Requirements

To install Pontoon, you will need:

• Debian or Ubuntu with systemd and an administrator (root) access,

• Python with venv module,

• A C / C++ compiler (required to install some of the Python dependencies),

• PostgreSQL

• Git

• And optionally the clients for other VCS you want to use (Mercurial, SVN)

You will find the supported versions synthesized in the table below:

Distribution	Python	PostgreSQL	Distribution End of Support
Debian 11 (bullseye)	3.9	13	→ 2026-06
Debian 12 (bookworm)	3.11	15	→ 2028-06
Ubuntu 22.04 LTS (jammy)	3.10	14	→ 2027-04

Warning

Ubuntu 20.04 LTS (focal) is not supported anymore: some Python packages used by Pontoon now require Python >= 3.9.

Note

Please note that the “end of support” date is the end of the Linux distribution support, not the date until when Pontoon will be maintained on this system: if Pontoon’s developers stop supporting Python or PostgreSQL versions available on those platforms, the support will be dropped for newer releases.