What does it mean of `5feb0df`

Hello
My memory of ZBT is 512 MB
I see the Changelog said the :
5feb0df ramips: remove memory node for ZBT MT7621 devices .

Can I still install the latest update?

Thanks!

that's a commit hash (turncated version)
there are two version of ZBT (both with 512mb ram) so there is not enought info to give you a firmware
https://openwrt.org/toh/zbt/zbt_wg3526

https://git.openwrt.org/?p=openwrt/openwrt.git;a=commitdiff;h=5feb0df9bb3bd83ec49af17d2abc261fc58e2551

Sorry.

My devices info as follows:
ZBT-WE1326
flash : 16Mb
Current Firmware Version is OpenWrt 18.06.1
Thanks for your reply

Yeah, it's Supported
https://openwrt.org/toh/hwdata/zbt/zbt_we1326

if you saw that page there is Firmware OpenWrt Upgrade URL: upder it