--- a/CLOBBER
+++ b/CLOBBER
@@ -17,9 +17,9 @@
 #
 # Modifying this file will now automatically clobber the buildbot machines \o/
 #
 
 # Are you updating CLOBBER because you think it's needed for your WebIDL
 # changes to stick? As of bug 928195, this shouldn't be necessary! Please
 # don't change CLOBBER for WebIDL changes any more.
 
-Bug 1297097 - Remove preference "layout.css.vertical-text.enabled" modifies nsCSSPropList.h. Might need a clobber due to bug 1276197.
+Merge day clobber
\ No newline at end of file

--- a/browser/config/version.txt
+++ b/browser/config/version.txt
@@ -1,1 +1,1 @@
-51.0a1
+52.0a1

--- a/browser/config/version_display.txt
+++ b/browser/config/version_display.txt
@@ -1,1 +1,1 @@
-51.0a1
+52.0a1

--- a/config/milestone.txt
+++ b/config/milestone.txt
@@ -5,9 +5,9 @@
 #    x.x.x.x
 #    x.x.x+
 #
 # Referenced by milestone.py.
 # Hopefully I'll be able to automate replacement of *all*
 # hardcoded milestones in the tree from these two files.
 #--------------------------------------------------------
 
-51.0a1
+52.0a1

--- a/services/sync/moz.build
+++ b/services/sync/moz.build
@@ -41,17 +41,17 @@ EXTRA_JS_MODULES['services-sync'] += [
     'modules/util.js',
 ]
 
 EXTRA_PP_JS_MODULES['services-sync'] += [
     'modules/constants.js',
 ]
 
 # Definitions used by constants.js
-DEFINES['weave_version'] = '1.53.0'
+DEFINES['weave_version'] = '1.54.0'
 DEFINES['weave_id'] = '{340c2bbc-ce74-4362-90b5-7c26312808ef}'
 
 EXTRA_JS_MODULES['services-sync'].engines += [
     'modules/engines/addons.js',
     'modules/engines/bookmarks.js',
     'modules/engines/clients.js',
     'modules/engines/forms.js',
     'modules/engines/history.js',

--- a/xpcom/components/Module.h
+++ b/xpcom/components/Module.h
@@ -17,17 +17,17 @@ namespace mozilla {
 /**
  * A module implements one or more XPCOM components. This structure is used
  * for both binary and script modules, but the registration members
  * (cids/contractids/categoryentries) are unused for modules which are loaded
  * via a module loader.
  */
 struct Module
 {
-  static const unsigned int kVersion = 51;
+  static const unsigned int kVersion = 52;
 
   struct CIDEntry;
 
   typedef already_AddRefed<nsIFactory> (*GetFactoryProcPtr)(
     const Module& module, const CIDEntry& entry);
 
   typedef nsresult (*ConstructorProcPtr)(nsISupports* aOuter,
                                          const nsIID& aIID,