PEP 761: Deprecation doesn't affect previous signatures (python#4069)

peps/pep-0761.rst

@@ -197,6 +197,14 @@ commitment that is typically done on a volunteer basis. Thus we see removal
 of PGP key management duties as a step towards reducing burnout and stress
 of future release managers and improving the sustainability of CPython.
 
+Removing previous PGP signatures
+--------------------------------
+
+This PEP doesn't intend to break any infrastructure built around existing Python
+versions, instead only changing the expectations around future Python versions.
+Thus all PGP signatures that are already available on python.org will continue
+to be available even after PGP discontinuance.
+
 Appendix
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