Index: src/OFArray.h
==================================================================
--- src/OFArray.h
+++ src/OFArray.h
@@ -120,10 +120,13 @@
  */
 - (id*)cArray;
 
 /**
  * Returns a specific object of the array.
+ *
+ * The returned object is <i>not</i> retained and autoreleased for performance
+ * reasons!
  *
  * \param index The number of the object to return
  * \return The specified object of the OFArray
  */
 - (id)objectAtIndex: (size_t)index;
@@ -146,15 +149,25 @@
  *	   the specified object
  */
 - (size_t)indexOfObjectIdenticalTo: (OFObject*)obj;
 
 /**
+ * Returns the first object of the array or nil.
+ *
+ * The returned object is <i>not</i> retained and autoreleased for performance
+ * reasons!
+ *
  * \return The first object of the array or nil
  */
 - (id)firstObject;
 
 /**
+ * Returns the last object of the array or nil.
+ *
+ * The returned object is <i>not</i> retained and autoreleased for performance
+ * reasons!
+ *
  * \return The last object of the array or nil
  */
 - (id)lastObject;
 
 /**

Index: src/OFDictionary.h
==================================================================
--- src/OFDictionary.h
+++ src/OFDictionary.h
@@ -140,10 +140,15 @@
  */
 - initWithKey: (OFObject <OFCopying>*)first
       argList: (va_list)args;
 
 /**
+ * Returns the object for the given key or nil if the key was not found.
+ *
+ * The returned object is <i>not</i> retained and autoreleased for performance
+ * reasons!
+ *
  * \param key The key whose object should be returned
  * \return The object for the given key or nil if the key was not found
  */
 - (id)objectForKey: (OFObject <OFCopying>*)key;
 

Index: src/OFThread.h
==================================================================
--- src/OFThread.h
+++ src/OFThread.h
@@ -90,10 +90,13 @@
 + (id)setObject: (OFObject*)obj
       forTLSKey: (OFTLSKey*)key;
 
 /**
  * Returns the object for the specified Thread Local Storage key.
+ *
+ * The returned object is <i>not</i> retained and autoreleased for performance
+ * reasons!
  *
  * \param key The Thread Local Storage key
  */
 + (id)objectForTLSKey: (OFTLSKey*)key;
 

Index: src/OFThread.m
==================================================================
--- src/OFThread.m
+++ src/OFThread.m
@@ -80,11 +80,11 @@
 	return [old autorelease];
 }
 
 + (id)objectForTLSKey: (OFTLSKey*)key
 {
-	return [[of_tlskey_get(key->key) retain] autorelease];
+	return of_tlskey_get(key->key);
 }
 
 + (OFThread*)currentThread
 {
 	return of_tlskey_get(thread_self);