Been asked to migrate to XHTTP H2 & H3, and VLESS FLOW & Seed ASAP

[gomacro999]

[Info] infra/conf/serial: Reading config: &{Name:config.json Format:json}
[Warning] common/errors: The feature WebSocket transport (with ALPN http/1.1, etc.) is deprecated, not recommended for using and might be removed. Please migrate to XHTTP H2 & H3 as soon as possible.
[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.

2026/05/02 17:32:02.211031 [Warning] core: Xray 26.2.6 started
2026/05/02 17:32:03.051980 from tcp:127.0.0.1:7793 accepted tcp:www.google.com:443 [socks -> proxy]
2026/05/02 17:32:04 当前延迟: 259 ms，none

I got the upper message when trying to use v2ray[Can't use it actually!!!] and was asked to do some migrations. I'm a rookie on this so can anyone help me out please? Solution with details would be appreciated!

Thanks.