Fix version support information (#31468)

The Python 3.11 change updated version support for stable version.

This changes updates this and also fixes a few small requirement
miscommunications.

GitOrigin-RevId: 511d25d0fc9b7db033ffa5a0ad2ef9ea4bdaa305

README.md

@@ -86,15 +86,15 @@ Airflow is not a streaming solution, but it is often used to process real-time d
 
 Apache Airflow is tested with:
 
-|            | Main version (dev)           | Stable version (2.6.1)    |
-|------------|------------------------------|---------------------------|
-| Python     | 3.7, 3.8, 3.9, 3.10, 3.11    | 3.7, 3.8, 3.9, 3.10, 3.11 |
-| Platform   | AMD64/ARM64(\*)              | AMD64/ARM64(\*)           |
-| Kubernetes | 1.23, 1.24, 1.25, 1.26, 1.27 | 1.23, 1.24, 1.25, 1.26    |
-| PostgreSQL | 11, 12, 13, 14, 15           | 11, 12, 13, 14, 15        |
-| MySQL      | 5.7, 8                       | 5.7, 8                    |
-| SQLite     | 3.15.0+                      | 3.15.0+                   |
-| MSSQL      | 2017(\*), 2019(\*)           | 2017(\*), 2019(\*)        |
+|            | Main version (dev)           | Stable version (2.6.1) |
+|------------|------------------------------|------------------------|
+| Python     | 3.7, 3.8, 3.9, 3.10, 3.11    | 3.7, 3.8, 3.9, 3.10    |
+| Platform   | AMD64/ARM64(\*)              | AMD64/ARM64(\*)        |
+| Kubernetes | 1.23, 1.24, 1.25, 1.26, 1.27 | 1.23, 1.24, 1.25, 1.26 |
+| PostgreSQL | 11, 12, 13, 14, 15           | 11, 12, 13, 14, 15     |
+| MySQL      | 5.7, 8                       | 5.7, 8                 |
+| SQLite     | 3.15.0+                      | 3.15.0+                |
+| MSSQL      | 2017(\*), 2019(\*)           | 2017(\*), 2019(\*)     |
 
 \* Experimental
 

docs/apache-airflow/howto/upgrading-from-1-10/index.rst

@@ -34,7 +34,7 @@ Airflow 1.10 was the last release series to support Python 2. Airflow 2.0.0
 requires Python 3.6+ and has been tested with Python versions 3.6, 3.7 and 3.8.
 Python 3.9 support was added from Airflow 2.1.2.
 
-Airflow 2.3.0 dropped support for Python 3.6. It's tested with Python 3.7, 3.8, 3.9, 3.10, 3.11.
+Airflow 2.3.0 dropped support for Python 3.6. It's tested with Python 3.7, 3.8, 3.9, 3.10.
 
 If you have a specific task that still requires Python 2 then you can use the ``@task.virtualenv``, ``@task.docker`` or ``@task.kubernetes`` decorators for this.
 

docs/apache-airflow/installation/prerequisites.rst

@@ -18,7 +18,7 @@
 Prerequisites
 -------------
 
-Starting with Airflow 2.3.0, Airflow is tested with:.
+Airflow is tested with:
 
 * Python: 3.7, 3.8, 3.9, 3.10, 3.11
 
@@ -29,7 +29,7 @@ Starting with Airflow 2.3.0, Airflow is tested with:.
   * SQLite: 3.15.0+
   * MSSQL(Experimental): 2017, 2019
 
-* Kubernetes: 1.23, 1.24, 1.25, 1.26
+* Kubernetes: 1.23, 1.24, 1.25, 1.26, 1.27
 
 The minimum memory required we recommend Airflow to run with is 4GB, but the actual requirements depends
 wildly on the deployment options you have