diff --git a/NEWS.md b/NEWS.md
index 3c274dc8..35b0c70e 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,3 +1,11 @@
+4.2.3 2020-03-16 post ides-of-march
+===================================
+
+* Add Python versions: 3.7.7, 3.8.2, and 3.9.0alpha1,
+* Create a class for "STORE" instructions
+* facilitate code type freezing (PR #57)
+* Warn about cross-decompilation problems for byte types
+
 4.2.2 2019-12-24 christmas + hannukah
 =====================================
 
diff --git a/__pkginfo__.py b/__pkginfo__.py
index 8f0066b8..4e579694 100644
--- a/__pkginfo__.py
+++ b/__pkginfo__.py
@@ -9,7 +9,7 @@
 
 # Things that change more often go here.
 copyright = """
-Copyright (C) 2015-2019 Rocky Bernstein <rb@dustyfeet.com>.
+Copyright (C) 2015-2020 Rocky Bernstein <rb@dustyfeet.com>.
 """
 
 classifiers = [
diff --git a/admin-tools/README.md b/admin-tools/README.md
new file mode 100644
index 00000000..313c90d2
--- /dev/null
+++ b/admin-tools/README.md
@@ -0,0 +1,12 @@
+This directory contains administrative tools for testing and making packages.
+
+Since this project uses python over a wide variety of release, some versions
+of projects that should be used for specific Python versions
+
+for 3.2.6:
+   pytest==2.9.2
+
+for 3.1.5
+   pytset==2.1.0
+   py=1.8.0 and comment out line 10 of _builtin.py # callable = callable
+   six==1.10.0
diff --git a/admin-tools/how-to-make-a-release.md b/admin-tools/how-to-make-a-release.md
index 046c1016..2e53a012 100644
--- a/admin-tools/how-to-make-a-release.md
+++ b/admin-tools/how-to-make-a-release.md
@@ -24,7 +24,7 @@
 # Change version in xdis/version.py.
 
     $ emacs xdis/version.py
-    $ source xdis/version.pyw
+    $ source xdis/version.py
     $ echo $VERSION
     $ git commit -m"Get ready for release $VERSION" .
 
@@ -63,7 +63,7 @@
 # Make packages and tag
 
     $ . ./admin-tools/make-dist-older.sh
-	$ pyenv local 3.8.1
+	$ pyenv local 3.8.2
 	$ twine check dist/xdis-$VERSION*
     $ git tag release-python-2.4-$VERSION
     $ . ./admin-tools/make-dist-newer.sh
diff --git a/admin-tools/pyenv-newer-versions b/admin-tools/pyenv-newer-versions
index 8e8fda12..d48a318a 100644
--- a/admin-tools/pyenv-newer-versions
+++ b/admin-tools/pyenv-newer-versions
@@ -5,4 +5,4 @@ if [[ $0 == ${BASH_SOURCE[0]} ]] ; then
     echo "This script should be *sourced* rather than run directly through bash"
     exit 1
 fi
-export PYVERSIONS='3.5.9 3.6.10 2.6.9 3.3.7 2.7.17 3.2.6 3.1.5 3.4.10 3.7.6 3.8.1'
+export PYVERSIONS='3.5.9 3.6.10 2.6.9 3.3.7 2.7.17 3.2.6 3.1.5 3.4.10 3.7.7 3.8.2'
diff --git a/xdis/code.py b/xdis/code.py
index 8fa91614..f26162a1 100644
--- a/xdis/code.py
+++ b/xdis/code.py
@@ -1,4 +1,4 @@
-# (C) Copyright 2017-2019 by Rocky Bernstein
+# (C) Copyright 2017-2020 by Rocky Bernstein
 #
 #  This program is free software; you can redistribute it and/or
 #  modify it under the terms of the GNU General Public License
diff --git a/xdis/magics.py b/xdis/magics.py
index f604583f..138fb015 100755
--- a/xdis/magics.py
+++ b/xdis/magics.py
@@ -1,4 +1,4 @@
-# (C) Copyright 2018-2019 by Rocky Bernstein
+# (C) Copyright 2018-2020 by Rocky Bernstein
 #
 #  This program is free software; you can redistribute it and/or
 #  modify it under the terms of the GNU General Public License
@@ -342,7 +342,7 @@ def add_canonic_versions(versions, canonic):
 add_canonic_versions("3.6.9pypy", "3.6pypy")
 add_canonic_versions("2.7.8Pyston", "2.7.7Pyston")
 add_canonic_versions("3.7.0alpha3", "3.7.0alpha3")
-add_canonic_versions("3.7 3.7.0beta5 3.7.1 3.7.2 3.7.3 3.7.4 3.7.5 3.7.6", "3.7.0")
+add_canonic_versions("3.7 3.7.0beta5 3.7.1 3.7.2 3.7.3 3.7.4 3.7.5 3.7.6 3.7.7", "3.7.0")
 add_canonic_versions("3.8.0alpha0 3.8.0alpha3 3.8.0a0", "3.8.0a3+")
 add_canonic_versions("3.8.0 3.8.1 3.8.2 3.8 3.8.0candidate1", "3.8.0rc1+")
 add_canonic_versions("3.9 3.9.0 3.9.0a1+ 3.9.0a2+ 3.9.0alpha1 3.9.0alpha2", "3.9.0alpha1")
diff --git a/xdis/version.py b/xdis/version.py
index c612904d..209d309c 100644
--- a/xdis/version.py
+++ b/xdis/version.py
@@ -1,3 +1,3 @@
 # This file is suitable for sourcing inside bash as
 # well as importing into Python
-VERSION='4.2.2'
+VERSION='4.2.3'