I was trying out some features of net/http package that was introduce in version 1.22. But I was using Go version 1.23.1

It was simple net/http path parameter with request.PathValue()

func main() {
    router := http.NewServeMux()
    router.HandleFunc("GET /item/{id}", func(w http.ResponseWriter, r *http.Request) {
        id := r.PathValue("id")
        w.Write([]byte("Hello World ID: " + id))
    })

    server := http.Server{
        Addr:    ":8000",
        Handler: router,
    }
    server.ListenAndServe() 
}

But it did not work, it return 404 page not found even though I followed the tutorial exactly. After a few tries, I change to Go version 1.22.7 instead and it worked.

Why does this features works in Go 1.22.7 but not in 1.23.1?

I looked at the version release date of net/http, both 1.22.7 and 1.23.1 were released on same day 5th Sep, 2024.

What was the reason for Go having version 1.22.7 and 1.23.1 ?