[issue26755] Update version{added,changed} docs in devguide

[Berker Peksag]

Changes by Berker Peksag <berker.peksag at gmail.com>:


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resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue26755>
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