add warning that the library is not released yet

Change-Id: I4f099f5ee5ea1e131c39d637263ebcdff70a484d
References: #7623
References: #7619

diff --git a/doc/build/intro.rst b/doc/build/intro.rst
index a4f68a2a88beae068505ed25acde81cef1a281a2..fba3c160a1926cb79772e5b03beb02f14091edca 100644 (file)
--- a/doc/build/intro.rst
+++ b/doc/build/intro.rst
@@ -126,6 +126,11 @@ approaches.
 Install via pip
 ---------------
 
+.. warning::  This section **does not apply until SQLAlchemy 2.0 is actually
+   released**, which as of January 26, 2022 the library is **not released yet**.
+   In the interim, these instructions **will not function** and will install
+   the latest 1.4 release.
+
 When ``pip`` is available, the distribution can be
 downloaded from PyPI and installed in one step::