enumerate() is no longer bounded to using sequences shorter than LONG_MAX. The possibility of overflow was sending some newsgroup posters into a tizzy.
diff --git a/Misc/NEWS b/Misc/NEWS
index b01633a..01f860b 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -12,6 +12,10 @@
Core and builtins
-----------------
+- The enumerate() builtin function is no longer bounded to sequences smaller
+ than LONG_MAX. Formerly, it raised an OverflowError. Now, automatically
+ shifts from ints to longs.
+
- Issue #1686386: Tuple's tp_repr did not take into account the possibility of
having a self-referential tuple, which is possible from C code. Nor did
object's tp_str consider that a type's tp_str could do something that could