diff --git a/CHANGELOG b/CHANGELOG
index 7b2da29..8b18076 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,5 +1,11 @@
 # MAJOR.MINOR.ADJUSTMENTS
 
+1.5.1
+    New queue benchmark
+    Added sac/queue.h
+    Added utl/timer.h
+    Fixing descriptions other minor fixes
+
 1.5.0
     Changed tests compilation and execution to a single Makefile
     Changed project structure
diff --git a/TODO b/TODO
index 901135a..92002be 100644
--- a/TODO
+++ b/TODO
@@ -10,6 +10,7 @@ TODO
 [ ] Iterator based functions (like C++ collections)
 [ ] Add Stack Allocated Collections
 [ ] Finish all Dev Collections
+[ ] ToString method to all Collections
 
 
 MAYBE
diff --git a/src/macro_collections.h b/src/macro_collections.h
index a74223e..cb797f1 100644
--- a/src/macro_collections.h
+++ b/src/macro_collections.h
@@ -11,9 +11,6 @@
 #ifndef CMC_MACRO_COLLECTIONS
 #define CMC_MACRO_COLLECTIONS
 
-#include <stdlib.h>
-#include <stdbool.h>
-
 #define CONCATH_(C) C##_WRAPGEN_HEADER
 #define CONCATC_(C) C##_WRAPGEN_SOURCE
 
@@ -32,22 +29,24 @@
     CONCATC(C)                                                \
     (PFX, SNAME, FMOD, K, V)
 
-#include "cmc/list.h"
-#include "cmc/linkedlist.h"
-#include "cmc/stack.h"
-#include "cmc/queue.h"
 #include "cmc/deque.h"
-#include "cmc/heap.h"
-#include "cmc/treeset.h"
-#include "cmc/treemap.h"
-#include "cmc/hashset.h"
 #include "cmc/hashmap.h"
+#include "cmc/hashset.h"
+#include "cmc/heap.h"
+#include "cmc/linkedlist.h"
+#include "cmc/list.h"
+#include "cmc/queue.h"
+#include "cmc/stack.h"
+#include "cmc/treemap.h"
+#include "cmc/treeset.h"
 
 #include "ext/linkedqueue.h"
 
+#include "sac/queue.h"
 #include "sac/stack.h"
 
 #include "utl/foreach.h"
 #include "utl/log.h"
+#include "utl/timer.h"
 
-#endif /* CMC_MACRO_COLLECTIONS */
\ No newline at end of file
+#endif /* CMC_MACRO_COLLECTIONS */
diff --git a/src/utl/foreach.h b/src/utl/foreach.h
index 0f582b9..4d60514 100644
--- a/src/utl/foreach.h
+++ b/src/utl/foreach.h
@@ -1,5 +1,5 @@
 /**
- * @file for_each.h
+ * for_each.h
  *
  * Creation Date: 25/02/2019
  *
@@ -8,6 +8,12 @@
  *
  */
 
+/**
+ * ForEach utility
+ *
+ * Read Documentation.md for more information
+ */
+
 #ifndef CMC_FOR_EACH
 #define CMC_FOR_EACH
 
diff --git a/src/utl/log.h b/src/utl/log.h
index d21080e..5b96bf2 100644
--- a/src/utl/log.h
+++ b/src/utl/log.h
@@ -8,9 +8,11 @@
  *
  */
 
-/* Simple logging macros */
-/* You can toggle colors defining the macro CMC_LOG_COLOR but be sure that */
-/* your terminal supports ANSI color escape codes */
+/**
+ * Simple logging macros
+ * You can toggle colors defining the macro CMC_LOG_COLOR but be sure that
+ * your terminal supports ANSI color escape codes
+ */
 
 /**
  * What each error code means