I am creating a new build because NodeJs changed and I built now 3 routers.
But if it really not changing after the upgrade I will add in this scripts:
pushd /lib/firmware/mwlwifi/
rm 88W8864.bin
rm 88W8897.bin
rm 88W8964.bin
wget https://github.com/eduperez/mwlwifi_LEDE/raw/master/bin/firmware/88W8864.bin
wget https://github.com/eduperez/mwlwifi_LEDE/raw/master/bin/firmware/88W8897.bin
wget https://github.com/eduperez/mwlwifi_LEDE/raw/master/bin/firmware/88W8964.bin
popd
By the way I check the files and their size is exactly bytes, so I think they are the same. Just do date is different, but I checked.
Yes I double tested and what you got is the latest (Dec . Since the older versions have different size by the bytes.
I guess the date is wrong, but the firmware is what you did was not updated, since they are the same.
But 2 days ago there is a new wifi so I am building that is different size.
So the kmod will be actual by the way.
The one you got was this:
https://github.com/eduperez/mwlwifi_LEDE/commit/05b3e03c3183fabc408e7f85d89bc13985397552#diff-ecbb43dd23baa8a8eced8818efdf9814
Of course, the one I am building now is different:
https://github.com/eduperez/mwlwifi_LEDE/commit/b04d5599f7cc3e7b287c6304f6da8724ccb37aaf#diff-ecbb43dd23baa8a8eced8818efdf9814
I am sure the date will the different because the Docker build times and something like that, but the firmware will be the latest latest. 
It was the same for me as well, but it looked like the build dates were different. Since I flashed my router yesterday cleanly, then the bin files should have had a timestamp of the newest build. When I installed the newest ipk I did have to put --nodeps after opkg install due to a small difference in the kernel stamp. but since I have manually changed the bins and the ipk, I've been running for almost 6 hours without a hiccup, which it wouldn't have before.
Maybe your build environment for the wifi drivers needs to be cleaned to insure that you are getting the newest bins? the ipk just provides the kmod, so that the kernel knows where to find the drivers and how to use them, is it possible that the bins need to be inserted manually?
I extracted the Dec 11, which is of:
https://cdn.corifeus.com/lede/17.01.4/targets/mvebu/generic/packages/kmod-mwlwifi_4.4.92%2B10.3.4.0.git-2017-12-02-1_arm_cortex-a9_vfpv3.ipk
It was the exact wifi firmware, the sizes matched.
But the one I am building is the latest is what you put on you router, which is newer:
https://github.com/eduperez/mwlwifi_LEDE/commit/b04d5599f7cc3e7b287c6304f6da8724ccb37aaf#diff-ecbb43dd23baa8a8eced8818efdf9814
So the new kmod-mwlwifi will have that commit which is 2 days newer from now.
Maybe the one that was on from now 13 days ago, had a hicup, I don't know, for me it didn't had a problem still.
Since I use https://github.com/eduperez/mwlwifi_LEDE , it is always working.
I started a new build about 3 hours ago, so it will be done about 12 hours later, since I will update the routers as well.
I will verify of course. But I think it will be the same wifi firmware size. Given it is from the GIT, the date is werid though I know...
Right now, the older one shows on Android is like this, I can't wait on the new, though Android cannot go faster in so short time, and the other computer are all by ethernet cables:
Yes, I verified:
It is the exact Linksys WRT firmware. Just it was an older on December 11.
Right now it is the latest.
Including NodeJs 9.3.0 and Redis 4.0.6...
CIAO! 
That's true by the way, the dates I think from the 17.01.4 date, that's why.
But the firmware mwlwifi firmware is the latest.
So if I am gathering this information correctly, even though the dates were 10/18, the drivers themselves are the correct new ones right?
You can find on the releases in LEDE, 17.01.4 was Oct 18, that's why everything is when you build it is Oct 18, that's all, if you upgrade to my kmod-mwlwifi, it will show Oct 18, because of the build does that. But in /lib/firmware/mwlwifi you can verify the size of the firmware size and it is correct.
Every release will everything will be in that date.
http://downloads.lede-project.org/releases/ - 17.01.4 - Oct 18
https://lede-project.org/releases/17.01/start#history - Oct 18
So when I build everything and everything will be Oct 18, but when you look at the firmwares they are new, check the sizes that you uploaded. The latest is correct.
Before I had a few days older firmware because they was a newer 2 days ago that I built today, which is ready now.
That's all.
Ahh ok, thank you!
Hello. mariadb5.5.58 very old i like this. i have created but i found a problem. can you help
Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
sorry not using db server in the router. it is too much for a router, i moved to a server (Pi or x86-64)
so i can't help, sorry...