pdns-recursor returned his version on a dns txt request

[top-secrett]

Hello everbody.
Today I've found that pdns-recursor answered his version.
Is it a bug or feature? How to prevent behavior like this?
2023-12-07 05:04:46.597194082 pdns-recursor2 - CLIENT_QUERY 0 NOERROR 10.1.2.102 36472 10.1.2.131 53 6656 IPv4 UDP TXT VERSION.BIND 0.000000 0 - - - 104.234.254.138/32
2023-12-07 05:04:46.597791725 pdns-recursor2 - CLIENT_RESPONSE 0 NOERROR 10.1.2.102 36472 10.1.2.131 53 6656 IPv4 UDP TXT VERSION.BIND 0.000000 1 86400 PowerDNS Recursor 4.9.2 (built Nov 7 2023 08:30:24 by root@localhost) - 104.234.254.138/32

[rgacogne]

https://docs.powerdns.com/recursor/settings.html#version-string

[top-secrett]

If I want to override this, I should add someting like this?
version-string="recursor"

[omoerbeek]

Yes.

You might also want to check https://docs.powerdns.com/recursor/settings.html#server-id