LTTng-tools 2.7 still needs to be
[built from source](#doc-building-from-source).
+
+If you need to trace [Java applications](#doc-java-application), you
+need to install the LTTng-UST Java agent also:
+
+<pre class="term">
+sudo apt-get install liblttng-ust-agent-java
+</pre>
+
+If you need to trace [Python applications](#doc-python-application),
+you need to install the LTTng-UST Python agent also:
+
+<pre class="term">
+sudo apt-get install python3-lttngust
+</pre>