Hope it's a right place to ask. Found this thread trying to install bind9-dyndb-ldap. Trying to replicate a process in https://bugs.launchpad.net/ubuntu/+source/bind9/+bug/2003586/comments/11 have the following:

# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 22.04.3 LTS
Release:        22.04
Codename:       jammy

# apt list | grep bind9

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

bind9-dev/jammy-updates,jammy-security 1:9.18.12-0ubuntu0.22.04.2 amd64
bind9-dnsutils/jammy-updates,jammy-security,now 1:9.18.12-0ubuntu0.22.04.2 amd64 [installed,automatic]
bind9-doc/jammy-updates,jammy-security 1:9.18.12-0ubuntu0.22.04.2 all
bind9-dyndb-ldap/jammy-updates 11.9-5ubuntu0.22.04.1 amd64
bind9-host/jammy-updates,jammy-security,now 1:9.18.12-0ubuntu0.22.04.2 amd64 [installed,automatic]
bind9-libs/jammy-updates,jammy-security,now 1:9.18.12-0ubuntu0.22.04.2 amd64 [installed,automatic]
bind9-utils/jammy-updates,jammy-security 1:9.18.12-0ubuntu0.22.04.2 amd64
bind9/jammy-updates,jammy-security 1:9.18.12-0ubuntu0.22.04.2 amd64
bind9utils/jammy-updates,jammy-security 1:9.18.12-0ubuntu0.22.04.2 all
libbind9-161/jammy 1:9.11.19+dfsg-2.1ubuntu3 amd64

# cat <<EOF >/etc/apt/sources.list.d/ubuntu-$(lsb_release -cs)-proposed.list
> # Enable Ubuntu proposed archive
> deb http://archive.ubuntu.com/ubuntu/ $(lsb_release -cs)-proposed restricted main multiverse universe
> EOF

# cat /etc/apt/sources.list.d/ubuntu-$(lsb_release -cs)-proposed.list
# Enable Ubuntu proposed archive
deb http://archive.ubuntu.com/ubuntu/ jammy-proposed restricted main multiverse universe

# apt update && apt dist-upgrade -y
...

# apt install -y bind9-dyndb-ldap
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 bind9-dyndb-ldap : Depends: bind9-libs (= 1:9.18.12-0ubuntu0.22.04.1) but 1:9.18.12-0ubuntu0.22.04.2 is to be installed
E: Unable to correct problems, you have held broken packages.

# apt list | grep bind9

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

bind9-dev/jammy-updates,jammy-security 1:9.18.12-0ubuntu0.22.04.2 amd64
bind9-dnsutils/jammy-updates,jammy-security,now 1:9.18.12-0ubuntu0.22.04.2 amd64 [installed,automatic]
bind9-doc/jammy-updates,jammy-security 1:9.18.12-0ubuntu0.22.04.2 all
bind9-dyndb-ldap/jammy-updates 11.9-5ubuntu0.22.04.1 amd64
bind9-host/jammy-updates,jammy-security,now 1:9.18.12-0ubuntu0.22.04.2 amd64 [installed,automatic]
bind9-libs/jammy-updates,jammy-security,now 1:9.18.12-0ubuntu0.22.04.2 amd64 [installed,automatic]
bind9-utils/jammy-updates,jammy-security 1:9.18.12-0ubuntu0.22.04.2 amd64
bind9/jammy-updates,jammy-security 1:9.18.12-0ubuntu0.22.04.2 amd64
bind9utils/jammy-updates,jammy-security 1:9.18.12-0ubuntu0.22.04.2 all
libbind9-161/jammy 1:9.11.19+dfsg-2.1ubuntu3 amd64

# apt install -y bind9-dyndb-ldap/jammy-proposed
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package bind9-dyndb-ldap is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Release 'jammy-proposed' for 'bind9-dyndb-ldap' was not found