diff --git a/Readme.md b/Readme.md
index f98c904..703747c 100644
--- a/Readme.md
+++ b/Readme.md
@@ -71,6 +71,9 @@ make install
 where `<prefix>` should be replaced by the desired prefix for LatAnalyze installation, and `<n>` is the number of parallel build processes (typically twice your number of cores).
 
 ## History
+#### v3.5.1
+Various fixes and cleaning of outdated code.
+
 #### v3.5
 Additions:
 * 'Impulse' & line type plots
diff --git a/configure.ac b/configure.ac
index 69eda63..ccca17e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 
 # Initialization
 AC_PREREQ([2.63])
-AC_INIT([LatAnalyze],[3.5-dev],[antonin.portelli@me.com],[LatAnalyze])
+AC_INIT([LatAnalyze],[3.5.1],[antonin.portelli@me.com],[LatAnalyze])
 AC_CONFIG_AUX_DIR([.buildutils])
 AC_CONFIG_SRCDIR([lib/Global.cpp])
 AC_CONFIG_SRCDIR([utils/sample_read.cpp])