Index: src/OFMutableArray.m
==================================================================
--- src/OFMutableArray.m
+++ src/OFMutableArray.m
@@ -222,11 +222,10 @@
 }
 
 #ifdef OF_HAVE_BLOCKS
 - (void)enumerateObjectsUsingBlock: (of_array_enumeration_block_t)block
 {
-	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
 	id *cArray = [array cArray];
 	size_t i, count = [array count];
 	BOOL stop = NO;
 	unsigned long mutations2 = mutations;
 
@@ -235,19 +234,15 @@
 			@throw [OFEnumerationMutationException
 			    newWithClass: isa
 				  object: self];
 
 		block(cArray[i], i, &stop);
-		[pool releaseObjects];
 	}
-
-	[pool release];
 }
 
 - (void)replaceObjectsUsingBlock: (of_array_replace_block_t)block
 {
-	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
 	id *cArray = [array cArray];
 	size_t i, count = [array count];
 	BOOL stop = NO;
 	unsigned long mutations2 = mutations;
 
@@ -266,13 +261,9 @@
 							       selector: _cmd];
 
 		[newObject retain];
 		[cArray[i] release];
 		cArray[i] = newObject;
-
-		[pool releaseObjects];
 	}
-
-	[pool release];
 }
 #endif
 @end

Index: src/OFMutableDictionary.m
==================================================================
--- src/OFMutableDictionary.m
+++ src/OFMutableDictionary.m
@@ -277,11 +277,10 @@
 
 #ifdef OF_HAVE_BLOCKS
 - (void)enumerateKeysAndObjectsUsingBlock:
     (of_dictionary_enumeration_block_t)block
 {
-	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
 	size_t i;
 	BOOL stop = NO;
 	unsigned long mutations2 = mutations;
 
 	for (i = 0; i < size && !stop; i++) {
@@ -288,22 +287,17 @@
 		if (mutations != mutations2)
 			@throw [OFEnumerationMutationException
 			    newWithClass: isa
 				  object: self];
 
-		if (data[i] != NULL && data[i] != DELETED) {
+		if (data[i] != NULL && data[i] != DELETED)
 			block(data[i]->key, data[i]->object, &stop);
-			[pool releaseObjects];
-		}
 	}
-
-	[pool release];
 }
 
 - (void)replaceObjectsUsingBlock: (of_dictionary_replace_block_t)block
 {
-	OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
 	size_t i;
 	BOOL stop = NO;
 	unsigned long mutations2 = mutations;
 
 	for (i = 0; i < size && !stop; i++) {
@@ -321,14 +315,10 @@
 					selector: _cmd];
 
 			[new retain];
 			[data[i]->object release];
 			data[i]->object = new;
-
-			[pool releaseObjects];
 		}
 	}
-
-	[pool release];
 }
 #endif
 @end