Add release notes for ucp 2.0.2 beta 2

datacenter/ucp/2.1/guides/release-notes.md

@@ -10,6 +10,75 @@ known issues for the latest UCP version.
 You can then use [the upgrade instructions](install/upgrade.md), to
 upgrade your installation to the latest release.
 
+## Version 2.1.0 beta 2
+
+(25 Jan 2017)
+
+This version of UCP extends the functionality provided by Docker Engine 1.13.
+Before installing or upgrading this version, you need to install Docker Engine 1.13
+in the nodes that you plan to manage with UCP.
+
+**New features**
+
+* Core
+  * You can now deploy secrets using Compose for Services
+
+* UI/UX
+  * You can now view and manage Stacks (Compose v3 applications consisting of
+  services, volumes, and networks) directly from the UI
+  * The HTTP Routing Mesh settings page now contains a table of all services
+  using HRM, with details on parameters and health status
+  * Admins can now view team membership in a user's details screen
+  * You can now customize session timeouts length in Authentication config screen
+  * Can now mount `tmpfs` or existing local volumes to a service via the UI
+  * Added numerous tooltips throughout the UI
+
+**Bug fixes**
+
+* Core
+  * Promoting a worker to a manager no longer requires manually pulling
+  down `ucp-metrics` image on the node (fixes known beta1 issue)
+  * Fixed an error in which `_ping` calls were causing multiple TCP connections
+  to open up on the cluster
+  * Fixed an issue in which UCP install occasionally failed with the error
+  "failed to change temp password"
+  * Defining multiple HRM networks with overlapping subnets now correctly causes
+  the HTTP Routing Mesh `ucp-hrm` service to fail.
+  * Fixed an issue where multiple rapid updates of HTTP Routing Mesh configuration
+  would not register correctly
+  * With HTTP Routing Mesh, using the "default" backend option with an empty
+  external route now works correctly
+  * Volumes label-based access control now correctly supports volumes created
+  via the `mount` format flag
+
+* UI/UX
+  * Installing DTR no longer fails when "Enable scheduling on UCP controllers and
+  DTR nodes" is unchecked.
+  * HTTP Routing Mesh configuration status messages are now temporary and no
+  longer overlap with text on a service's details screen.
+  * Publishing a port to both TCP and UDP in a service via UI now works correctly
+  * Removed Internal Scheme option when publishing a hostname route
+  * Nodes now stay sorted after clicking a parameter to sort by in the Nodes screen
+  * Metrics on the Nodes screen no longer incorrectly show `-` instead of 0% or 100%
+  * In service deploy/edit screens, secrets have been moved to Environments tab
+
+**Known issues**
+
+When deploying compose files that use secrets, you need to specify all the parameters
+for the service like:
+
+```none
+secrets:
+  - source: "foo"
+    target: "foo"
+    uid: "0"
+    gid: "0"
+    mode: 0400
+```
+
+UCP returns an error if you only use the name of the secret.
+
+
 ## Version 2.1.0 beta 1
 
 (10 Jan 2017)
@@ -55,10 +124,10 @@ Docker Engine 1.13 in the nodes that you plan to manage with UCP.
 
 **Known Issues**
 
-* Promoting a worker to manager causes the promotion process to hang or take a 
-very long time, because the node will not pull the `ucp-metrics` image correctly. 
-The workaround is to use `docker pull docker/ucp-metrics:2.1.0-beta1` on all 
-nodes that you plan to promote to manager. 
+* Promoting a worker to manager causes the promotion process to hang or take a
+very long time, because the node will not pull the `ucp-metrics` image correctly.
+The workaround is to use `docker pull docker/ucp-metrics:2.1.0-beta1` on all
+nodes that you plan to promote to manager.
 * Dashboard metrics may show inaccurately high usage values when using an AWS template
 based deployment