chore(main): release 0.4.0 (#85)

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Co-authored-by: Averi Kitsch <[email protected]>

Author: release-please[bot]

CHANGELOG.md

@@ -1,5 +1,22 @@
 # Changelog
 
+## [0.4.0](https://github.com/googleapis/langchain-google-spanner-python/compare/v0.3.0...v0.4.0) (2024-09-24)
+
+
+### Features
+
+* Remove support for Python 3.8 ([#92](https://github.com/googleapis/langchain-google-spanner-python/issues/92)) ([8446e0e](https://github.com/googleapis/langchain-google-spanner-python/commit/8446e0e68b5a86d9ad96925908159aa4c5e9b484))
+
+
+### Bug Fixes
+
+* Use Spanner's UPSERT over INSERT ([#90](https://github.com/googleapis/langchain-google-spanner-python/issues/90)) ([2637e2d](https://github.com/googleapis/langchain-google-spanner-python/commit/2637e2de2ab75dfd51abff7cf0b0c5cd90e6cec9))
+
+
+### Documentation
+
+* Fix format in README.rst ([#84](https://github.com/googleapis/langchain-google-spanner-python/issues/84)) ([366a040](https://github.com/googleapis/langchain-google-spanner-python/commit/366a040828fdecc28217661955d9c6376808cc9c))
+
 ## [0.3.0](https://github.com/googleapis/langchain-google-spanner-python/compare/v0.2.1...v0.3.0) (2024-05-06)
 
 

src/langchain_google_spanner/version.py

@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.3.0"
+__version__ = "0.4.0"