OpenWrt 18.06.4 Service Release

The OpenWrt Community is proud to announce the fourth service release of the stable OpenWrt 18.06 series.

OpenWrt 18.06.4 incorporates a number of bug fixes in the network and system userland, as well as updates to the kernel and base packages.

Note that the OpenWrt 18.06.3 release was skipped in favor to 18.06.4 due to a last minute 4.14 kernel update fixing TCP connectivity problems which were introduced with the first iteration of the Linux SACK vulnerability patches.

Important: If you upgraded any LuCI packages using opkg, ensure that the latest version of liblucihttp (dated 2019-07-05 or later) is installed prior to applying the upgrade image via the gui in order to prevent possible flash data corruption. Alternatively, flash the upgrade images using the sysupgrade command on the command line.

Some selected highlights of the service release are:

  • Linux kernel updated to versions 4.9.184/4.14.131 (from 4.9.152/4.14.95 in v18.06.2)
  • SACK security fixes for the Linux kernel
  • WPA3 security fixes in hostapd
  • Further security fixes for Curl and the kernel
  • MT76 wireless driver updates
  • Various network and system service fixes

For a detailed list of changes since 18.06.2 refer to

For latest information about the 18.06 series, refer to
the wiki at:

To download the v18.06.4 images, navigate to:

Have fun!

The OpenWrt Community


Thanks ,will this one work for Raspberry pi B+ BCM 2837B0 ?

Your question is slightly ambiguous, as there is no "Raspberry pi B+ BCM 2837B0", there is either a "Raspberry Pi 1 Model B+", based on the ARMv6 BCM2835 SOC, or a "Raspberry Pi 3 Model B+", based on -indeed- the ARMv8 BCM2837B0 SOC. In case of the later, the answer is no - the openwrt-18.06 branch isn't supposed to get new features, that includes no support for new devices (just bug fixes), master or the openwrt-19.07 branch (with 19.07.0 still pending) are for that.


Thanks a lot for your very good work

work well on wrt32x and wrt3200


Upgraded via GUI to latest snapshot "openwrt-18.06.4-ramips-mt7621-mir3g-squashfs-sysupgrade.tar"
but there is no wireless interface available under LuCI. Is this a bug or I doing something wrong?

Shout out to all involved :grinning:

Just sysupgraded to 18.06.4 from 18.06.2 factory!

TP-Link Archer C2600
ARMv7 Processor rev 0 (v7l)
Firmware Version
OpenWrt 18.06.4 r7808-ef686b7292 / LuCI openwrt-18.06 branch (git-19.170.32094-4d6d8bc)
Kernel Version

Why this release doesnt update version some packages (ex: adblock, mwan3...) ?

Likely because their respective authors didn't backport their changes to the OpenWrt 18.06 branch.


I'm manual upgraded that packages without issue. Anyway tks @jow

Thanks all devs for your hard work! :slight_smile: I am glad we got there in the end.

1 Like


Dataentries have been updated from 18.06.2 to 18.06.4 now.
OpenWrt downloads for 850 devices supported by 18.06.4

The following dataentries have not been updated from 18.06.2 to 18.06.4


Really great release as always guys. Working like a charm on my mir3g. Compiled the package myself with -O2 optimizations in gcc.

I have installed 18.06.4 on a TP Link WDR3600 and it does not show WPA3 as an option.

Am I right to assume that this version of hostapd does not generally enable WPA3?

You need master snapshots (or the upcoming 19.07.x) for full WPA3 support, while there are ways to enable it in 18.06.x, that's not really a supported option (no integration into netifd, hostapd, luci, very broken implementation prior to the hostapd version in master/ openwrt-19-07).


Is it intentional that still lists .2 as stable?
Yes, I can see the .4 tree, just curious.
Edit: page already fixed while I upgraded my Fritzbox 4040, all is well.

I was able to upgrade my Linksys wrt1200ac and Mikrotik RB493G with no problems. Thank you to everyone for their work.

Thank you very much to all the devs for their continued support in making OpenWRT better and better. Cheers!

1 Like

Did 18.06.2 -> 18.06.4 on three Meraki MR24 AP's, saving settings. All good, many thanks to devs!

Updating my whr-1166d from 18.06.1 to 18.06.4 did not work with keeping the settings. Maybe because I had done some changes to to the bridging interfaces - nothing special, just added the 1GbE WAN Port to the Switch (with the four 100Mb Ports) since I am using it as an AP and not as a Router...

Had to reconfigure everything from scratch, even loading the backup config had some problems (was unable to delete the WAN devices). Not horrible, but unexpected for such a "small" incremental update.

1 Like