7.23.5 [long-term] is released!

Announcements
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7.23.4 contains an important security fix, and the security of our users comes first. We apologize for the inconvenience, an IPv6 regression slipped through our testing, which is why 7.23.5 followed shortly after.

What's new in 7.23.5 (2026-09-04):

The 7.23.4 release was an important security update. Most configurations are not at risk, but upgrading is highly recommended. To give you time to update your systems, we are not publishing detailed information yet. This release, 7.23.5, additionally addresses an urgent issue introduced in 7.23.4.

*) dhcp - fixed IPv6 DHCP functionality (introduced in v7.23.4);

To upgrade, click Check For Updates under System/Packages menu and select the Stable Channel in RouterOS configuration interface, or head to our download page:
http://www.mikrotik.com/download

7.23.4 topic,

Important security announcement,

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THANKS!

NOW IS 7.23.5 TIME...

:heart_eyes:

4

select "long-term" channel. :wink:

5

Hello! Yes, here is working now. Thanks!

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6

Fixed for me too, thank you for the quick turnaround!

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There is some issue with dhcp-server on powerpc (850) platform on 7.23.4, 7.23.5, also 7.24.2. After upgrade dhcp server doesn't give out lease to computers (win, linux) stating:

dhcp1 offering lease x.x.x.x for 00:11:22:33:44:55 without success.
Downgrade to 7.21.5 solves the problem

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Please put again 7.23.5 and create supout.rif and send it to support@mikrotik.com with problem description.

Only writing here, do not really help...

9

Hap ac2 nothing changed, doesnt work v6

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Might it involve powerpc 1100AHx2 devices as well? Will probably see later tonight by testing...

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Can you send feedback how it went on ur gear?

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NOT... BETTER:

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This weekend, we're left with 6.49.21,
but next week I'll do some local testing first (obviously), then launch production.
Only then will I provide updates (or sooner if I find any issues in pre-production testing).

EDIT:
I do updates at 4 a.m., (04:00 at night, to write it clearly).
In those two minutes, you have no idea how many customers complain the next day...
Then you tell them, "I put the warning on the website, I sent you the email and the SMS",
and they say, "Oh, I hadn't read that."...
:face_with_symbols_on_mouth:

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Whew, dhcpv6 back to normal on my rb5009 with this update

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as my ax^3 upgraded to 7.23.5, I don't know how to turn off the red "notice" about the new release on iOS app.

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Hi,

a CRS305-1G-4S+, a RB4011iGS+ and a cAP ax upgraded from 7.23.4 to 7.23.5 with success.

But a CRS310-8G+2S+ stay in 7.23.4 trying to upgrade to 7.23.5 :thinking:

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Read logs.

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I had an issue. Upgraded RB5009, CRS112 and 3 WAP ax from 7.21.5 LT, downgraded 1 L009 UiGs from 7.24.1 in order to go to LTS with ARM64. Guest wifi network not working, but no configs changed.

It was late, so I didn't investigate, but applying 7.23.5 to the WAP ax's fixed it.

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fyi
after the update a new "Check for Updates" gui appears, and without select the option "check-certificate"-> "Yes Without CRL" i cannot check for new updates. maybe the crl is needed or another option (like http) or (Yes without crl) should be the new "default"..

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This was mentioned elsewhere, but if you go to System -> Certificates -> Settings, uncheck Use CRL it should work.