chg: [changelog] preparing v0.2

CHANGELOG.md

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+# Changelog for Cocktailparty v0.2 ( Stream distribution Beta)
+
+Welcome to the latest update of Cocktailparty! We're excited to bring you several new features and improvements in this release. Here's what's new in version 0.2:
+
+### Enhanced Stream Distribution
+- **Multiple Redis Instances**: Cocktailparty now supports using several Redis instances, enhancing scalability and performance.
+- **Roles and Permissions System**: Administrators can now create roles and assign permissions for greater flexibility in user management.
+  ![Example of roles for an instance](img/roles.png)
+- **Public Sources**: Sources can now be marked as `public`, allowing all users to fetch data without needing to subscribe first.
+
+### Introducing Sinks
+- **Sink Channels**: Introduction of `sinks` – Redis channels where users can push data (more details coming in the next release).
+
+### User Experience and Interface Improvements
+- **Source Previews**: Display a sample of the latest 5 messages from each `source`, allowing users to preview content before subscribing.
+- **Connection Indicator**: Addition of a Redis-instance connection indicator to provide real-time connectivity status.
+- **Log Formatting**: Improved log formatting for better readability and troubleshooting.
+- **IPv6 Support**: Full IPv6 support for modern networking compatibility.
+
+### Role Management and Security
+- **Default Role for New Users**: New users are automatically assigned to the `default` role, which allows access to public `sources` only.
+- **Mass Subscription Management**: Admins can now subscribe and unsubscribe users in bulk, simplifying user management.
+
+### Developer Tools and Features
+- **Enhanced Flag and Dashboard Features**: `FunWithFlags` and the Phoenix Dashboard are now active in production. Additionally, Mailbox Preview is enabled in the development environment.
+
+Thank you for your continued support, and we hope you enjoy these new features in Cocktailparty! Your feedback is invaluable as we strive to improve and expand our service.
+
+# v0.1 (2023-06-16)
+
+## Initial poc release
+
+Cocktailparty inital features:
+
+- subscribe to pubsub redis topics into "sources"
+- allow users to subscribe to "sources"
+- broadcast subscribed pubsub topics to users over websocket
+- basic CRUD for sources / users
+- user authentication, authorization, creation, and self-registration
+- user presence indicators on websocket connections
+- seperate broker / webserver nodes to avoid downtime on deploy