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Distributions
What is a Distribution?
A ROS distribution is a versioned set of ROS packages. These are akin to Linux distributions (e.g. Ubuntu). The purpose of the ROS distributions is to let developers work against a relatively stable codebase until they are ready to roll everything forward. Therefore once a distribution is released, we try to limit changes to bug fixes and non-breaking improvements for the core packages (every thing under ros-desktop-full). That generally applies to the whole community, but for «higher» level packages, the rules are less strict, and so it falls to the maintainers of a given package to avoid breaking changes.
List of Distributions
Below is a list of current and historic ROS 2 distributions. Rows in the table marked in green are the currently supported distributions.
Distro |
Release date |
Logo |
EOL date |
|---|---|---|---|
May 23rd, 2022 |
|
May 2027 |
|
May 23rd, 2021 |
|
December 9th, 2022 |
|
June 5th, 2020 |
|
May 2023 |
|
November 22nd, 2019 |
|
November 2020 |
|
May 31st, 2019 |
|
May 2021 |
|
December 14th, 2018 |
|
December 2019 |
|
July 2nd, 2018 |
|
July 2019 |
|
December 8th, 2017 |
|
December 2018 |
|
September 13th, 2017 |
December 2017 |
||
July 5th, 2017 |
September 2017 |
||
December 19th, 2016 |
Jul 2017 |
||
August 31th, 2015 |
December 2016 |
Future Distributions
For details on upcoming features see the roadmap.
There is a new ROS 2 distribution released yearly on May 23rd (World Turtle Day).
Distro |
Release date |
Supported until |
|---|---|---|
May 2023 |
November 2024 |
The expectation is to release new ROS 2 distributions once per year.
Rolling Distribution
ROS 2 Rolling Ridley is the rolling development distribution of ROS 2. It is described in REP 2002 and was first introduced in June 2020.
The Rolling distribution of ROS 2 serves two purposes:
it is a staging area for future stable distributions of ROS 2, and
it is a collection of the most recent development releases.
As the name implies, Rolling is continuously updated and can have in-place updates that include breaking changes. We recommend that most people use the most recent stable distribution instead (see List of Distributions).
Packages released into the Rolling distribution will be automatically released into future stable distributions of ROS 2. Releasing a ROS 2 package into the Rolling distribution follows the same procedures as all other ROS 2 distributions.