prepared Ditto 2.0.0 release notes + announcement blogpost

Signed-off-by: Thomas Jaeckle <thomas.jaeckle@bosch.io>

deployment/docker/swagger3-index.html

@@ -48,7 +48,6 @@
 
         const ui = SwaggerUIBundle({
                                        urls: [
-                                         {url: "/apidoc/openapi/ditto-api-1.yml", name: "Ditto API v1- deprecated"},
                                            {url: "/apidoc/openapi/ditto-api-2.yml", name:"Ditto API v2"}
                                        ],
                                        "urls.primaryName": "Ditto API v2",

documentation/src/main/resources/_data/sidebars/ditto_sidebar.yml

@@ -23,23 +23,23 @@ entries:
       - title: Release Notes
         output: web
         folderitems:
-#          - title: 2.0.0
-#            url: /release_notes_next.html
-#            output: web
+          - title: 2.0.0
+            url: /release_notes_200.html
+            output: web
           - title: 1.5.1
             url: /release_notes_151.html
             output: web
           - title: 1.5.0
             url: /release_notes_150.html
             output: web
-          - title: 1.4.0
-            url: /release_notes_140.html
-            output: web
 
             subfolders:
               - title: Archive
                 output: web
                 subfolderitems:
+                  - title: 1.4.0
+                    url: /release_notes_140.html
+                    output: web
                   - title: 1.3.0
                     url: /release_notes_130.html
                     output: web

documentation/src/main/resources/_posts/2019-12-12-release-announcement-100.md

@@ -10,7 +10,7 @@ sidebar: false
 toc: false
 ---
 
-Today the Eclipse Ditto is thrilled to announce the availability of Eclipse Ditto's first major release
+Today the Eclipse Ditto team is thrilled to announce the availability of Eclipse Ditto's first major release
 [1.0.0](https://projects.eclipse.org/projects/iot.ditto/releases/1.0.0).
 
 

documentation/src/main/resources/_posts/2021-04-21-release-announcement-200.md

@@ -0,0 +1,85 @@
+---
+title: "Announcing Eclipse Ditto Release 2.0.0"
+published: true
+permalink: 2021-04-29-release-announcement-200.html
+layout: post
+author: thomas_jaeckle
+tags: [blog]
+hide_sidebar: true
+sidebar: false
+toc: false
+---
+
+Today, ~1.5 years after release [1.0.0](2019-12-12-release-announcement-100.html), the Eclipse Ditto team is happy to 
+announce the availability of Eclipse Ditto [2.0.0](https://projects.eclipse.org/projects/iot.ditto/releases/2.0.0).
+
+With the major version 2.0.0 the Ditto team removed technical dept and removed deprecated APIs in order to have a 
+better maintainable codebase, but some awesome new features are included as well.
+
+
+## Adoption
+
+Companies are willing to show their adoption of Eclipse Ditto publicly: [https://iot.eclipse.org/adopters/?#iot.ditto](https://iot.eclipse.org/adopters/?#iot.ditto)
+
+From our various [feedback channels](feedback.html) we however know of more adoption.  
+If you are making use of Eclipse Ditto, it would be great to show your adoption by adding your company to that list of 
+known adopters.  
+In the end, that's one main way of measuring the success of the project.
+
+
+## Changelog
+
+The main changes and additions of Ditto 2.0.0 are:
+
+* Merge/PATCH updates of digital twins
+* Configurable OpenID Connect / OAuth2.0 claim extraction to be used for authorization
+* Establishing connections to endpoints (via AMQP, MQTT, HTTP) utilizing a Ditto managed SSH tunnel
+* Addition of a DevOps API in order to retrieve all known connections
+* Expiring policy subjects + publishing of announcement message prior to expiry
+* Addition of policy actions in order to inject a policy subject based on a provided JWT
+* Built-in acknowledgement for search updates to have the option of twin updates with strong consistency of the search index
+* Restoring active connection faster after a hard restart of the Ditto cluster via automatic prioritization of connections
+* Support for LastWill/Testament + retain flag for MQTT connections
+
+The step to a major version was done because of the following breaking API changes:
+
+* removal of "API version 1" (deprecated in [Ditto 1.1.0](release_notes_110.html#deprecations))
+  from Ditto's Java APIs + HTTP API
+* removal of code in Java APIs marked as `@Deprecated`
+* binary incompatible changes to Java APIs
+* Restructuring of Ditto's Maven modules in order to simplify/ease further development
+
+The following non-functional work is also included:
+
+* Improvement of stability during rolling updates
+* Addition of sharding concept for Ditto internal pub/sub enabling connection of e.g. tens of thousands websocket sessions
+* Background cleanup improvements in order to have less impact on DB roundtrip times
+* Update of third party libraries (e.g. Akka)
+* Documentation of deployment via K3S
+
+Please have a look at the [2.0.0 release notes](release_notes_200.html) for a more detailed information on the release.
+
+
+## Artifacts
+
+The new Java artifacts have been published at the [Eclipse Maven repository](https://repo.eclipse.org/content/repositories/ditto/)
+as well as [Maven central](https://repo1.maven.org/maven2/org/eclipse/ditto/).
+
+The Ditto JavaScript client release was published on [npmjs.com](https://www.npmjs.com/~eclipse_ditto):
+* [@eclipse-ditto/ditto-javascript-client-dom](https://www.npmjs.com/package/@eclipse-ditto/ditto-javascript-client-dom)
+* [@eclipse-ditto/ditto-javascript-client-node](https://www.npmjs.com/package/@eclipse-ditto/ditto-javascript-client-node)
+
+
+The Docker images have been pushed to Docker Hub:
+* [eclipse/ditto-policies](https://hub.docker.com/r/eclipse/ditto-policies/)
+* [eclipse/ditto-things](https://hub.docker.com/r/eclipse/ditto-things/)
+* [eclipse/ditto-things-search](https://hub.docker.com/r/eclipse/ditto-things-search/)
+* [eclipse/ditto-gateway](https://hub.docker.com/r/eclipse/ditto-gateway/)
+* [eclipse/ditto-connectivity](https://hub.docker.com/r/eclipse/ditto-connectivity/)
+* [eclipse/ditto-concierge](https://hub.docker.com/r/eclipse/ditto-concierge/)
+
+<br/>
+<br/>
+{% include image.html file="ditto.svg" alt="Ditto" max-width=500 %}
+--<br/>
+The Eclipse Ditto team

documentation/src/main/resources/pages/ditto/basic-policy.md

@@ -7,8 +7,7 @@ permalink: basic-policy.html
 
 A Policy enables developers to configure fine-grained access control for Things and other entities easily.
 
-{% include note.html content="The policy concept is only supported for Ditto **HTTP API version 2**. <br/>
-  Find the HTTP API reference at [Policies resources](http-api-doc.html?urls.primaryName=api2#/Policies)." %}
+{% include note.html content="Find the HTTP API reference at [Policies resources](http-api-doc.html?urls.primaryName=api2#/Policies)." %}
 
 
 ## Authorization concept

documentation/src/main/resources/pages/ditto/client-sdk-java.md

@@ -63,7 +63,6 @@ AuthenticationProvider authenticationProvider =
 MessagingProvider messagingProvider =
     MessagingProviders.webSocket(WebSocketMessagingConfiguration.newBuilder()
         .endpoint("wss://ditto.eclipseprojects.io")
-        .jsonSchemaVersion(JsonSchemaVersion.V_2)
         // optionally configure a proxy server or a truststore containing the trusted CAs for SSL connection establishment
         .proxyConfiguration(proxyConfiguration)
         .trustStoreConfiguration(TrustStoreConfiguration.newBuilder()
@@ -72,7 +71,7 @@ MessagingProvider messagingProvider =
             .build())
         .build(), authenticationProvider);
 
-DisconnectedDittoClient disconnectedDittoClient = DittoClients.newDisconnectedInstance(messagingProvider);
+DisconnectedDittoClient disconnectedDittoClient = DittoClients.newInstance(messagingProvider);
 
 disconnectedDittoClient.connect()
     .thenAccept(this::startUsingDittoClient)

documentation/src/main/resources/pages/ditto/client-sdk-javascript.md

@@ -21,14 +21,6 @@ All released versions are published on [npmjs.com](https://www.npmjs.com/~eclips
 
 ## Compatibility with [Eclipse Ditto](https://github.com/eclipse/ditto)
 
-The `@eclipse-ditto/ditto-javascript-client-<package>_<ditto-major.minor-version>` modules
-will be compatible with the `<ditto-major.minor-version>`, so e.g. `@eclipse-ditto/ditto-javascript-client-<package>_1.0`
-will be compatible with Eclipse Ditto 1.0.x. The javascript modules themselves use 
-[semantic versioning](https://docs.npmjs.com/about-semantic-versioning) for their
-api changes. All modules are released together, so if there is a version
-`@eclipse-ditto/ditto-javascript-client-api_1.0:1.0.1`, there's also a release
-of `@eclipse-ditto/ditto-javascript-client-dom_1.0:1.0.1`.
-
 The newest release of the JavaScript client will always try to cover as much API
 functionality of the same Eclipse Ditto major version as possible. There might
 however be missing features for which we would be very happy to accept contributions.