Merge pull request #14253 from rabbitmq/sql-release-notes

Update 4.2 release notes for AMQP SQL

Author: ansd

release-notes/4.2.0.md

@@ -26,11 +26,12 @@ AMQP 1.0 clients can now define SQL-like filter expressions when consuming from
 RabbitMQ will only dispatch messages that match the provided filter expression, reducing network traffic and client-side processing overhead.
 SQL filter expressions are a more powerful alternative to the [AMQP Property Filter Expressions](https://www.rabbitmq.com/blog/2024/12/13/amqp-filter-expressions) introduced in RabbitMQ 4.1.
 
-SQL filter expressions are based on the [JMS message selector syntax](https://jakarta.ee/specifications/messaging/3.1/jakarta-messaging-spec-3.1#message-selector-syntax) and support:
-* Comparison operators (`=`, `<>`, `>`, `<`, `>=`, `<=`)
+RabbitMQ implements a subset of [AMQP Filter Expressions Version 1.0 Committee Specification Draft 01 Section 6](https://docs.oasis-open.org/amqp/filtex/v1.0/csd01/filtex-v1.0-csd01.html#_Toc67929276) including support for:
+* Comparison operators (`=`, `!=`, `<>`, `>`, `<`, `>=`, `<=`)
 * Logical operators (`AND`, `OR`, `NOT`)
-* Arithmetic operators (`+`, `-`, `*`, `/`)
-* Special operators (`BETWEEN`, `LIKE`, `IN`, `IS NULL`)
+* Arithmetic operators (`+`, `-`, `*`, `/`, `%`)
+* Special operators (`LIKE`, `IN`, `IS NULL`)
+* `UTC` function
 * Access to the properties and application-properties sections
 
 #### Examples
@@ -45,13 +46,12 @@ Complex expression:
 
 ```sql
 order_type IN ('premium', 'express') AND
-total_amount BETWEEN 100 AND 5000 AND
 (customer_region LIKE 'EU-%' OR customer_region = 'US-CA') AND
-properties.creation-time >= 1750772279000 AND
+UTC() < properties.absolute-expiry-time AND
 NOT cancelled
 ```
 
-Pull Request: [#14110](https://github.com/rabbitmq/rabbitmq-server/pull/14110)
+Pull Request: [#14184](https://github.com/rabbitmq/rabbitmq-server/pull/14184)
 
 ### Incoming and Outgoing Message Interceptors for native protocols