Release notes for v2.6.0-rc1

Signed-off-by: Richard Scothern <richard.scothern@docker.com>

CHANGELOG.md

@@ -1,9 +1,80 @@
 # Changelog
 
+## 2.6.0-rc1 (2016-10-10)
+
+#### Storage
+ - S3: fixed bug in delete due to read-after-write inconsistency
+ - S3: allow EC2 IAM roles to be used when authorizing region endpoints
+ - S3: add Object ACL Support
+ - S3: fix delete method's notion of subpaths
+ - S3: use multipart upload API in `Move` method for performance
+ - S3: add v2 signature signing for legacy S3 clones
+ - Swift: add simple heuristic to detect incomplete DLOs during read ops
+ - Swift: support different user and tenant domains
+ - Swift: bulk deletes in chunks
+ - Aliyun OSS: fix delete method's notion of subpaths
+ - Aliyun OSS: optimize data copy after upload finishes
+ - Azure: close leaking response body
+ - Fix storage drivers dropping non-EOF errors when listing repositories
+ - Compare path properly when listing repositories in catalog
+ - Add a foreign layer URL host whitelist
+ - Improve catalog enumerate runtime
+
+#### Registry
+  - Override media type returned from `Stat()` for existing manifests
+  - Export `storage.CreateOptions` in top-level package
+  - Enable notifications to endpoints that use self-signed certificates
+  - Properly validate multi-URL foreign layers
+  - Add control over validation of URLs in pushed manifests
+  - Proxy mode: fix socket leak when pull is cancelled
+  - Tag service: properly handle error responses on HEAD request
+  - Support for custom authentication URL in proxying registry
+  - Add configuration option to disable access logging
+  - Add notification filtering by target media type
+  - Manifest: `References()` returns all children
+  - Honor `X-Forwarded-Port` and Forwarded headers
+  - Reference: Preserve tag and digest in With* functions
+
+#### Client
+  - Changes the client Tags `All()` method to follow links
+  - Allow registry clients to connect via HTTP2
+  - Better handling of OAuth errors in client
+  
+#### Spec
+  - Manifest: clarify relationship between urls and foreign layers
+
+#### Manifest
+  - Add plugin mediatype to distribution manifest
+
+#### Docs
+
+  - Document `TOOMANYREQUESTS` error code
+  - Document required Let's Encrypt port
+  - Improve documentation around implementation of OAuth2
+
+#### Auth
+  - Add support for registry type in scope
+  - Add support for using v2 ping challenges for v1
+  - Add leeway to JWT `nbf` and `exp` checking
+  - htpasswd: dynamically parse htpasswd file
+  - Fix missing auth headers with PATCH HTTP request when pushing to default port
+
+#### Dockerfile
+  - Update to go1.7
+  - Reorder Dockerfile steps for better layer caching
+
+#### Notes
+
+Documentation has moved to the documentation repository at
+`github.com/docker/docker.github.io/tree/master/registry`
+
+The registry is go 1.7 compliant, and passes newer, more restrictive `lint` and `vet` ing.
+
+
 ## 2.5.0 (2016-06-14)
 
-### Storage
-- Ensure uploads directory is cleaned after upload is commited
+#### Storage
+- Ensure uploads directory is cleaned after upload is committed
 - Add ability to cap concurrent operations in filesystem driver
 - S3: Add 'us-gov-west-1' to the valid region list
 - Swift: Handle ceph not returning Last-Modified header for HEAD requests
@@ -23,13 +94,13 @@
 - Update the auth spec scope grammar to reflect the fact that hostnames are optionally supported
 - Clarify API documentation around catalog fetch behavior
 
-### API
+#### API
 - Support returning HTTP 429 (Too Many Requests)
 
-### Documentation
+#### Documentation
 - Update auth documentation examples to show "expires in" as int
 
-### Docker Image
+#### Docker Image
 - Use Alpine Linux as base image