massive unneccessary warning log #5667
Description
Integrity requirements
- I have read all the comments in the issue template and ensured that this issue meet the requirements.
- I confirm that I have read the documentation, understand the meaning of all the configuration items I wrote, and did not pile up seemingly useful options or default values.
- I provided the complete config and logs, rather than just providing the truncated parts based on my own judgment.
- I searched issues and did not find any similar issues.
- The problem can be successfully reproduced in the latest Release
Description
in latest version (26.2.6) if we use vless protocol without encryption or flow we will get a single line of warning multiple times, same as amount of users (if we have 10K user we will get 10K useless line of warning logs)
this is producing huge amount of useless data at startup and delay, for projects like PasarGuard-node which have a timeout for start function to prevent deadlocks
i think showing this warning once should be enough
related code line and commit:
Line 72 in 12ee51e
5836f36
Reproduction Method
use any inbound that have no encryption and huge amount of user, having multiple inbound with this condition will make the situation worse.
Client config
Server config
{
"log": {
"loglevel": "info"
},
"inbounds": [
{
"tag": "VLESS+TCP+NONE+8080",
"listen": "0.0.0.0",
"port": 8080,
"protocol": "vless",
"settings": {
"clients": [],
"decryption": "none"
},
"streamSettings": {
"network": "tcp",
"security": "none",
"tcpSettings": {
"acceptProxyProtocol": false,
"header": {
"type": "none"
}
}
},
"sniffing": {
"enabled": true,
"destOverride": [
"http",
"tls",
"quic",
"fakedns"
],
"metadataOnly": false,
"routeOnly": false
}
}
],
"outbounds": [
{
"protocol": "freedom",
"tag": "DIRECT"
},
{
"protocol": "blackhole",
"tag": "BLOCK"
}
],
"routing": {
"rules": [
{
"ip": [
"geoip:private"
],
"outboundTag": "BLOCK",
"type": "field"
}
]
}
}Client log
Server log
2026/02/08 22:35:58.216999 [Warning] common/errors: The feature VLESS (with no Flow, etc.) is deprecated, not recommended for using and might be removed. Please migrate to VLESS with Flow & Seed as soon as possible.
2026/02/08 22:35:58.217004 [Warning] common/errors: The feature VLESS (with no Flow, etc.) is deprecated, not recommended for using and might be removed. Please migrate to VLESS with Flow & Seed as soon as possible.
2026/02/08 22:35:58.217009 [Warning] common/errors: The feature VLESS (with no Flow, etc.) is deprecated, not recommended for using and might be removed. Please migrate to VLESS with Flow & Seed as soon as possible.
2026/02/08 22:35:58.217013 [Warning] common/errors: The feature VLESS (with no Flow, etc.) is deprecated, not recommended for using and might be removed. Please migrate to VLESS with Flow & Seed as soon as possible.
2026/02/08 22:35:58.217017 [Warning] common/errors: The feature VLESS (with no Flow, etc.) is deprecated, not recommended for using and might be removed. Please migrate to VLESS with Flow & Seed as soon as possible.