Add Trino 424 release notes

docs/src/main/sphinx/release.md

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 ```{toctree}
 :maxdepth: 1
 
+release/release-424
 release/release-423
 release/release-422
 release/release-421

docs/src/main/sphinx/release/release-424.md

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+# Release 424 (17 Aug 2023)
+
+## General
+
+* Reduce coordinator overhead on large clusters. ({issue}`18542`)
+* Require the JVM default charset to be UTF-8. This can be set with the JVM
+  command line option `-Dfile.encoding=UTF-8`. ({issue}`18657`)
+
+## JDBC driver
+
+* Add the number of bytes that have been written to the query results response. ({issue}`18651`)
+
+## Delta Lake connector
+
+* Remove the legacy Parquet reader, along with the
+  `parquet.optimized-reader.enabled` and
+  `parquet.optimized-nested-reader.enabled` configuration properties. ({issue}`18639`)
+
+## Hive connector
+
+* Improve performance for line-oriented Hive formats. ({issue}`18703`)
+* Improve performance of reading JSON files. ({issue}`18709`)
+* Remove the legacy Parquet reader, along with the
+  `parquet.optimized-reader.enabled` and
+  `parquet.optimized-nested-reader.enabled` configuration properties. ({issue}`18639`)
+* Fix incorrect reporting of written bytes for uncompressed text files, which
+  prevented the `target_max_file_size` session property from working. ({issue}`18701`)
+
+## Hudi connector
+
+* Remove the legacy Parquet reader, along with the
+  `parquet.optimized-reader.enabled` and
+  `parquet.optimized-nested-reader.enabled` configuration properties. ({issue}`18639`)
+
+## Iceberg connector
+
+* Add support for `CASCADE` option in `DROP SCHEMA` statements. ({issue}`18689`)
+* Remove the legacy Parquet reader, along with the
+  `parquet.optimized-reader.enabled` and
+  `parquet.optimized-nested-reader.enabled` configuration properties. ({issue}`18639`)
+* Fix potential incorrect query results when a query involves a predicate on a
+  `timestamp with time zone` column. ({issue}`18588`)
+
+## Memory connector
+
+* Add support for `CASCADE` option in `DROP SCHEMA` statements. ({issue}`18668`)
+
+## PostgreSQL connector
+
+* Add support for `CASCADE` option in `DROP SCHEMA` statements. ({issue}`18663`)
+* Remove support for Postgres versions older than
+  [version 11](https://www.postgresql.org/support/versioning/). ({issue}`18696`)
+
+## SPI
+
+* Introduce the `getNewTableWriterScalingOptions` and
+  `getInsertWriterScalingOptions` methods to `ConnectorMetadata`, which enable
+  connectors to limit writer scaling. ({issue}`18561`)