diff --git a/NEWS.md b/NEWS.md
index 66dc2a2f..1cad313f 100644
--- a/NEWS.md
+++ b/NEWS.md
@@ -1,5 +1,12 @@
 # Release news
 
+## Version 4.2.2 - 27th June 2014
+
+* Fixes for a few stratum-related security vulnerabilities (reported by
+  _Mick Ayzenberg_ of DejaVu Security).
+* Found blocks calculation fix (by _troky_).
+
+
 ## Version 4.2.1 - 22nd May 2014
 
 * Fixed MSVS building, tested with MSVC++ 2010 and 2013 (by _troky_).
diff --git a/configure.ac b/configure.ac
index 6e4e8ede..ba9ce606 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 ##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##
 m4_define([v_maj], [4])
 m4_define([v_min], [2])
-m4_define([v_mic], [1])
+m4_define([v_mic], [2])
 ##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##--##
 m4_define([v_ver], [v_maj.v_min.v_mic])
 m4_define([lt_rev], m4_eval(v_maj + v_min))
diff --git a/winbuild/dist/include/config.h b/winbuild/dist/include/config.h
index 9a224abd..dd4d2efa 100644
--- a/winbuild/dist/include/config.h
+++ b/winbuild/dist/include/config.h
@@ -68,11 +68,11 @@
 
 #endif
 
-#define VERSION "v4.2.1"
+#define VERSION "v4.2.2"
 #define PACKAGE_NAME "sgminer"
 #define PACKAGE_TARNAME "sgminer"
-#define PACKAGE_VERSION "4.2.1"
-#define PACKAGE_STRING "sgminer 4.2.1"
+#define PACKAGE_VERSION "4.2.2"
+#define PACKAGE_STRING "sgminer 4.2.2"
 #define PACKAGE "sgminer"
 
 #define SGMINER_PREFIX ""