of the https://lttng.org/man/1/lttng-view/[`lttng view`] command,
`make{nbsp}check` and tests.
+
-Debian/Ubuntu package: `babeltrace2`
+Debian/Ubuntu package: `babeltrace2 libbabeltrace2-dev`
* **https://lttng.org/[LTTng{nbh}UST]** (same minor version as {lt}):
LTTng user space tracing (applications and libraries).
+
Debian/Ubuntu package: `liblttng{nbh}ust{nbh}dev`
-* **Perl**: `make{nbsp}check` and tests.
-
* **https://www.python.org/[Python]{nbsp}≥{nbsp}3.4**:
`make{nbsp}check` and tests.
+
link:doc/python-howto.txt[`doc/python-howto.txt`] to understand how to
use them.
+== Supported versions
+
+The LTTng project supports the last two released stable versions
+(e.g. stable-2.13 and stable-2.12).
+
+Fixes are backported from the master branch to the last stable version unless
+those fixes would break the ABI or API. Those fixes may be backported to the
+second-last stable version, depending on complexity and ABI/API compatibility.
+
+Security fixes are backported from the master branch to both of the last stable
+version and the second-last stable version.
+
+New features are integrated into the master branch and not backported to the
+last stable branch.
+
== Community
Mailing list::