I have ubuntu 18.04, the default package for linphone version is 3.6, but i need to install a newer version which is linphone 3.12 which found on ubuntu 20.04 packages, although i don't need to upgrade whole os to ubuntu 20.04 but need to keep current release 18.04
I have read about apt pinning on the following article: https://email@example.com/how-to-install-packages-from-a-newer-distribution-without-installing-unwanted-6584fa93208f and tried to add a file on preferences folder /etc/apt/preferences.d/linphone.pref as following:
Package: * Pin: release n=bionic Pin-Priority: 800 Package: linphone Pin: release n=focal Pin-Priority: 600 Package: linphone-common Pin: release n=focal Pin-Priority: 600 Package: linphone-dbg Pin: release n=focal Pin-Priority: 600 Package: linphone-nogtk Pin: release n=focal Pin-Priority: 600
also i did add all 20.04 repo to the file /etc/apt/sources.list
after i did update and tried to install linphone, the result was linphone 3.6 thats for ubuntu 18.04 repo and not 3.12
would u help please solve this issue?