Add Trino 438 release notes

docs/src/main/sphinx/release.md

@@ -6,6 +6,7 @@
 ```{toctree}
 :maxdepth: 1
 
+release/release-438
 release/release-437
 release/release-436
 ```

docs/src/main/sphinx/release/release-438.md

@@ -0,0 +1,45 @@
+# Release 438 (1 Feb 2024)
+
+## General
+
+* Add support for using types such as `char`, `varchar`, `uuid`, `ip_address`,
+  `geometry`, and others with the {func}`reduce_agg` function. ({issue}`20452`)
+* Fix query failure when using `char` types with the {func}`reverse` function. ({issue}`20387`)
+* Fix potential query failure when using the {func}`max_by` function on large
+  datasets. ({issue}`20524`)
+* Fix query failure when querying data with deeply nested rows. ({issue}`20529`)
+
+## Security
+
+* Add support for access control with
+  [Open Policy Agent](/security/opa-access-control). ({issue}`19532`)
+
+## Delta Lake connector
+
+* Add support for configuring the maximum number of values per page when writing
+  to Parquet files with the `parquet.writer.page-value-count` configuration
+  property or the `parquet_writer_page_value_count` session property. ({issue}`20171`)
+
+## Hive connector
+
+* Add support for configuring the maximum number of values per page when writing
+  to Parquet files with the `parquet.writer.page-value-count` configuration
+  property or the `parquet_writer_page_value_count` session property. ({issue}`20171`)
+
+## Iceberg connector
+
+* Add support for `ALTER COLUMN ... DROP NOT NULL` statements. ({issue}`20315`)
+* Add support for configuring the maximum number of values per page when writing
+  to Parquet files with the `parquet.writer.page-value-count` configuration
+  property or the `parquet_writer_page_value_count` session property. ({issue}`20171`)
+* Add support for `array`, `map` and `row` types in the `migrate` table
+  procedure. ({issue}`17583`)
+* Fix potential query failure when running the `optimize` table procedure. ({issue}`20490`)
+
+## Pinot connector
+
+* Add support for the `date` type. ({issue}`13059`)
+
+## PostgreSQL connector
+
+* Add support for `ALTER COLUMN ... DROP NOT NULL` statements. ({issue}`20315`)