diff --git a/docs/conf.py b/docs/conf.py
index 427e537f9b..3e0e96f6da 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -38,6 +38,16 @@
 
 pygments_style = 'default'
 
+rst_prolog = """
+.. IMPORTANT::
+  Since May 2022, packages providing Architecture Definition assets do *not* include CLI
+  utilities/wrappers to interact with Yosys, Verilog-to-Routing, etc.
+  For backwards compatibility, end-users can install Python package ``f4pga`` from
+  :gh:`chipsalliance/f4pga`.
+  For instance:
+  ``pip install https://github.com/chipsalliance/f4pga/archive/main.zip#subdirectory=f4pga``.
+"""
+
 todo_include_todos = False
 
 # -- Options for HTML output -----------------------------------------------------------------------