diff --git a/Changelog.yaml b/Changelog.yaml
index afaf37d579..145deb0287 100644
--- a/Changelog.yaml
+++ b/Changelog.yaml
@@ -5,20 +5,47 @@
 # for important features/bug fixes.
 # Also, each release can have new and improved recipes.
 
-# - version: 4.?.0
-#   date: 2020-??-??
-#
-#   new features:
-#     - title:
-#
-#   bug fixes:
-#     - title:
-#
-#   improved recipes:
-#     -
-#
-#   new recipes:
-#     - title:
+- version: 4.23.0
+  date: 2020-08-21
+
+  new features:
+    - title: "Kobo driver: Add support for new firmware. Also add recognition of 'Kobo Plus' subscription books"
+
+    - title: "Edit book: Allow customizing the base background/foreground and link colors for the preview window."
+      tickets: [1889925]
+
+    - title: "Quickview panel: Add actions to the context menu to search for book in library, open in viewer, etc."
+      tickets: [1891765]
+
+    - title: "Allow forcing calibre to remember the column width for the On device column by right clicking the header of the column"
+
+    - title: "Template language: Add functions to perform math operations to convert fractional numbers to integers"
+
+  bug fixes:
+    - title: "Content server: Fix Esc key not working in several views."
+      tickets: [1849958]
+
+    - title: "Fix unable to delete default value for custom columns of boolean type, once set"
+      tickets: [1889973]
+
+    - title: "EPUB Output: When splitting dont consider files with only a single character empty"
+
+    - title: "Comments editor: Fix syntax coloring for HTML view in dark mode"
+
+    - title: "Book list: When a series column is not wide enough, elide text in the middle so that the series number is visible"
+
+  improved recipes:
+    - El Diplo
+    - calibre Blog
+    - ESPN
+    - LA Times
+    - Winnipeg Free Press
+    - Popular Science
+    - Science News Recent Issues
+
+  new recipes:
+    - title: linuxnews.de and t3n.de
+      author: Volker Heggemann
 
 - version: 4.22.0
   date: 2020-07-31
diff --git a/manual/conversion.rst b/manual/conversion.rst
index 776cb38c61..db78fc6287 100644
--- a/manual/conversion.rst
+++ b/manual/conversion.rst
@@ -645,7 +645,7 @@ and then convert the resulting HTML file with calibre. When saving as
 HTML, be sure to use the "Save as Web Page, Filtered" option as this will
 produce clean HTML that will convert well. Note that Word produces really messy
 HTML, converting it can take a long time, so be patient. If you have a newer
-version of Word available, you can directly save it as docx as well.
+version of Word available, you can directly save it as .docx as well.
 
 Another alternative is to use the free OpenOffice. Open your .doc file in
 OpenOffice and save it in OpenOffice's format .odt. calibre can directly convert
diff --git a/src/calibre/constants.py b/src/calibre/constants.py
index 6a60c3d501..f4292c7e9e 100644
--- a/src/calibre/constants.py
+++ b/src/calibre/constants.py
@@ -6,7 +6,7 @@ from polyglot.builtins import map, unicode_type, environ_item, hasenv, getenv, a
 import sys, locale, codecs, os, importlib, collections
 
 __appname__   = 'calibre'
-numeric_version = (4, 22, 0)
+numeric_version = (4, 23, 0)
 __version__   = '.'.join(map(unicode_type, numeric_version))
 git_version   = None
 __author__    = "Kovid Goyal <kovid@kovidgoyal.net>"