diff --git a/hypothesis-python/RELEASE.rst b/hypothesis-python/RELEASE.rst
deleted file mode 100644
index db1feb3dfe..0000000000
--- a/hypothesis-python/RELEASE.rst
+++ /dev/null
@@ -1,5 +0,0 @@
-RELEASE_TYPE: patch
-
-This release deprecates use of both ``min_dims > len(shape)`` and
-``max_dims > len(shape)`` when ``allow_newaxis == False`` in
-:func:`~hypothesis.extra.numpy.basic_indices` (:issue:`3091`).
diff --git a/hypothesis-python/docs/changes.rst b/hypothesis-python/docs/changes.rst
index 7c0db2a2a0..6d9055e104 100644
--- a/hypothesis-python/docs/changes.rst
+++ b/hypothesis-python/docs/changes.rst
@@ -18,6 +18,16 @@ Hypothesis 6.x
 
     .. include:: ../RELEASE.rst
 
+.. _v6.21.2:
+
+-------------------
+6.21.2 - 2021-09-15
+-------------------
+
+This release deprecates use of both ``min_dims > len(shape)`` and
+``max_dims > len(shape)`` when ``allow_newaxis == False`` in
+:func:`~hypothesis.extra.numpy.basic_indices` (:issue:`3091`).
+
 .. _v6.21.1:
 
 -------------------
diff --git a/hypothesis-python/src/hypothesis/extra/numpy.py b/hypothesis-python/src/hypothesis/extra/numpy.py
index 2b5b1681ba..e044015a3d 100644
--- a/hypothesis-python/src/hypothesis/extra/numpy.py
+++ b/hypothesis-python/src/hypothesis/extra/numpy.py
@@ -829,7 +829,7 @@ def basic_indices(
             f"min_dims={min_dims} is larger than len(shape)={len(shape)}, "
             "but allow_newaxis=False makes it impossible for an indexing "
             "operation to add dimensions.",
-            since="RELEASEDAY",
+            since="2021-09-15",
             has_codemod=False,
         )
     check_valid_dims(min_dims, "min_dims")
@@ -846,7 +846,7 @@ def basic_indices(
                 f"max_dims={max_dims} is larger than len(shape)={len(shape)}, "
                 "but allow_newaxis=False makes it impossible for an indexing "
                 "operation to add dimensions.",
-                since="RELEASEDAY",
+                since="2021-09-15",
                 has_codemod=False,
             )
     check_valid_dims(max_dims, "max_dims")
diff --git a/hypothesis-python/src/hypothesis/version.py b/hypothesis-python/src/hypothesis/version.py
index c63439c7f4..4deb5453b8 100644
--- a/hypothesis-python/src/hypothesis/version.py
+++ b/hypothesis-python/src/hypothesis/version.py
@@ -13,5 +13,5 @@
 #
 # END HEADER
 
-__version_info__ = (6, 21, 1)
+__version_info__ = (6, 21, 2)
 __version__ = ".".join(map(str, __version_info__))