diff --git a/configure.ac b/configure.ac
index 76f03ee..60a514c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1,7 +1,7 @@
 dnl Process this file with autoconf to produce a configure script.
 
 AC_INIT(encfs/encfs.h) dnl a source file from your sub dir
-AM_INIT_AUTOMAKE(encfs, 1.4.1.1) dnl searches for some needed programs
+AM_INIT_AUTOMAKE(encfs, 1.4.2) dnl searches for some needed programs
 
 dnl without this order in this file, automake will be confused!
 dnl
diff --git a/encfs/FileUtils.cpp b/encfs/FileUtils.cpp
index ba2be40..f73dbc3 100644
--- a/encfs/FileUtils.cpp
+++ b/encfs/FileUtils.cpp
@@ -62,7 +62,7 @@ using namespace rlog;
 using namespace std;
 using namespace gnu;
 
-static const int DefaultBlockSize = 512;
+static const int DefaultBlockSize = 1024;
 // The maximum length of text passwords.  If longer are needed,
 // use the extpass option, as extpass can return arbitrary length binary data.
 static const int MaxPassBuf = 512;
@@ -76,7 +76,8 @@ static const char ENCFS_ENV_STDERR[] = "encfs_stderr";
 
 //static int V5SubVersion = 20040518;
 //static int V5SubVersion = 20040621; // add external IV chaining
-static int V5SubVersion = 20040813; // fix MACFileIO block size issues
+//static int V5SubVersion = 20040813; // fix MACFileIO block size issues
+static int V5SubVersion = 20080411; // add zero-block pass-through
 static int V5SubVersionDefault = 0;
 
 struct ConfigInfo
diff --git a/encfs/Makefile.am b/encfs/Makefile.am
index a072408..8de5a44 100644
--- a/encfs/Makefile.am
+++ b/encfs/Makefile.am
@@ -42,7 +42,7 @@ endif
 #       :     :   0       => no new interfaces, but breaks old apps
 #       :  +1 :           => internal changes, nothing breaks
 #
-libencfs_la_LDFLAGS = -version-info 3:1:0
+libencfs_la_LDFLAGS = -version-info 4:0:0
 libencfs_la_LIBADD = -lrlog
 
 EXTRASRC = ../intl/autosprintf.cpp