diff --git a/CHANGELOG b/CHANGELOG
index 092efb4e..f1618ecb 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,4 +1,11 @@
-nnn v3.7 Sushi
+nnn v4.0 Sushi
+2021-04-13
+
+- show xterm title on option `-x`
+
+-------------------------------------------------------------------------------
+
+nnn v3.7
 2021-04-13
 
 - allow plugins to clear selection (#884, #889, #917)
diff --git a/misc/haiku/nnn.rdef b/misc/haiku/nnn.rdef
index f34be9a4..f0c246d5 100644
--- a/misc/haiku/nnn.rdef
+++ b/misc/haiku/nnn.rdef
@@ -8,11 +8,11 @@
 resource app_signature "application/x-vnd.Jarun-nnn";
 
 resource app_version {
-	major  = 3,
-	middle = 7,
+	major  = 4,
+	middle = 0,
 	minor  = 0,
 
-	variety = B_APPV_DEVELOPMENT,
+	variety = B_APPV_FINAL,
 	internal = 0,
 
 	short_info = "nnn",
diff --git a/src/nnn.c b/src/nnn.c
index cab29dee..16258ccc 100644
--- a/src/nnn.c
+++ b/src/nnn.c
@@ -126,7 +126,7 @@
 #endif
 
 /* Macro definitions */
-#define VERSION "3.7"
+#define VERSION "4.0"
 #define GENERAL_INFO "BSD 2-Clause\nhttps://github.com/jarun/nnn"
 
 #ifndef NOSSN