EDE 18/20 recursion failures after devel release upgrade 9.21.14 -> 9.21.15. bug, or config change req'd?

[pgnd]

building devel release on

	distro
		Name: Fedora Linux 43 (Forty Three)
		Version: 43
		Codename:

v9.21.14

	rpm -qa | grep bind9-current
		bind9-current-git_v9.21.14-0.20251119_130057.fc43.x86_64

	named -V
		BIND 9.21.14 (Development Release) <id:noscm>
		running on Linux x86_64 6.17.8-300.fc43.x86_64 #1 SMP PREEMPT_DYNAMIC Fri Nov 14 01:47:12 UTC 2025
		built by meson with ...

resolves ok

	dig A isc.org @::1

		; <<>> DiG 9.21.14 <<>> A isc.org
		;; global options: +cmd
		;; Got answer:
		;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 63331
		;; flags: qr rd ra ad; QUERY: 1, ANSWER: 4, AUTHORITY: 0, ADDITIONAL: 1

		;; OPT PSEUDOSECTION:
		; EDNS: version: 0, flags:; udp: 4096
		; COOKIE: b1c0919d86c0b01001000000691dc03a9ed8ea5890000147 (good)
		;; QUESTION SECTION:
		;isc.org.                       IN      A

		;; ANSWER SECTION:
		isc.org.                244     IN      A       151.101.194.217
		isc.org.                244     IN      A       151.101.2.217
		isc.org.                244     IN      A       151.101.66.217
		isc.org.                244     IN      A       151.101.130.217

		;; Query time: 0 msec
		;; SERVER: ::1#53(::1) (UDP)
		;; WHEN: Wed Nov 19 08:03:54 EST 2025
		;; MSG SIZE  rcvd: 128

after upgrade to v9.21.15

	rpm -Uvh \
	 bind9-current-git_v9.21.15-0.20251119_131709.fc43.x86_64.rpm \

	systemctl restart bind9-current

	named -V
		BIND 9.21.15 (Development Release) <id:noscm>
		running on Linux x86_64 6.17.8-300.fc43.x86_64 #1 SMP PREEMPT_DYNAMIC Fri Nov 14 01:47:12 UTC 2025
		built by meson with ...

resolver fails

	dig A isc.org @::1

		; <<>> DiG 9.21.15 <<>> A isc.org @::1
		;; global options: +cmd
		;; Got answer:
		;; ->>HEADER<<- opcode: QUERY, status: REFUSED, id: 29342
		;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 1
		;; WARNING: recursion requested but not available

		;; OPT PSEUDOSECTION:
		; EDNS: version: 0, flags:; udp: 4096
		; COOKIE: e714b97a4e1821be01000000691dc69fed0b5edc11f55428 (good)
		; EDE: 18 (Prohibited)
		; EDE: 20 (Not Authoritative): (recursion disabled)
		;; QUESTION SECTION:
		;isc.org.                       IN      A

		;; Query time: 0 msec
		;; SERVER: ::1#53(::1) (UDP)
		;; WHEN: Wed Nov 19 08:31:11 EST 2025
		;; MSG SIZE  rcvd: 94

note the

	; EDE: 18 (Prohibited)
	; EDE: 20 (Not Authoritative): (recursion disabled)

and logs filling with

	19-Nov-2025 08:32:48.468 resolver: debug 1: set ede: info-code 18 extra-text (null)
	19-Nov-2025 08:32:48.468 resolver: debug 1: set ede: info-code 20 extra-text recursion disabled


i see back in

	Notes for BIND 9.21.7
		...
		Support was added for EDE codes 20 (Not Authoritative) when the client requests recursion (RD) but the server has recursion disabled.
		...

but nothing obvious in 9.21.15 release notes re: EDE xx, recursion

is this a bug? or a required change in config?