chore(main): release 0.21.0

Author: release-please[bot]

CHANGELOG.md

@@ -4,6 +4,25 @@
 
 [1]: https://pypi.org/project/bigframes/#history
 
+## [0.21.0](https://github.com/googleapis/python-bigquery-dataframes/compare/v0.20.1...v0.21.0) (2024-02-09)
+
+
+### Features
+
+* Add `Series.cov` method ([#368](https://github.com/googleapis/python-bigquery-dataframes/issues/368)) ([443db22](https://github.com/googleapis/python-bigquery-dataframes/commit/443db228375da9b232376140c9d5b0db14895eae))
+* Add ml.llm.GeminiTextGenerator model ([#370](https://github.com/googleapis/python-bigquery-dataframes/issues/370)) ([de1e0a4](https://github.com/googleapis/python-bigquery-dataframes/commit/de1e0a451785e679f37b083be6d58c267319f56a))
+* Add XGBoostModel ([#363](https://github.com/googleapis/python-bigquery-dataframes/issues/363)) ([d5518b2](https://github.com/googleapis/python-bigquery-dataframes/commit/d5518b28509be0ce070b22d9134a6a662412010a))
+
+
+### Bug Fixes
+
+* Error message fix. ([#375](https://github.com/googleapis/python-bigquery-dataframes/issues/375)) ([930cf6b](https://github.com/googleapis/python-bigquery-dataframes/commit/930cf6b9ae8a48f422586dbd21b52e15c9ef9492))
+
+
+### Documentation
+
+* Clarify ADC pre-auth in a non-interactive environment ([#348](https://github.com/googleapis/python-bigquery-dataframes/issues/348)) ([99a9e6e](https://github.com/googleapis/python-bigquery-dataframes/commit/99a9e6e15c6eef4297035ce89bb619f8e4ca54ff))
+
 ## [0.20.1](https://github.com/googleapis/python-bigquery-dataframes/compare/v0.20.0...v0.20.1) (2024-02-06)
 
 

bigframes/version.py

@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "0.20.1"
+__version__ = "0.21.0"