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 v2.22.1


This release fixes working with keys with special characters in them while using Signature V4 with Amazon Simple Storage Service (S3). It also fixes a regression in the ResultSet object, re-adding the nextToken attribute. This was most visible from within Amazon Elastic Compute Cloud (EC2) when calling the get_spot_price_history method.

Users in the cn-north-1 region or who make active use of get_spot_price_history are recommended to upgrade.