diff --git a/include/xbps.h.in b/include/xbps.h.in
index a2544b44..aa10a95e 100644
--- a/include/xbps.h.in
+++ b/include/xbps.h.in
@@ -48,7 +48,7 @@
  *
  * This header documents the full API for the XBPS Library.
  */
-#define XBPS_API_VERSION	"20141107"
+#define XBPS_API_VERSION	"20141113"
 
 #ifndef XBPS_VERSION
  #define XBPS_VERSION		"UNSET"
diff --git a/include/xbps/xbps_array.h b/include/xbps/xbps_array.h
index 0c5c8b54..1d404baa 100644
--- a/include/xbps/xbps_array.h
+++ b/include/xbps/xbps_array.h
@@ -59,6 +59,7 @@ xbps_object_iterator_t xbps_array_iterator(xbps_array_t);
 xbps_object_t	xbps_array_get(xbps_array_t, unsigned int);
 bool		xbps_array_set(xbps_array_t, unsigned int, xbps_object_t);
 bool		xbps_array_add(xbps_array_t, xbps_object_t);
+bool		xbps_array_add_first(xbps_array_t, xbps_object_t);
 void		xbps_array_remove(xbps_array_t, unsigned int);
 
 bool		xbps_array_equals(xbps_array_t, xbps_array_t);
diff --git a/lib/portableproplib/prop/prop_array.h b/lib/portableproplib/prop/prop_array.h
index 513299fc..684c68f6 100644
--- a/lib/portableproplib/prop/prop_array.h
+++ b/lib/portableproplib/prop/prop_array.h
@@ -59,6 +59,7 @@ prop_object_iterator_t prop_array_iterator(prop_array_t);
 prop_object_t	prop_array_get(prop_array_t, unsigned int);
 bool		prop_array_set(prop_array_t, unsigned int, prop_object_t);
 bool		prop_array_add(prop_array_t, prop_object_t);
+bool		prop_array_add_first(prop_array_t, prop_object_t);
 void		prop_array_remove(prop_array_t, unsigned int);
 
 bool		prop_array_equals(prop_array_t, prop_array_t);
diff --git a/lib/portableproplib/prop_array.c b/lib/portableproplib/prop_array.c
index 5a4d82e0..5500dd9a 100644
--- a/lib/portableproplib/prop_array.c
+++ b/lib/portableproplib/prop_array.c
@@ -615,6 +615,45 @@ _prop_array_add(prop_array_t pa, prop_object_t po)
 	return (true);
 }
 
+static bool
+_prop_array_add_first(prop_array_t pa, prop_object_t po)
+{
+	unsigned int cnt;
+	/*
+	 * Array must be WRITE-LOCKED.
+	 */
+
+	_PROP_ASSERT(pa->pa_count <= pa->pa_capacity);
+
+	if (prop_array_is_immutable(pa) ||
+	    (pa->pa_count == pa->pa_capacity &&
+	    _prop_array_expand(pa, pa->pa_capacity + EXPAND_STEP) == false))
+		return false;
+
+	prop_object_retain(po);
+	if (pa->pa_count) {
+		cnt = pa->pa_count+1;
+		/* move all stored elements to the right */
+		while (--cnt) {
+			prop_object_t opo = pa->pa_array[cnt-1];
+			_PROP_ASSERT(opo != NULL);
+			prop_object_retain(opo);
+			pa->pa_array[cnt] = opo;
+			prop_object_release(opo);
+			printf("%s: po %p\n", __func__, pa->pa_array[cnt]);
+		}
+		/* passed in object is now the first element */
+		pa->pa_array[0] = po;
+		pa->pa_version++;
+		pa->pa_count++;
+		printf("%s: po %p\n", __func__, pa->pa_array[0]);
+	} else {
+		pa->pa_array[pa->pa_count++] = po;
+		pa->pa_version++;
+	}
+	return true;
+}
+
 /*
  * prop_array_set --
  *	Store a reference to an object at the specified array index.
@@ -679,6 +718,26 @@ prop_array_add(prop_array_t pa, prop_object_t po)
 	return (rv);
 }
 
+/*
+ * prop_array_add_first --
+ *	Add a reference to an object to the specified array, inserting it
+ *	as first element, moving all objects to the right and growing the
+ *	array's capacity, if necessary.
+ */
+bool
+prop_array_add_first(prop_array_t pa, prop_object_t po)
+{
+	bool rv;
+
+	if (! prop_object_is_array(pa))
+		return (false);
+
+	_PROP_RWLOCK_WRLOCK(pa->pa_rwlock);
+	rv = _prop_array_add_first(pa, po);
+	_PROP_RWLOCK_UNLOCK(pa->pa_rwlock);
+
+	return (rv);
+}
 /*
  * prop_array_remove --
  *	Remove the reference to an object from an array at the specified
diff --git a/lib/proplib_wrapper.c b/lib/proplib_wrapper.c
index dfbdfd62..3a8a8966 100644
--- a/lib/proplib_wrapper.c
+++ b/lib/proplib_wrapper.c
@@ -112,6 +112,12 @@ xbps_array_add(xbps_array_t a, xbps_object_t obj)
 	return prop_array_add(a, obj);
 }
 
+bool
+xbps_array_add_first(xbps_array_t a, xbps_object_t obj)
+{
+	return prop_array_add_first(a, obj);
+}
+
 void
 xbps_array_remove(xbps_array_t a, unsigned int i)
 {
diff --git a/lib/transaction_package_replace.c b/lib/transaction_package_replace.c
index f8e6ceca..031f19a5 100644
--- a/lib/transaction_package_replace.c
+++ b/lib/transaction_package_replace.c
@@ -123,7 +123,8 @@ xbps_transaction_package_replace(struct xbps_handle *xhp, xbps_array_t pkgs)
 			 */
 			xbps_dictionary_set_cstring_nocopy(instd,
 			    "transaction", "remove");
-			xbps_array_add(pkgs, instd);
+			if (!xbps_array_add_first(pkgs, instd))
+				return EINVAL;
 			free(curpkgname);
 		}
 		xbps_object_iterator_release(iter);