yolo upgraded my banana pi r4 #openwrt from 24.10.6 to 25.12.2, keeping all configuration:

in `/etc/network/config`, replaced all occurrences of 'eth1' with 'lan4', and 'eth2' with 'sfp-wan'. (per https://forum.openwrt.org/t/openwrt-25-12-2-service-release/248287#p-1295069-upgrading-to-25122-4)

in `/etc/config/system`, under `config system`, added `option compat_version '1.1'`.

owut complained about four downgrades:
luci-app-adblock
procd
procd-seccomp
procd-ujail

used the force:
`owut upgrade --version-to 25.12.2 --force`

if you read this, I suppose it worked.

OpenWrt 25.12.2 - Service Release

Hi, The OpenWrt community is proud to announce the second service release of the OpenWrt 25.12 stable series. Download firmware images using the OpenWrt Firmware Selector: https://firmware-selector.openwrt.org/?version=25.12.2 Download firmware images directly from our download servers: https://downloads.openwrt.org/releases/25.12.2/targets/ Main changes between OpenWrt 25.12.1 and OpenWrt 25.12.2 Only the main changes are listed below. See the full changelog for details. Device support ...

OpenWrt Forum
#trythisathome but also #ymmv. my config is perhaps not the most exotic, but does use the sfp-wan interface, contains a jool-based #ipv6mostly setup (thank you @Oskar456), wireguard, of course #unbound (+adblock) , chrony, and some other stuff.