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@@ -13,6 +13,13 @@ Version 2.4.0, Not Yet Released
They have been changed to use the correct encoding, and a test added
to ensure such errors do not recur.
+* Counter mode allows setting a configurable width of the counter.
+ Previously it was allowed for a counter of even 8 bits wide, which
+ would mean the keystream would repeat after just 256 blocks. Now it
+ requires the width be at least 32 bits. The only way this feature
+ could be used was by manually constructing a ``CTR_BE`` object and
+ setting the second parameter to something in the range of 1 to 3.
+
* Add an OID for RIPEMD-160
Version 2.3.0, 2017-10-02