[pep-0596] Include 3.9.4 ABI compat hotfix

Author: ambv

pep-0596.rst

@@ -71,20 +71,21 @@ Actual:
 - 3.9.1 final: Monday, 2020-12-07
 - 3.9.2 candidate 1: Monday, 2021-02-16
 - 3.9.2 final: Monday, 2021-02-19
-- 3.9.3: Friday, 2021-04-02 (security hotfix)
+- 3.9.3: Friday, 2021-04-02 (security hotfix; recalled due to bpo-43710)
+- 3.9.4: Sunday, 2021-04-04 (ABI compatibility hotfix)
 
 Expected:
 
-- 3.9.4: Monday, 2021-05-03
-- 3.9.5: Monday, 2021-06-28
-- 3.9.6: Monday, 2021-08-30
-- 3.9.7: Monday, 2021-11-01
-- 3.9.8: Monday, 2022-01-03
-- 3.9.9: Monday, 2022-02-28
+- 3.9.5: Monday, 2021-05-03
+- 3.9.6: Monday, 2021-06-28
+- 3.9.7: Monday, 2021-08-30
+- 3.9.8: Monday, 2021-11-01
+- 3.9.9: Monday, 2022-01-03
+- 3.9.10: Monday, 2022-02-28
 
 Final regular bugfix release with binary installers:
 
-- 3.9.10: Monday, 2022-05-02
+- 3.9.11: Monday, 2022-05-02
 
 Source-only security fix releases after that until October 2025.