diff --git a/README.md b/README.md
index 01cd052df..a0e032853 100644
--- a/README.md
+++ b/README.md
@@ -50,4 +50,4 @@ DOI for the specific version you have used in any given study.
 
 ## Version number
 
-CONQUEST is now at version 1.3 (tag:v1.3)
+CONQUEST is now at version 1.4 (tag:v1.4)
diff --git a/docs/conf.py b/docs/conf.py
index b5b0f6847..e139dcfd4 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -63,9 +63,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = u'1.3'
+version = u'1.4'
 # The full version, including alpha/beta/rc tags.
-release = u'1.3'
+release = u'1.4'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/docs/input_tags.rst b/docs/input_tags.rst
index ef7217026..b3180c33c 100644
--- a/docs/input_tags.rst
+++ b/docs/input_tags.rst
@@ -692,8 +692,11 @@ Diag.PaddingHmatrix (*boolean*)
 
 Diag.BlockSizeR (*integer*)
     Block size for rows (See next).
+    From v1.4, the default value is 32 when Diag.PaddingHmatrix is true.
+    It is recommended to check the efficiency (CPU time) on your platform by changing this value.
+    Usually 20-40 is appropriate.
 
-    *default*: Determined automatically
+    *default*: 32 or Determined automatically (if Diag.PaddingHmatrix= true) 
 
 Diag.BlockSizeC (*integer*)
     R ... rows, C ... columns