Add Trino 449 release notes

docs/src/main/sphinx/release.md

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 ```{toctree}
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+release/release-449
 release/release-448
 release/release-447
 release/release-446

docs/src/main/sphinx/release/release-449.md

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+# Release 449 (31 May 2024)
+
+## General
+
+* Add an event listener which exposes collected events to an HTTP endpoint. ({issue}`22158`)
+* Fix rare query failure or incorrect results for array types when the data is
+  dictionary encoded. ({issue}`21911`)
+* Fix JMX metrics not exporting for resource groups. ({issue}`21343`)
+
+## BigQuery connector
+
+* Improve performance when listing schemas while the
+  `bigquery.case-insensitive-name-matching` configuration property is enabled. ({issue}`22033`)
+
+## ClickHouse connector
+
+* Add support for pushing down execution of the `count(distinct)`, `corr`,
+  `covar_samp`, and `covar_pop` functions to the underlying database. ({issue}`7100`)
+* Improve performance when pushing down equality predicates on textual types. ({issue}`7100`)
+
+## Delta Lake connector
+
+* Add support for [the `$partitions` system table](delta-lake-partitions-table). ({issue}`18590`)
+* Add support for reading from and writing to tables with
+  [VACUUM Protocol Check](https://github.com/delta-io/delta/blob/master/PROTOCOL.md#vacuum-protocol-check). ({issue}`21398`)
+* Add support for configuring the query retry policy on the S3 filesystem with
+  the `s3.retry-mode` and `s3.max-error-retries` configuration properties.
+* Automatically use `varchar` in struct types as a type during table creation
+  when `char` is specified. ({issue}`21511`)
+* Improve performance of writing to Parquet files. ({issue}`22089`)
+* Fix query failure when the `hive.metastore.glue.catalogid` configuration
+  property is set. ({issue}`22048`)
+
+## Hive connector
+
+* Add support for specifying a catalog name in the Thrift metastore with the
+  `hive.metastore.thrift.catalog-name` configuration property. (`10287`)
+* Add support for configuring the query retry policy on the S3 filesystem with
+  the `s3.retry-mode` and `s3.max-error-retries` configuration properties.
+* Improve performance of writing to Parquet files. ({issue}`22089`)
+* Fix failure when filesystem caching is enabled on Trino clusters with a single
+  node. ({issue}`21987`)
+* Fix failure when listing Hive tables with unsupported syntax. ({issue}`21981`)
+* Fix query failure when the `hive.metastore.glue.catalogid` configuration
+  property is set. ({issue}`22048`)
+* Fix failure when running the `flush_metadata_cache` table procedure with the
+  Glue v2 metastore. ({issue}`22075`)
+
+## Hudi connector
+
+* Add support for configuring the query retry policy on the S3 filesystem with
+  the `s3.retry-mode` and `s3.max-error-retries` configuration properties.
+* Improve performance of writing to Parquet files. ({issue}`22089`)
+
+## Iceberg connector
+
+* Add support for views when using the Iceberg REST catalog. ({issue}`19818`)
+* Add support for configuring the query retry policy on the S3 filesystem with
+  the `s3.retry-mode` and `s3.max-error-retries` configuration properties.
+* Automatically use `varchar` in struct types as a type during table creation
+  when `char` is specified. ({issue}`21511`)
+* Automatically use microsecond precision for temporal types in struct types
+  during table creation. ({issue}`21511`)
+* Improve performance and memory usage when
+  [equality delete](https://iceberg.apache.org/spec/#equality-delete-files)
+  files are used. ({issue}`18396`)
+* Improve performance of writing to Parquet files. ({issue}`22089`)
+* Fix failure when writing to tables with Iceberg `VARBINARY` values. ({issue}`22072`)
+
+## Pinot connector
+
+* {{breaking}} Remove support for non-gRPC clients and the `pinot.grpc.enabled`
+  and `pinot.estimated-size-in-bytes-for-non-numeric-column` configuration
+  properties. ({issue}`22213`)
+
+## Snowflake connector
+
+* Fix incorrect type mapping for numeric values. ({issue}`20977`)