[DOCS-3174] Add note for v4 cutoff (#279)

README.rst

@@ -12,14 +12,17 @@ Python driver for Fauna v4 (deprecated)
 
 **\*\*** **WARNING** **\*\***
 
-Fauna is decomissioning FQL v4 on June 30, 2025. See the `v4 end of life (EOL) announcement
-<https://docs.fauna.com/fauna/v4/#fql-v4-end-of-life>`_ and `related FAQ
-<https://docs.fauna.com/fauna/v4/migration/faq>`_.
+Fauna is decommissioning FQL v4 on June 30, 2025.
 
-This driver is not compatible with FQL v10, the latest version. Ensure you
-migrate existing projects to the official v10 driver by the v4 EOL date:
+This driver is not compatible with FQL v10, the latest version. Fauna accounts
+created after August 21, 2024 must use FQL v10. Ensure you migrate existing
+projects to the official v10 driver by the v4 EOL date:
 `https://github.com/fauna/fauna-python <https://github.com/fauna/fauna-python>`_
 
+See the `v4 end of life (EOL) announcement
+<https://docs.fauna.com/fauna/v4/#fql-v4-end-of-life>`_ and `related FAQ
+<https://docs.fauna.com/fauna/v4/migration/faq>`_.
+
 ----
 
 The offical Python driver for `Fauna v4 <https://docs.fauna.com/fauna/v4/>`_