diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000000..286342c1cc
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,8 @@
+# no installation...
+before_script: autoconf
+script: "./configure && make all test"
+
+branches:
+  only:
+    - trunk
+    - ruby_1_9_3
diff --git a/ChangeLog b/ChangeLog
index 4c30ee8113..1a0faf7714 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+Fri Mar  2 22:09:03 2012  Hiroshi Nakamura  <nahi@ruby-lang.org>
+
+	* .travis.yml: Backport TravisCI configuration from trunk.
+
 Thu Mar  1 18:39:44 2012  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* file.c (rb_file_join): honor input encodings than ASCII-8BIT.
diff --git a/version.h b/version.h
index 8341716000..e7b420bcec 100644
--- a/version.h
+++ b/version.h
@@ -1,10 +1,10 @@
 #define RUBY_VERSION "1.9.3"
-#define RUBY_PATCHLEVEL 154
+#define RUBY_PATCHLEVEL 155
 
-#define RUBY_RELEASE_DATE "2012-03-01"
+#define RUBY_RELEASE_DATE "2012-03-02"
 #define RUBY_RELEASE_YEAR 2012
 #define RUBY_RELEASE_MONTH 3
-#define RUBY_RELEASE_DAY 1
+#define RUBY_RELEASE_DAY 2
 
 #include "ruby/version.h"