Bumping version to 1.9.0 and generate changelog

Author: FishtownBuildBot

.bumpversion.cfg

@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.9.0rc1
+current_version = 1.9.0
 parse = (?P<major>[\d]+) # major version number
 	\.(?P<minor>[\d]+) # minor version number
 	\.(?P<patch>[\d]+) # patch version number

.changes/1.9.0-rc1.md

@@ -1,4 +1,8 @@
-## dbt-spark 1.9.0-b1 - October 01, 2024
+## dbt-spark 1.9.0 - December 10, 2024
+
+### Breaking Changes
+
+- Drop support for Python 3.8 ([#1121](https://github.com/dbt-labs/dbt-spark/issues/1121))
 
 ### Features
 
@@ -7,6 +11,7 @@
 - Allow configuring snapshot column names ([#1096](https://github.com/dbt-labs/dbt-spark/issues/1096))
 - Support custom ODBC connection parameters via `connection_string_suffix` config ([#1092](https://github.com/dbt-labs/dbt-spark/issues/1092))
 - Add Microbatch Strategy to dbt-spark ([#1109](https://github.com/dbt-labs/dbt-spark/issues/1109))
+- Enable setting current value of dbt_valid_to ([#1112](https://github.com/dbt-labs/dbt-spark/issues/1112))
 
 ### Fixes
 
@@ -15,6 +20,7 @@
 ### Under the Hood
 
 - Lazy load agate to improve performance ([#1049](https://github.com/dbt-labs/dbt-spark/issues/1049))
+- Isolating distribution testing ([#1069](https://github.com/dbt-labs/dbt-spark/issues/1069))
 
 ### Dependencies
 
@@ -28,4 +34,5 @@
 
 ### Contributors
 - [@jpoley](https://github.com/jpoley) ([#1092](https://github.com/dbt-labs/dbt-spark/issues/1092))
+- [@leahwicz](https://github.com/leahwicz) ([#1069](https://github.com/dbt-labs/dbt-spark/issues/1069))
 - [@nilan3](https://github.com/nilan3) ([#1092](https://github.com/dbt-labs/dbt-spark/issues/1092))