diff --git a/INSTALL b/INSTALL
index 749c0cf3d..8e832b9c4 100644
--- a/INSTALL
+++ b/INSTALL
@@ -68,8 +68,8 @@ to call
 in your build directory.
 
 
-Building Subsurface 4.5 under Linux
------------------------------------
+Building the development version of Subsurface under Linux
+----------------------------------------------------------
 
 On Fedora you need
 
diff --git a/README b/README
index 6398ce9eb..86c56cf46 100644
--- a/README
+++ b/README
@@ -1,4 +1,5 @@
-This is the README file for Subsurface 4.5.1
+This is the README file for the development version of Subsurface towards
+version 4.6
 
 Please check the ReleaseNotes.txt for details about new features and
 changes since Subsurface 4.5 (and earlier versions).
diff --git a/ReleaseNotes/ReleaseNotes.txt b/ReleaseNotes/ReleaseNotes.txt
index 6d7db64ad..7235545fd 100644
--- a/ReleaseNotes/ReleaseNotes.txt
+++ b/ReleaseNotes/ReleaseNotes.txt
@@ -1,8 +1,21 @@
-// _Subsurface_ 4.5.1 Release Notes
+// _Subsurface_ 4.61 Release Notes
 
-_Subsurface_ 4.5.1 - October 2015
+_Subsurface_ 4.6 - some day 2015
 ---------------------------------
 
+Some of the changes since _Subsurface_ 4.5.2
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+- major overhaul of the Subsurface-mobile UI
+- more fixes for oddities in the Uemis download
+
+Some of the changes since _Subsurface_ 4.5.1
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+- No changes in Subsurface (in fact the same sources), but libdivecomputer
+  was updated to support the latest firmware versions in the OSTC family
+  of dive computers (plus a few other minor changes)
+
 Some of the changes since _Subsurface_ 4.5.0
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~