Add Trino 478 release note

docs/src/main/sphinx/release.md

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 ```{toctree}
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+release/release-478
 release/release-477
 release/release-476
 release/release-475

docs/src/main/sphinx/release/release-478.md

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+# Release 478 (22 Oct 2025)
+
+## General
+
+* Add support for column lineage in `UNNEST` clauses. ({issue}`16946`)
+* Add `retry-policy.allowed` configuration property to specify which retry
+  policies can be selected by the user. ({issue}`26628`)
+* Add support for loading plugins from multiple directories. ({issue}`26855`)
+* Add the `/v1/integrations/gateway` endpoint for integration with Trino Gateway. ({issue}`26548`)
+* Allow dropping an uninitialized catalog that failed to load. ({issue}`26918`)
+* Improve performance of queries with an `ORDER BY` clause. ({issue}`26725`)
+* Improve performance of `MERGE` statements involving a `NOT MATCHED` case. ({issue}`26759`)
+* Improve performance of queries with joins which spill to disk. ({issue}`26076`)
+* Fix potential incorrect results when reading `row` type. ({issue}`26806`)
+* Return all catalogs, including uninitialized ones, for queries from `metadata.catalogs`. ({issue}`26918`)
+* Ensure that queries with and without `EXPLAIN ANALYZE` are planned identically. ({issue}`26938`)
+* In row pattern matching, restrict logical navigations to current match in running semantics. ({issue}`26981`)
+
+## Security
+
+* Propagate `queryId` to the [Open Policy Agent](/security/opa-access-control)
+  authorizer. ({issue}`26851`)
+
+## Web UI
+
+* Add support for filtering queries by `X-Trino-Trace-Token` value in the [](/admin/preview-web-interface). ({issue}`26447`)
+* Improve rendering performance of large query JSON in the [](/admin/preview-web-interface). ({issue}`26807`)
+* Fix rendering of large query plans in the [](/admin/preview-web-interface). ({issue}`26749`)
+* Fix rendering of the splits timeline for queued queries in the [](/admin/preview-web-interface) to prevent
+  blank screen ({issue}`26920`)
+
+## Docker image
+
+* Run Trino on JDK 25.0.0 (build 36). ({issue}`26693`)
+
+## Delta Lake connector
+
+* Fix failure when reading `map` type with value type is `json` and value is `NULL`. ({issue}`26700`)
+* Deprecate the `gcs.use-access-token` configuration property. Use `gcs.auth-type` instead. ({issue}`26681`)
+
+## Google Sheets connector
+
+* Fix potential query failure when the `gsheets.delegated-user-email` configuration property
+  is used. ({issue}`26501`)
+
+## Hive connector
+
+* Add support for reading encrypted Parquet files. ({issue}`24517`, {issue}`9383`)
+* Deprecate the `gcs.use-access-token` configuration property. Use `gcs.auth-type` instead. ({issue}`26681`)
+* Improve performance of queries using complex predicates on `$path` column. ({issue}`27000`)
+* Prevent writing invalid dates and timestamps before `1582-10-15` by the ORC writer. ({issue}`26507`)
+
+## Hudi connector
+
+* Deprecate the `gcs.use-access-token` configuration property. Use `gcs.auth-type` instead. ({issue}`26681`)
+
+## Iceberg connector
+
+* Improve performance when writing sorted tables and `iceberg.sorted-writing.local-staging-path`
+ is set. ({issue}`24376`)
+* Return execution metrics while running the `remove_orphan_files` procedure. ({issue}`26661`)
+* Deprecate the `gcs.use-access-token` configuration property. Use `gcs.auth-type` instead. ({issue}`26681`)
+* Collect distinct values count on all columns when replacing tables. ({issue}`26983`)
+* Fix failure due to column count mismatch when executing the `add_files_from_table`
+  procedure. ({issue}`26774`)
+* Fix failure when executing `optimize_manifests` on tables without a snapshot. ({issue}`26970`)
+* Fix incorrect results when reading Avro files migrated from Hive. ({issue}`26863`)
+* Fix failure when executing `SHOW CREATE SCHEMA` on a schema with unsupported properties
+  with REST, Glue or Nessie catalog. ({issue}`24744`)
+
+## Kafka connector
+
+* Fix failure when filtering partitions by timestamp offset. ({issue}`26787`)
+
+## SPI
+
+* Require `shutdown` to be implemented by the `Connector`. ({issue}`26718`)
+* Deprecate `io.trino.spi.type.Type#appendTo` method. ({issue}`26922`)