diff --git a/CHANGES.txt b/CHANGES.txt
index d56c04dc..4207aef3 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,6 +1,24 @@
 Apptools CHANGELOG
 ==================
 
+Version 5.1.0
+~~~~~~~~~~~~~
+
+Released : 2021-01-13
+
+This is a minor release in which the modules in the apptools.undo subpackage are
+modified to import from pyface.undo rather than redefining the classes.  This
+should help ease the transition to using pyface.undo in place of the now
+deprecated apptool.undo.
+
+Deprecations
+------------
+* Import from pyface.undo.* instead of redefining classes in apptools.undo.* (#272)
+
+Documentation changes
+---------------------
+* Add module docstrings to the various api modules in apptools subpackages (#274)
+
 Version 5.0.0
 ~~~~~~~~~~~~~
 
diff --git a/docs/releases/upcoming/116.bugfix.rst b/docs/releases/upcoming/116.bugfix.rst
deleted file mode 100644
index f1a3b5f7..00000000
--- a/docs/releases/upcoming/116.bugfix.rst
+++ /dev/null
@@ -1 +0,0 @@
-Fix SyntaxWarning in persistence.file_path (#116)
\ No newline at end of file
diff --git a/docs/releases/upcoming/172.removal.rst b/docs/releases/upcoming/172.removal.rst
deleted file mode 100644
index 55d27c85..00000000
--- a/docs/releases/upcoming/172.removal.rst
+++ /dev/null
@@ -1 +0,0 @@
-Remove ``appscripting`` subpackage (#172)
\ No newline at end of file
diff --git a/docs/releases/upcoming/173.removal.rst b/docs/releases/upcoming/173.removal.rst
deleted file mode 100644
index ad09cb6d..00000000
--- a/docs/releases/upcoming/173.removal.rst
+++ /dev/null
@@ -1 +0,0 @@
-Remove ``template`` subpackage (#173)
\ No newline at end of file
diff --git a/docs/releases/upcoming/175.removal.rst b/docs/releases/upcoming/175.removal.rst
deleted file mode 100644
index 81677f17..00000000
--- a/docs/releases/upcoming/175.removal.rst
+++ /dev/null
@@ -1 +0,0 @@
-Remove ``permission`` subpackage (#175)
\ No newline at end of file
diff --git a/docs/releases/upcoming/184.removal.rst b/docs/releases/upcoming/184.removal.rst
deleted file mode 100644
index 8d0deb50..00000000
--- a/docs/releases/upcoming/184.removal.rst
+++ /dev/null
@@ -1 +0,0 @@
-Remove ``lru_cache`` subpackage (#184)
\ No newline at end of file
diff --git a/docs/releases/upcoming/190.removal.rst b/docs/releases/upcoming/190.removal.rst
deleted file mode 100644
index c0247c4d..00000000
--- a/docs/releases/upcoming/190.removal.rst
+++ /dev/null
@@ -1 +0,0 @@
-Remove support for Python 2.7 and 3.5 (#190)
\ No newline at end of file
diff --git a/docs/releases/upcoming/196.bugfix.rst b/docs/releases/upcoming/196.bugfix.rst
deleted file mode 100644
index 0c12dfeb..00000000
--- a/docs/releases/upcoming/196.bugfix.rst
+++ /dev/null
@@ -1 +0,0 @@
-Fix container items change event being saved in preferences (#196)
\ No newline at end of file
diff --git a/docs/releases/upcoming/198.doc.rst b/docs/releases/upcoming/198.doc.rst
deleted file mode 100644
index ce7d823d..00000000
--- a/docs/releases/upcoming/198.doc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Update documentation for Preferences (#198)
\ No newline at end of file
diff --git a/docs/releases/upcoming/199.removal.rst b/docs/releases/upcoming/199.removal.rst
deleted file mode 100644
index b556dc7b..00000000
--- a/docs/releases/upcoming/199.removal.rst
+++ /dev/null
@@ -1,4 +0,0 @@
-remove the ``apptools.sweet_pickle`` subpackage.  Note that users of
-sweet_pickle can in some cases transition to using ``apptools.persistence`` and
-pickle from the python standard library (see changes made in this PR to
-``apptools.naming`` for more info) (#199)
\ No newline at end of file
diff --git a/docs/releases/upcoming/210.test.rst b/docs/releases/upcoming/210.test.rst
deleted file mode 100644
index 867cb211..00000000
--- a/docs/releases/upcoming/210.test.rst
+++ /dev/null
@@ -1 +0,0 @@
-Fix AttributeError on Python 3.9 due to usage of ``base64.decodestring`` in tests (#210)
\ No newline at end of file
diff --git a/docs/releases/upcoming/215.removal.rst b/docs/releases/upcoming/215.removal.rst
deleted file mode 100644
index 86cd1386..00000000
--- a/docs/releases/upcoming/215.removal.rst
+++ /dev/null
@@ -1 +0,0 @@
-Remove ``help`` subpackage (#215)
\ No newline at end of file
diff --git a/docs/releases/upcoming/216.removal.rst b/docs/releases/upcoming/216.removal.rst
deleted file mode 100644
index 19b0d26a..00000000
--- a/docs/releases/upcoming/216.removal.rst
+++ /dev/null
@@ -1 +0,0 @@
-remove NullHandler from ``apptools.logger`` (#216)
\ No newline at end of file
diff --git a/docs/releases/upcoming/217.removal.rst b/docs/releases/upcoming/217.removal.rst
deleted file mode 100644
index 273174c7..00000000
--- a/docs/releases/upcoming/217.removal.rst
+++ /dev/null
@@ -1 +0,0 @@
-Remove ``apptools.logger.filtering_handler`` and ``apptools.logger.util`` submodules (#217)
\ No newline at end of file
diff --git a/docs/releases/upcoming/218.removal.rst b/docs/releases/upcoming/218.removal.rst
deleted file mode 100644
index 070bf361..00000000
--- a/docs/releases/upcoming/218.removal.rst
+++ /dev/null
@@ -1 +0,0 @@
-Remove deprecated create_log_file_handler function (#218)
\ No newline at end of file
diff --git a/docs/releases/upcoming/219.removal.rst b/docs/releases/upcoming/219.removal.rst
deleted file mode 100644
index 56c4e0a0..00000000
--- a/docs/releases/upcoming/219.removal.rst
+++ /dev/null
@@ -1 +0,0 @@
-Remove use of ``apptools.type_manage`r`` from ``apptools.naming``.  Then, remove ``apptools.type_manager`` entirely.  Finally, remove ``apptools.naming.adapter``. (#219)
\ No newline at end of file
diff --git a/docs/releases/upcoming/220.removal.rst b/docs/releases/upcoming/220.removal.rst
deleted file mode 100644
index 3ff4e85a..00000000
--- a/docs/releases/upcoming/220.removal.rst
+++ /dev/null
@@ -1 +0,0 @@
-Remove ``apptools.persistence.spickle.py`` submodule (#220)
\ No newline at end of file
diff --git a/docs/releases/upcoming/221.doc.rst b/docs/releases/upcoming/221.doc.rst
deleted file mode 100644
index 0ba971c9..00000000
--- a/docs/releases/upcoming/221.doc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Add a brief section to documentation for ``apptools.naming`` (#221)
\ No newline at end of file
diff --git a/docs/releases/upcoming/226.bugfix.rst b/docs/releases/upcoming/226.bugfix.rst
deleted file mode 100644
index 2d23f3a5..00000000
--- a/docs/releases/upcoming/226.bugfix.rst
+++ /dev/null
@@ -1 +0,0 @@
-Fix synchronizing preference trait with name *_items (#226)
\ No newline at end of file
diff --git a/docs/releases/upcoming/233.removal.rst b/docs/releases/upcoming/233.removal.rst
deleted file mode 100644
index 89d0d8c4..00000000
--- a/docs/releases/upcoming/233.removal.rst
+++ /dev/null
@@ -1 +0,0 @@
-Remove ``apptools.naming.ui`` sub package (#233)
\ No newline at end of file
diff --git a/docs/releases/upcoming/237.doc.rst b/docs/releases/upcoming/237.doc.rst
deleted file mode 100644
index 557595c8..00000000
--- a/docs/releases/upcoming/237.doc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Document the ``apptools.io`` and ``apptools.io.h5`` sub packages (#237)
\ No newline at end of file
diff --git a/docs/releases/upcoming/248.doc.rst b/docs/releases/upcoming/248.doc.rst
deleted file mode 100644
index 6c0255d3..00000000
--- a/docs/releases/upcoming/248.doc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Fix a few broken links in the documentation (#248)
\ No newline at end of file
diff --git a/docs/releases/upcoming/250.deprecation.rst b/docs/releases/upcoming/250.deprecation.rst
deleted file mode 100644
index 4a8e2b8a..00000000
--- a/docs/releases/upcoming/250.deprecation.rst
+++ /dev/null
@@ -1 +0,0 @@
-Deprecate apptools.undo subpackage (undo was moved to pyface) (#250)
diff --git a/docs/releases/upcoming/257.build.rst b/docs/releases/upcoming/257.build.rst
deleted file mode 100644
index 0f855523..00000000
--- a/docs/releases/upcoming/257.build.rst
+++ /dev/null
@@ -1 +0,0 @@
-Add extras_require to setup.py for optional dependencies (#257)
\ No newline at end of file
diff --git a/docs/releases/upcoming/260.test.rst b/docs/releases/upcoming/260.test.rst
deleted file mode 100644
index e4a04c27..00000000
--- a/docs/releases/upcoming/260.test.rst
+++ /dev/null
@@ -1 +0,0 @@
-Make optional dependencies optional for tests (#260)
\ No newline at end of file
diff --git a/docs/releases/upcoming/272.deprecation.rst b/docs/releases/upcoming/272.deprecation.rst
deleted file mode 100644
index 1b1e2d4a..00000000
--- a/docs/releases/upcoming/272.deprecation.rst
+++ /dev/null
@@ -1 +0,0 @@
-Import from pyface.undo.* instead of redefining classes in apptools.undo.* (#272)
\ No newline at end of file
diff --git a/docs/releases/upcoming/274.doc.rst b/docs/releases/upcoming/274.doc.rst
deleted file mode 100644
index 0a93e5b0..00000000
--- a/docs/releases/upcoming/274.doc.rst
+++ /dev/null
@@ -1 +0,0 @@
-Add module docstrings to the various api modules in apptools subpackages (#274)
\ No newline at end of file