boto/boto — pull request #1577 by cm6051 (2013-07-01 10:33:12+00:00)
Title: Fix-up millisecond timestamps sent by CloudFormation API

The fixes already in boto 2.9.6 don't actually fix https://forums.aws.amazon.com/thread.jspa?threadID=127406 for me, as I am both creating and deleting stacks which are represented with millisecond timestamps by the API. This fixes it for me.