chore: prepare release 1.3.0-rc.0

Bump version and update CHANGELOG.md

Signed-off-by: Arnaldo Cesco <arnaldo.cesco@secomind.com>

Author: Annopaolo

CHANGELOG.md

@@ -4,10 +4,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
-## [1.3.0] - Unreleased
+## [1.3.0-rc.0] - 2025-11-21
 ### Added
 - Add the option to enable keepalive for scylladb connections, using the environment variable
   `DOCKER_VERNEMQ_ASTARTE_VMQ_PLUGIN__CASSANDRA__ENABLE_KEEPALIVE`. Defaults to `true`
+- Devices can now declare support for optional Astarte MQTT v1 features to Astarte via capabilities
 
 ## [1.2.1-rc.0] - 2025-08-22
 ### Changed

mix.exs

@@ -22,7 +22,7 @@ defmodule Astarte.VMQ.Plugin.Mixfile do
   def project do
     [
       app: :astarte_vmq_plugin,
-      version: "1.2.1-alpha.0",
+      version: "1.3.0-rc.0",
       elixir: "~> 1.15",
       elixirc_paths: elixirc_paths(Mix.env()),
       start_permanent: Mix.env() == :prod,