diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5c17e6c7..0966d074 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,13 @@
 # Changelog
 
-## Critical bugix release 1.4.1
+## In progress log for 1.4.2-RC1
+
+* ENHANCEMENT: Add a Content Security Policy preventing contents of a page from connecting to online resourcs
+* FIX: Crash in UWP app after updating a ZIM archive
+* FIX: Improve handover from local code to PWA code to prevent rogue error message
+* FIX: Improve page composition timing for non-MS browsers
+
+## Release 1.4.1
 
 * FIX: Critical bug where article is not unhidden in time on slow systems in jQuery mode
 * FIX: Issues with dark mode in Gutenberg ZIMs using SW mode
diff --git a/pwabuilder-sw.js b/pwabuilder-sw.js
index 01d16c05..e411f33b 100644
--- a/pwabuilder-sw.js
+++ b/pwabuilder-sw.js
@@ -4,7 +4,7 @@
 // App version number - ENSURE IT MATCHES VALUE IN init.js
 // DEV: Changing this will cause the browser to recognize that the Service Worker has changed, and it will download and
 // install a new copy
-const appVersion = '1.4.1';
+const appVersion = '1.4.2-RC1';
 
 // Kiwix ZIM Archive Download Server in regex form
 // DEV: The server URL is defined in init.js, but is not available to us in SW
diff --git a/www/js/init.js b/www/js/init.js
index 20741ac1..6b710e3b 100644
--- a/www/js/init.js
+++ b/www/js/init.js
@@ -49,7 +49,7 @@ var params = {};
  */
 var appstate = {};
 /******** UPDATE VERSION IN pwabuilder-sw.js TO MATCH VERSION AND CHECK PWASERVER BELOW!!!!!!! *******/
-params['version'] = "1.4.1"; //DEV: Manually update this version when there is a new release: it is compared to the Settings Store "version" in order to show first-time info, and the cookie is updated in app.js
+params['version'] = "1.4.2-RC1"; //DEV: Manually update this version when there is a new release: it is compared to the Settings Store "version" in order to show first-time info, and the cookie is updated in app.js
 /******* UPDATE THIS ^^^^^^ IN service worker AND PWA-SERVER BELOW !! ********************/
 params['packagedFile'] = getSetting('packagedFile') || "wikipedia_en_100_maxi_2021-05.zim"; //For packaged Kiwix JS (e.g. with Wikivoyage file), set this to the filename (for split files, give the first chunk *.zimaa) and place file(s) in default storage
 params['archivePath'] = "archives"; //The directory containing the packaged archive(s) (relative to app's root directory)