[1.1.X] Documented backwards incompatibility in 1.1.X branch introduced in r12283

for any number of test failures.  If needed, the number of test failures can be

found at the end of the test runner's output.

Cookie encoding

---------------

To fix bugs with cookies in Internet Explorer, Safari, and possibly other

browsers, our encoding of cookie values was changed so that the characters

comma and semi-colon are treated as non-safe characters, and are therefore

encoded as ``\054`` and ``\073`` respectively.  This could produce backwards

incompatibilities, especially if you are storing comma or semi-colon in

cookies and have javascript code that parses and manipulates cookie values

client-side.

One new feature

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