Server response: Unsupported version: 24.10.1 for JCG Q20

{
"url": "https://sysupgrade.openwrt.org",
"branch": "24.10",
"revision": "r28427-6df0e3d02a",
"efi": null,
"advanced_mode": "0",
"request_hash": "",
"sha256_unsigned": "",
"client": "luci/25.104.480328e5fed1",
"packages": {
"iwinfo": "2024.10.20b94f066e-r1",
"opkg": "2024.10.1638eccbb1-r1",
"wpad-basic-mbedtls": "2024.09.155ace39b0-r2",
"libpthread": "1.2.5-r4",
"rpcd": "2024.09.179f4b86e7-r1",
"libiwinfo": "2024.10.20b94f066e-r1",
"lsof": "4.99.3-r1",
"kmod-nft-fib": "6.6.73-r1",
"kmod-nfnetlink": "6.6.73-r1",
"kmod-nf-reject6": "6.6.73-r1",
"kmod-crypto-aead": "6.6.73-r1",
"openssl-util": "3.0.16-r1",
"kmod-nf-flow": "6.6.73-r1",
"kmod-lib-crc-ccitt": "6.6.73-r1",
"px5g-mbedtls": "11",
"getrandom": "2024.04.2685f10530-r1",
"kmod-pppoe": "6.6.73-r1",
"kmod-pppox": "6.6.73-r1",
"kmod-nf-reject": "6.6.73-r1",
"procd-ujail": "2024.12.2242d39376-r1",
"base-files": "16556df0e3d02a",
"kmod-nf-nat": "6.6.73-r1",
"kmod-crypto-crc32c": "6.6.73-r1",
"libustream-mbedtls": "2024.07.2899bd3d2b-r1",
"firewall4": "2024.12.1818fc0ead-r1",
"uboot-envtools": "2024.07-r1",
"dnsmasq": "2.90-r4",
"kmod-crypto-acompress": "6.6.73-r1",
"rpcd-mod-ucode": "2024.09.179f4b86e7-r1",
"ucode-mod-math": "2024.07.22b610860d-r3",
"kmod-lib-crc32c": "6.6.73-r1",
"opennds": "10.3.0-r1",
"kmod-nft-nat": "6.6.73-r1",
"libmbedtls": "3.6.2-r1",
"libmnl": "1.0.5-r1",
"jansson": "2.14-r3",
"odhcp6c": "2024.09.25b6ae9ffa-r1",
"uclient-fetch": "2024.10.2288ae8f20-r1",
"uci": "2025.01.2016ff0bad-r1",
"luci-ssl": "24.328.435919e70c9a",
"dropbear": "2024.86-r1",
"libnftnl": "1.2.8-r1",
"adguardhome": "0.107.56-r1",
"rpcd-mod-file": "2024.09.179f4b86e7-r1",
"mtd": "26",
"odhcpd-ipv6only": "2024.05.08a2988231-r1",
"kmod-crypto-authenc": "6.6.73-r1",
"luci-app-sqm": "25.055.6933767763a0",
"kmod-nf-log": "6.6.73-r1",
"urandom-seed": "3",
"ppp": "2.5.1-r1",
"kmod-leds-gpio": "6.6.73-r1",
"kmod-gpio-button-hotplug": "6.6.73-r5",
"logd": "2024.04.2685f10530-r1",
"kmod-nf-log6": "6.6.73-r1",
"luci-app-attendedsysupgrade": "25.104.480328e5fed1",
"kmod-crypto-des": "6.6.73-r1",
"kmod-crypto-hw-eip93": "6.6.73-r1",
"kmod-nft-offload": "6.6.73-r1",
"kmod-ppp": "6.6.73-r1",
"uhttpd": "2023.06.2534a8a74d-r4",
"kmod-nf-conntrack": "6.6.73-r1",
"kmod-mt7915-firmware": "6.6.73.2025.01.148e4f72b6-r1",
"ca-bundle": "20240203-r1",
"libuclient": "2024.10.2288ae8f20-r1",
"luci": "24.297.79519bcd13b9",
"kmod-nf-conntrack6": "6.6.73-r1",
"kmod-lib-lzo": "6.6.73-r1",
"rpcd-mod-iwinfo": "2024.09.179f4b86e7-r1",
"kmod-nft-core": "6.6.73-r1",
"uhttpd-mod-ubus": "2023.06.2534a8a74d-r4",
"hostapd-common": "2024.09.155ace39b0-r2",
"acme": "4.0.0",
"urngd": "2023.11.0144365eb1-r1",
"kmod-slhc": "6.6.73-r1",
"ppp-mod-pppoe": "2.5.1-r1"
},
"profile": "jcg,q20",
"target": "ramips/mt7621",
"version": "24.10.0",
"diff_packages": true,
"filesystem": "squashfs"
}

Start by reproducing the request against https://sysupgrade.openwrt.org using the supplied branch, version, target, and profile values. Trace how the server handles the 24.10.0 request for jcg,q20 and determine why it reports version 24.10.1 as unsupported. Done means the valid JCG Q20 request is accepted or the incompatibility is clearly documented.