diff --git a/README.md b/README.md
new file mode 100644
index 0000000..aa18997
--- /dev/null
+++ b/README.md
@@ -0,0 +1,9 @@
+Debian stable determines the most ancient set of supported dependencies:
+
+* glibc 2.24
+* Linux 4.9
+* Clang 3.8 or GCC 6.3
+
+However, using more recent releases is highly recommended. Older versions of
+the dependencies may be compatible at the moment but are not tested and will
+explicitly not be supported.