pg_restore: [archiver] unsupported version (1.14) in file header

ubuntu guys: most likely your pg_restore is outdated. Just use postgres doc and install newest version of postgres:

1. Create the file /etc/apt/sources.list.d/pgdg.list and add a line for the repository: deb http://apt.postgresql.org/pub/repos/apt/ YOUR_UBUNTU_VERSION_HERE-pgdg main where ubuntu versions are:

   • 20.04 – focal
   • 18.04 – bionic
   • 16.04 – xenial

2. Add keys: wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -

3. sudo apt-get update && sudo apt-get upgrade

It worked for me!