diff --git a/CHANGES.rst b/CHANGES.rst
index f67d92fc..997df57d 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,3 +1,80 @@
+0.22.0 (2024-11-15)
+===================
+
+Documentation
+-------------
+
+- use ``towncrier`` to handle change log entries (`#442
+  <https://github.com/spacetelescope/rad/issues/442>`_)
+- Update schema docs to clarify headings and add links to roman_datamodels and
+  asdf. (`#446 <https://github.com/spacetelescope/rad/issues/446>`_)
+- Added ``refpix`` entry in ``ref_file``. (`#458
+  <https://github.com/spacetelescope/rad/issues/458>`_)
+
+
+New Features
+------------
+
+- Add maxLength keywords to schemas matching nvarchar archive_catalog
+  datatypes. (`#448 <https://github.com/spacetelescope/rad/issues/448>`_)
+- Added ePSF, ABVegaOffset, and ApCorr schemas (`#452
+  <https://github.com/spacetelescope/rad/issues/452>`_)
+- remove var_flat from list of required mosaic attributes (`#462
+  <https://github.com/spacetelescope/rad/issues/462>`_)
+- Add python 3.13 support. (`#468
+  <https://github.com/spacetelescope/rad/issues/468>`_)
+- Remove units from Guidewindow schema. (`#499
+  <https://github.com/spacetelescope/rad/issues/499>`_)
+
+
+Misc
+----
+
+- Updated ``cal_step`` and ``cal_log`` schema information. (`#466
+  <https://github.com/spacetelescope/rad/issues/466>`_)
+- Update ``coordinate`` schema descriptions (`#467
+  <https://github.com/spacetelescope/rad/issues/467>`_)
+- Update ``ephemeris`` schema descriptions (`#469
+  <https://github.com/spacetelescope/rad/issues/469>`_)
+- Updates ``guide_star``, ``instrument``, and ``photometry`` schemas (`#471
+  <https://github.com/spacetelescope/rad/issues/471>`_)
+- Add ``rcs`` and removes ``aperture``, ``target`` schemas (`#473
+  <https://github.com/spacetelescope/rad/issues/473>`_)
+- Update and add keywords and descriptions in the basic-1.0.0 and statistics
+  schemas (`#474 <https://github.com/spacetelescope/rad/issues/474>`_)
+- Update the pointing schema (`#475
+  <https://github.com/spacetelescope/rad/issues/475>`_)
+- Update velocity_aberration descriptions and keywords (`#476
+  <https://github.com/spacetelescope/rad/issues/476>`_)
+- Updates wcs keywords and attribute information (`#477
+  <https://github.com/spacetelescope/rad/issues/477>`_)
+- Update exposure and program attributes information (`#478
+  <https://github.com/spacetelescope/rad/issues/478>`_)
+- Update ref_file descriptions (`#479
+  <https://github.com/spacetelescope/rad/issues/479>`_)
+- Update observation descriptions (`#480
+  <https://github.com/spacetelescope/rad/issues/480>`_)
+- Update visit, l1, and l2 attribute information (`#481
+  <https://github.com/spacetelescope/rad/issues/481>`_)
+- Update and add descriptions in the individual image metadata schema.
+  Address merge issues created by the L1 and L2 metadata updates. (`#487
+  <https://github.com/spacetelescope/rad/issues/487>`_)
+- Added alternate WFI aperture names to match both the SIAF and legacy names.
+  (`#498 <https://github.com/spacetelescope/rad/issues/498>`_)
+- Added CRDS and reference steps required lists. (`#506
+  <https://github.com/spacetelescope/rad/issues/506>`_)
+- Updated the ePSF schema. (`#507
+  <https://github.com/spacetelescope/rad/issues/507>`_)
+- pin `asdf<4.0` (`#509 <https://github.com/spacetelescope/rad/issues/509>`_)
+
+
+Deprecations and Removals
+-------------------------
+
+- Remove units from rad schema. (`#485
+  <https://github.com/spacetelescope/rad/issues/485>`_)
+
+
 0.21.0 (2024-08-06)
 -------------------
 
diff --git a/changes/442.doc.rst b/changes/442.doc.rst
deleted file mode 100644
index 72481759..00000000
--- a/changes/442.doc.rst
+++ /dev/null
@@ -1 +0,0 @@
-use ``towncrier`` to handle change log entries
diff --git a/changes/446.doc.rst b/changes/446.doc.rst
deleted file mode 100644
index 47c1acc0..00000000
--- a/changes/446.doc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Update schema docs to clarify headings and add links to roman_datamodels and asdf.
diff --git a/changes/448.feature.rst b/changes/448.feature.rst
deleted file mode 100644
index 11a9f914..00000000
--- a/changes/448.feature.rst
+++ /dev/null
@@ -1 +0,0 @@
-Add maxLength keywords to schemas matching nvarchar archive_catalog datatypes.
diff --git a/changes/452.feature.rst b/changes/452.feature.rst
deleted file mode 100644
index 73ad4c73..00000000
--- a/changes/452.feature.rst
+++ /dev/null
@@ -1 +0,0 @@
-Added ePSF, ABVegaOffset, and ApCorr schemas
diff --git a/changes/458.doc.rst b/changes/458.doc.rst
deleted file mode 100644
index c4975419..00000000
--- a/changes/458.doc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Added ``refpix`` entry in ``ref_file``.
diff --git a/changes/462.feature.rst b/changes/462.feature.rst
deleted file mode 100644
index ce8acea6..00000000
--- a/changes/462.feature.rst
+++ /dev/null
@@ -1 +0,0 @@
-remove var_flat from list of required mosaic attributes
diff --git a/changes/466.misc.rst b/changes/466.misc.rst
deleted file mode 100644
index 24114c57..00000000
--- a/changes/466.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Updated ``cal_step`` and ``cal_log`` schema information.
diff --git a/changes/467.misc.rst b/changes/467.misc.rst
deleted file mode 100644
index 11a94f92..00000000
--- a/changes/467.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Update ``coordinate`` schema descriptions
diff --git a/changes/468.feature.rst b/changes/468.feature.rst
deleted file mode 100644
index 09dfd8af..00000000
--- a/changes/468.feature.rst
+++ /dev/null
@@ -1 +0,0 @@
-Add python 3.13 support.
diff --git a/changes/469.misc.rst b/changes/469.misc.rst
deleted file mode 100644
index 7b094c0d..00000000
--- a/changes/469.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Update ``ephemeris`` schema descriptions
diff --git a/changes/471.misc.rst b/changes/471.misc.rst
deleted file mode 100644
index ce2f6345..00000000
--- a/changes/471.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Updates ``guide_star``, ``instrument``, and ``photometry`` schemas
diff --git a/changes/473.misc.rst b/changes/473.misc.rst
deleted file mode 100644
index 154a83fa..00000000
--- a/changes/473.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Add ``rcs`` and removes ``aperture``, ``target`` schemas
diff --git a/changes/474.misc.rst b/changes/474.misc.rst
deleted file mode 100644
index b655f3b2..00000000
--- a/changes/474.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Update and add keywords and descriptions in the basic-1.0.0 and statistics schemas
diff --git a/changes/475.misc.rst b/changes/475.misc.rst
deleted file mode 100644
index 54b27a2d..00000000
--- a/changes/475.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Update the pointing schema
diff --git a/changes/476.misc.rst b/changes/476.misc.rst
deleted file mode 100644
index 25711ba7..00000000
--- a/changes/476.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Update velocity_aberration descriptions and keywords
diff --git a/changes/477.misc.rst b/changes/477.misc.rst
deleted file mode 100644
index 25ec8864..00000000
--- a/changes/477.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Updates wcs keywords and attribute information
diff --git a/changes/478.misc.rst b/changes/478.misc.rst
deleted file mode 100644
index a36dcad0..00000000
--- a/changes/478.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Update exposure and program attributes information
diff --git a/changes/479.misc.rst b/changes/479.misc.rst
deleted file mode 100644
index 0ff1523d..00000000
--- a/changes/479.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Update ref_file descriptions
diff --git a/changes/480.misc.rst b/changes/480.misc.rst
deleted file mode 100644
index 251b2be7..00000000
--- a/changes/480.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Update observation descriptions
diff --git a/changes/481.misc.rst b/changes/481.misc.rst
deleted file mode 100644
index 5c77f09b..00000000
--- a/changes/481.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Update visit, l1, and l2 attribute information
diff --git a/changes/485.removal.rst b/changes/485.removal.rst
deleted file mode 100644
index 4cb8ace1..00000000
--- a/changes/485.removal.rst
+++ /dev/null
@@ -1 +0,0 @@
-Remove units from rad schema.
diff --git a/changes/487.misc.rst b/changes/487.misc.rst
deleted file mode 100644
index 4fac6d9b..00000000
--- a/changes/487.misc.rst
+++ /dev/null
@@ -1,2 +0,0 @@
-Update and add descriptions in the individual image metadata schema.
-Address merge issues created by the L1 and L2 metadata updates.
diff --git a/changes/498.misc.rst b/changes/498.misc.rst
deleted file mode 100644
index 41f18d59..00000000
--- a/changes/498.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Added alternate WFI aperture names to match both the SIAF and legacy names.
diff --git a/changes/499.feature.rst b/changes/499.feature.rst
deleted file mode 100644
index 3ae8cae3..00000000
--- a/changes/499.feature.rst
+++ /dev/null
@@ -1 +0,0 @@
-Remove units from Guidewindow schema.
diff --git a/changes/506.misc.rst b/changes/506.misc.rst
deleted file mode 100644
index 43640d72..00000000
--- a/changes/506.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Added CRDS and reference steps required lists.
diff --git a/changes/507.misc.rst b/changes/507.misc.rst
deleted file mode 100644
index 0ee8ed2d..00000000
--- a/changes/507.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Updated the ePSF schema.
diff --git a/changes/509.misc.rst b/changes/509.misc.rst
deleted file mode 100644
index e651658a..00000000
--- a/changes/509.misc.rst
+++ /dev/null
@@ -1 +0,0 @@
-pin `asdf<4.0`