### SDK Features

### SDK Enhancements

### SDK Bugs

### SDK Features

### SDK Enhancements
* `aws/credentials`: Add support for getting credential's ExpiresAt. ([#2375](https://github.com/aws/aws-sdk-go/pull/2375))
  * Adds an Expirer interface that Providers can implement, and add a suitable implementation to Expiry class used by most Providers. Add a method on Credentials to get the expiration time of the underlying Provider, if Expirer is supported, without exposing Provider to callers.
  * Fix [#1329](https://github.com/aws/aws-sdk-go/pull/1329)

### SDK Bugs
* `aws/ec2metadata`: bounds check region identifier before split ([#2380](https://github.com/aws/aws-sdk-go/pull/2380))
  * Adds empty response checking to ec2metadata's Region request to prevent a out of bounds panic if empty response received.
* Fix SDK's generated API reference doc page's constants section links ([#2373](https://github.com/aws/aws-sdk-go/pull/2373))
  * Fixes the SDK's generated API reference documentation page's constants section links to to be clickable.

Add Pending change PRs to change log.
Add Pending change PRs to change log.

Adds change PRs: #2380, #2373, #2375 to pending change log.