docs: adding documentation for release and db schema

Author: burythehammer

CHANGELOG.md

@@ -3,6 +3,20 @@
 All notable changes to this project will be documented in this file.
 See updating [Changelog example here](https://keepachangelog.com/en/1.0.0/)
 
+
+# 2.3.0 (15th August 2025)
+
+### Added
+
+- Redis Database version support on create. Specify a version on create to create a DB of that version.
+- Database upgrade path. If you specify a different version to something already specified, the provider will upgrade your database to the new version. Will fail on downgrade.
+
+### Changed
+- Updating multiple dependencies.
+
+## Removed
+- Deprecate subscription version support. If you use `redis_version` on your pro subscription a warning will come up. This will be removed entirely on a major update.
+
 # 2.2.0 (1st August 2025)
 
 ### Added

docs/resources/rediscloud_subscription_database.md

@@ -80,6 +80,7 @@ The following arguments are supported:
 
 * `subscription_id` - (Required) The ID of the subscription to create the database in. **Modifying this attribute will force creation of a new resource.**
 * `name` - (Required) A meaningful name to identify the database
+* `redis_version` - (Optional) The Redis version of the database. If omitted, the Redis version will be the default.
 * `throughput_measurement_by` - (Required) Throughput measurement method that will be used by your databases. Either `number-of-shards` or `operations-per-second`. **`number-of-shards` is deprecated and only supported for legacy deployments.**
 * `throughput_measurement_value` - (Required) Throughput value (as applies to selected measurement method)
 * `memory_limit_in_gb` - (Optional -  **Required if `dataset_size_in_gb` is unset**) Maximum memory usage for this specific database, including replication and other overhead **Deprecated in favor of `dataset_size_in_gb` - not possible to import databases with this attribute set**