You are viewing the documentation for an older version of boto (boto2).

Boto3, the next version of Boto, is now stable and recommended for general use. It can be used side-by-side with Boto in the same project, so it is easy to start using Boto3 in your existing projects as well as new projects. Going forward, API updates and all new feature work will be focused on Boto3.

For more information, see the documentation for boto3.

boto v2.6.0

The 2.6.0 release of boto is now available on PyPI.

You can get a comprehensive list of all commits made between the 2.5.2 release and the 2.6.0 release at…2.6.0.

This release includes:

  • Support for Amazon Glacier
  • Support for AWS Elastic Beanstalk
  • CORS support for Amazon S3
  • Support for Reserved Instances Resale in Amazon EC2
  • Support for IAM Roles

SSL Certificate Verification

In addition, this release of boto changes the default behavior with respect to SSL certificate verification. Our friends at Google contributed code to boto well over a year ago that implemented SSL certificate verification. At the time, we felt the most prudent course of action was to make this feature an opt-in but we always felt that at some time in the future we would enable cert verification as the default behavior. Well, that time is now!

However, in implementing this change, we came across a bug in Python for all versions prior to 2.7.3 (see for details). The net result of this bug is that Python is able to check only the commonName in the SSL cert for verification purposes. Any subjectAltNames are ignored in large SSL keys. So, in addition to enabling verification as the default behavior we also changed some of the service endpoints in boto to match the commonName in the SSL certificate.

If you want to disable verification for any reason (not advised, btw) you can still do so by editing your boto config file (see or you can override it by passing validate_certs=False to the Connection class constructor or the connect_* function.


There were 440 commits in this release from 53 different authors. The authors are listed below, in alphabetical order:

  • acorley
  • acrefoot
  • aedeph
  • allardhoeve
  • almost
  • awatts
  • buzztroll
  • cadams
  • cbednarski
  • cosmin
  • dangra
  • darjus-amzn
  • disruptek
  • djw
  • garnaat
  • gertjanol
  • gimbel0893
  • gochist
  • graphaelli
  • gtaylor
  • gz
  • hardys
  • jamesls
  • jijojv
  • jimbrowne
  • jtlebigot
  • jtriley
  • kopertop
  • kotnik
  • marknca
  • mark_nunnikhoven
  • mfschwartz
  • moliware
  • NeilW
  • nkvoll
  • nsitarz
  • ohe
  • pasieronen
  • patricklucas
  • pfig
  • rajivnavada
  • reversefold
  • robie
  • scott
  • shawnps
  • smoser
  • sopel
  • staer
  • tedder
  • yamatt
  • Yossi
  • yovadia12
  • zachhuff386