Can't update mosquitto-clients from 1.4.15 to 1.6.9

Question

To update mosquitto-clients, I have tried

sudo apt-get update
sudo apt-get install mosquitto-clients

However, this doesn't update the version for me.

Reading package lists... Done
Building dependency tree
Reading state information... Done
mosquitto-clients is already the newest version (1.4.15-2ubuntu0.18.04.3).
The following packages were automatically installed and are no longer required:
  bridge-utils ubuntu-fan
Use 'sudo apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 73 not upgraded.

I want to use tls1.3 (using mosquitto_pub --tls-version tlsv1.3) and from the system with 1.4.15 I get Error: Problem setting TLS options. When using mosquitto_pub from Ubuntu wsl with mosquitto-clients 1.6.9, I can easily connect and send data.

Can someone help please. Both systems are linux.

Answer 1

Please follow the documentation to configure the repo so you can see all the versions available.

Then if you need to install version 1.6.10 (I did not see 1.6.9)

root@debian1:~# apt install mosquitto-clients=1.6.10-0mosquitto1~buster1 libmosquitto1=1.6.10-0mosquitto1~buster1

To search for all the versions available for a package.

root@debian1:~# apt-cache policy mosquitto-clients | less

But it depends on libmosquitto1 library so please also check that.

root@debian1:~# apt-cache policy libmosquitto1 | less