step 3 in the image) go to 'System/Packages' menu (Step 1 and 2 from image below).Simply click “Check for updates” in QuickSet, Webfig or Winbox packages menu. You can do this from Winbox, console, Webfig or QuickSet. Just one click, and RouterOS will find the latest version, show you the changelog, and offer to upgrade. The Force upgrade option in the context menu can be used to downgrade, or use a different version than latest.If you are already running RouterOS v6, upgrading to the latest version is simple. Then, you can upgrade many routers with one click: It is suggested to group routers that are in one network, because if you upgrade all your routers at one time, some of them might reboot while others are still downloading new files from Dude - this would interrupt the upgrade process for some devices because they could loose connectivity. You can define Groups of routers in the RouterOS -> Group. You can also go to the Devices panel and see all available RouterOS devices, their status, and upgrade them all from this location:

The Dude will automatically offer you the correct new version from the context menu of the device: To check what version and packages are installed currently, double click the device, and check the package menu: You should enter the access name and password in the settings too. You need to make sure that your RouterOS devices have been marked as 'MikroTik device' and as 'RouterOS' in their device settings. Note: Starting with v6.37 version find manual in following link (Manual:The Dude v6/Files).

Mikrotik routeros upgrade