[ci skip] Add a note about CI_Driver (issue #3140)
diff --git a/user_guide_src/source/general/creating_drivers.rst b/user_guide_src/source/general/creating_drivers.rst
index cf4ea5d..63ac839 100644
--- a/user_guide_src/source/general/creating_drivers.rst
+++ b/user_guide_src/source/general/creating_drivers.rst
@@ -18,4 +18,8 @@
.. note:: In order to maintain compatibility on case-sensitive
file systems, the Driver_name directory must be
- named in the format returned by ``ucfirst()``.
\ No newline at end of file
+ named in the format returned by ``ucfirst()``.
+
+.. note:: The Driver library's architecture is such that
+ the subclasses don't extend and therefore don't inherit
+ properties or methods of the main driver.
\ No newline at end of file