Prepare v1.9.8 release: Increase version and update changelog (#587)

* Prepare v1.9.8 release: Increase version and update changelog

Author: koletzilla

CHANGELOG.md

@@ -1,9 +1,21 @@
-### Release [1.9.8], 2025-XX-XX
+### Release [1.9.9], 2026-XX-XX
+
+
+### Release [1.9.8], 2026-01-12
 
 #### Improvements
 * Delay the deletion of the old materialized view during full refresh execution. This ensures the old materialized view remains operational if an error occurs while the new materialized view is being backfilled ([#568](https://github.com/ClickHouse/dbt-clickhouse/pull/568)).
-* Remove internal aliases for subqueries so the `--empty` flag works when tables are used with alias ([#487](https://github.com/ClickHouse/dbt-clickhouse/pull/487)).
-* Alter destination table along with mv using `on_schema_changes` ([#534](https://github.com/ClickHouse/dbt-clickhouse/pull/534))
+* Remove internal aliases for subqueries so the `--empty` flag works when tables are used with an alias ([#487](https://github.com/ClickHouse/dbt-clickhouse/pull/487)).
+* dbt can now perform ALTER COLUMN operations to update the columns of the destination table of materialized views. By default, it will work as usual (in a `dbt run`, if the columns change, the target table will not change), but you can use the `on_schema_changes` setting to control the behavior ([#534](https://github.com/ClickHouse/dbt-clickhouse/pull/534)).
+* Bump minimum `dbt-adapters` version to 1.16.7 to fix a compatibility issue that breaks tests if an older version is installed ([#578](https://github.com/ClickHouse/dbt-clickhouse/pull/578)).
+* It is now possible to use an empty `local_suffix` configuration ([#569](https://github.com/ClickHouse/dbt-clickhouse/pull/569)).
+* Column order is now respected when using incremental materialization with contracts ([#575](https://github.com/ClickHouse/dbt-clickhouse/pull/575)).
+
+#### Repository maintenance
+* Regular maintenance tasks ([#586](https://github.com/ClickHouse/dbt-clickhouse/pull/586))
+  * Update Python versions used for testing: drop 3.9 support, add 3.13.
+  * Update ClickHouse versions used for testing: drop 25.7, add 25.8, 25.10, 25.11, 25.12 and head.
+  * Update linting libraries versions.
 
 
 ### Release [1.9.7], 2025-12-03

dbt/adapters/clickhouse/__version__.py

@@ -1 +1 @@
-version = '1.9.7'
+version = '1.9.8'