If you’re on 6.31 — you are on a “latest” release line, and I don’t see something strange in that situation, that when you “swtich” the lines — you’re getting the last firmware of another line.
i try upgrade my RB493aH .. run 5 min and blocked, cant acess via mac or ip..
power off, power on.. again 3min, again 20 min.. WTF with 6.31.. with problems i return to 6.29.1, i have lucky that these mtik was on my house, so i can unplug power, but we have some network in the city, not good option.
We are talking about the upgrade menu. Not “Release Switch menu”.
If you are on 6.30, “Bugfix” should bring Updates to 6.30.1, 6.30.2, 6.30.3
If you are on 6.31, “Bugfix” should bring Updates to 6.31.1, 6.31.2, 6.31.3
Not downgrades. Even if you download the “downgrade” and reboot, it will not be installed as it is an older version than the installed one. You will have to run /system package downgrade additionally. So in my opinion this feature is not here to switch between releases, but for changing update channel.
Is this different from the existing x86 build for PC’s found on the download page?
*) chr - added x86_64 image for use in virtual environments
Is this the “synthetic” network interface in hyper-v?
*) chr - added support for HyperV Ethernet interfaces
The menu is called “/system package update” in terminal, and “System → Packages” in Winbox. The command is called “check-for-updates”. Do you feel the difference between “Update” and “Upgrade”?
Be very careful with this release now lost one wireless link with Groove52 not come back after update.
Also on 750UP try it to disable wireless package also lost device but they reboot after couple minutes by him self with log message kernel failure but wireless not disabled.
One 750GL every two minute in log say interface,warning ether5-slave-local excessive broadcasts/multicasts, probably a loop.
I update lot of device in last couple years this is maybe second time to lost device after update, that Groove is just simple wireless bridge but not have access in next 7 days 
.
Neither Upgrade nor Update is Downgrade.
I see something unusual with SSH after the upgrade to 6.31.
I connect to a remote router by SSH using Putty in Windows. A special user is configured for remote SSH access using no password but with a DSA key.
After the upgrade Putty prompted me with the standard warning I get (and expect) when I connect by SSH to a router for the first time. The warning is that because you have never connected before you may not trust the connection, and it shows the fingerprint. After connecting once I never get the warning again for that router.
But after the upgrade to 6.31 I received the warning again, as if I had never connected to that router. Of course I was just in there a minute earlier to trigger the router upgrade. I accepted the connection and it seems to be fine now, but something changed with SSH and 6.31. Not sure if this is a problem or not.
Just saw memory usage got bigger and bigger every minute - memory leak again? (had 87MB free RAM) (CCR1009-8G-1S-1S+). Anyone else?
firewall problem not block NAT connections IP time limit expired lifetime in src-address-list…IP removed list in time connections no block, RouterOS 6.31 (uptime 1 day)
v.6.31rc16 autoblock IP works OK function
ip firewall nat print
chain=dstnat action=dst-nat to-addresses=192.168.1.1 to-ports=2345 protocol=tcp src-address-list=WWW in-interface=ether3 dst-port=2345 log=yes log-prefix=""
address list name WWW time limit (D)
ether3 WAN
RB433UAH
Could not add VirtualAP via winbox on my RB751G-2HnD, “L2 MTU” field is empty and grey (read only) so i get error message: “Couldn’t add New Interface - l2mtu wrong (6)”. It is only possible to add interface via terminal. I tried with winbox 2.2.18 and 3.0rc12.
On my second router RB2011 I can normally add VirtualAP via winbox.
CA certificate import still doesn’t work (was ok in 6.29.1).
Got bootloop after update to 6.31 from 6.30.1 on rb532a. Will need to use a serial cable to check what to do…
working fine on several devices (CCR, CRS, Groove, 951G, 751G, hap-lite)
one common issue
/system shutdown via Winbox and/or console, ssh, telnet is not working anymore
The device does make a reboot instead.
This issue is found on the platforms mips-be and smips (tilera not tested but likely also affected).
Edit Issue is also present on ppc platform (RB1200 and RB1100AH tested).
The issue is gone after downgrading to 6.30.2. Edit end
I hope this is a bug. Or is shutdown not supported anymore?
No problem here on the same CCR model…
Got reboots every 5 minutes or so on my OmniTIK UPA-5HnD (no auto-spout.rif even if it is enabled in watchdog, free memory is ok, cpu at most at 3-4%).
6.30.2 seems stable.
I have issue with switch port flapping with 6.31 on “model: 750”, after downgrade to 6.30.2 all is ok
750UP upgraded yesterday, today reset by watchdog, never before have that much problem with new release with simple configuration in this case 750UP is just poe switch.
Never in last two years have that much problem with devices with simple configuration.
Yes I know is my mistake to upgrade without testing but not expected problem in devices with basic configuration.
For now not have problem with BaseBox, SXTLite, 411, one Groove52 is lost after upgrade others is working.
The same for me on an CRS 125 on the master-port ..every two minute ..excessive broadcasts/multicasts, probably a loop.
Back to 6.30.2 problem disappear
upgraded to 6.31 on CRS125. IP phones cannot connect to gateway after CRS125 reboot. Had to manually restart each phone. Not acceptable so reverted to 6.30.2. All fine again.