diff --git a/CHANGES.txt b/CHANGES.txt
index bd9175a..e0061ec 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,3 +1,5 @@
+## Version 3.4.2 du 10/02/2016-11:45
+
 ## Version 3.4.1 du 10/02/2016-11:45
 
 a702b89 mergecsv: bug quand left ne contient qu'un seul champ vide
diff --git a/VERSION.txt b/VERSION.txt
index 47b322c..4d9d11c 100644
--- a/VERSION.txt
+++ b/VERSION.txt
@@ -1 +1 @@
-3.4.1
+3.4.2
diff --git a/lib/ulib/.ulibver b/lib/ulib/.ulibver
index 60e4ab9..62a7001 100644
--- a/lib/ulib/.ulibver
+++ b/lib/ulib/.ulibver
@@ -1 +1 @@
-011002000
+011002001