What’s new in v3.39:
Important note!!!
Upgrade from older WinBox versions might not work due to the new digital signature. Manual WinBox upgrade is required.
*) added support for QR code field;
If you experience version related issues, then please report them to support@mikrotik.com.
Both Winbox 32-bit and 64-bit versions are available here:
https://www.mikrotik.com/download
Quick Tip: Now you can use Back To Home feature with regular Wireguard app in your phone or other device. Once BTH has been set up, in your “IP → Cloud” menu you will be able to scan a QR code from any device with a stock Wireguard app, to quickly configure the tunnel there.
Apart from this:
If one doesn’t use that feature at all, do you still recommend upgrading because something else, not reported, has also been fixed?
Thank you.
The only changes:
The dark theme is an important feature that you do not add!
Why is it important?
would it be possible to add an option to auto enable safe mode on connection?
I tried to upgrade… upgrade file is corrupt, on three different pc
EDIT: I tried the auto-upgrade mode and if failed with 3 different PCs.
I didnt replace the exe though.
Did you bother to read opening post in this thread. It says:
Important note!!!
Upgrade from older WinBox versions might not work due to the new digital signature. Manual WinBox upgrade is required.
Yes, I read. It says “might not work”. I just reported my experience.
The problem is that you wrote “upgrade file is corrupt” which is something very different from what was mentioned in announcement (and is probably the reason for upgrade to fail). If you phrased your post like “upgrade fails indeed, I tried on 3 different pcs”, the meaning would be whole lot different (for starters, it would show that you did read the announcement and that you encountered the predicted problem).
You are right! I just wrote quickly
New phrasing, in case this will be more clear:
Built in upgrade will not work! This is because new Winbox has new exe signature. It will say “upgrade file corrupt”. So download new winbox manually here: https://mt.lv/winbox64.
I kind of agree there. That line should be changed to “it will probably not work so upgrade manually”.
EDIT: and it’s done 
I’ve seen it happen too (hey, maybe I was lucky… ) but after the first occurrence I already made my conclusion how to proceed for the second one.
And the message effectively said “file is corrupt”. Quite confusing …
Windows find some virus on 64 version
Try other antivirus software
when running on windows 10 enterprise, up to date as of yesterday
Something’s wrong with this signature:
RE-DOWNLOAD PLEASE.
FIXED 
Why hasn’t it been added to the window header next to the name “WinBox” to display its version when it is connected?
The dark theme is very interesting and useful for tired eyes.