Yeah looks like they're back on M5.

dang saying it's temporary: https://news.ycombinator.com/item?id=32031136

    $ dig news.ycombinator.com

    ; <<>> DiG 9.10.6 <<>> news.ycombinator.com
    ;; global options: +cmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 54819
    ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

    ;; OPT PSEUDOSECTION:
    ; EDNS: version: 0, flags:; udp: 512
    ;; QUESTION SECTION:
    ;news.ycombinator.com.  IN A

    ;; ANSWER SECTION:
    news.ycombinator.com. 1 IN A 209.216.230.207

    ;; Query time: 79 msec
    ;; SERVER: 100.100.100.100#53(100.100.100.100)
    ;; WHEN: Wed Oct 29 13:59:29 EDT 2025
    ;; MSG SIZE  rcvd: 65

And that IP says it's with M5 again.