X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=README.md;h=2cb75b1665cc2a3aebcd0f38bc0709d3412036c3;hp=36177f803e5adeddccf2e621e593729d8ae1bcd4;hb=99ad328584e02d6a0e90e0840e7c2820688c29ab;hpb=2199563c28c5c28e6a9471182b8467af58343b50

diff --git a/README.md b/README.md
index 36177f803..2cb75b166 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,7 @@ components:
     that, the kernel version may probably be older, but we can't provide
     any guarantee. Please let us know if you are able to go lower
     without any problems.
-  - **[`liburcu`](http://urcu.so/) >= 0.8.0**: userspace RCU library,
+  - **[`liburcu`](http://www.liburcu.org/) >= 0.8.0**: userspace RCU library,
     by Mathieu Desnoyers and Paul E. McKenney.
   - **`libpopt` >= 1.13**:  command line arguments parsing library.
     - Debian/Ubuntu package: `libpopt-dev`
@@ -37,6 +37,9 @@ The following items are _optional_ dependencies:
   - **[Babeltrace](https://lttng.org/babeltrace)**: trace viewer.
     Enables the use of `lttng view` command.
     - Debian/Ubuntu package: `babeltrace`
+  - **[LTTng UST](https://lttng.org) (same version as LTTng Tools)**: userspace tracer.
+    Enables the tracing of userspace applications.
+    - Debian/Ubuntu package: `liblttng-ust-dev`
   - **Perl**: needed for `make check` and tests.
   - **Python >= 3.0**: needed for `make check` and tests.
     - Debian/Ubuntu package: `python3`