# knife-ec2 0.11.0 release notes: This release of `knife-ec2` adds features like spot pricing, EBS volume encryption support and some bug fixes. There is also a dependency update for the `fog` gem and 'em-winrm' dependency is removed. Special thanks go to contributors **Erik Frey** for addressing [knife-ec2:#94](https://github.com/chef/knife-ec2/pull/94) and **Igor Shpakov** for lazy loading fog library. See the [CHANGELOG](https://github.com/opscode/knife-ec2/blob/master/CHANGELOG.md) for a list of all changes in this release, and review [DOC_CHANGES.md](https://github.com/opscode/knife-ec2/blob/master/DOC_CHANGES.md) for relevant documentation updates. Issues with `knife-ec2` should be reported in the issue system at https://github.com/opscode/knife-ec2/issues. Learn more about how you can contribute features and bug fixes to `knife-ec2` at https://github.com/opscode/knife-ec2/blob/master/CONTRIBUTING.md. ## Features added in knife-ec2 0.11.0 * Support for Spot Instances (from Erik Frey) * Lazy loading of fog library (from Igor Shpakov) * Support for EBS volume encryption in `knife-ec2 server create` options * Added ability to use IAM role credentials ## knife-ec2 on RubyGems and Github https://rubygems.org/gems/knife-ec2 https://github.com/opscode/knife-ec2 ## Issues fixed in knife-ec2 0.11.0 * Update `fog` gem dependency to `fog v1.25` * Remove 'em-winrm' gem dependency * [knife-ec2:#273](https://github.com/chef/knife-ec2/pull/273) Remove -s option for data bag secret and subnets * [knife-ec2:#265](https://github.com/chef/knife-ec2/pull/265) showing error message for incorrect option input