Arshad Ali has an announcement:
You can now create Azure Synapse Runtime for Apache Spark 3.5. The essential changes include features which come from upgrading Apache Spark to version 3.5 and Delta Lake 3.2. Please review the official release notes for Apache Spark 3.5 to check the complete list of fixes and features. In addition, review the migration guidelines between Spark 3.4 and 3.5 to assess potential changes to your applications, jobs and notebooks.
Credit where credit is due: I’ve made light of the utter lack of work on Azure Synapse Analytics since Microsoft Fabric’s release. But hey, they did a thing. Granted, the impetus behind this was to “prepare for migrating to Microsoft Fabric Spark.”