Update CHANGES.md and website

Author: Abacn

CHANGES.md

@@ -74,8 +74,8 @@
 * (Java) Enabled state tag encoding v2 by default for new Dataflow Streaming Engine jobs. It can be disabled by passing `--experiments=disable_streaming_engine_state_tag_encoding_v2` or `--updateCompatibilityVersion=2.74.0` pipeline option. Note that the tag encoding version cannot change during a job update. Jobs using tag encoding v2 (enabled by default for new jobs on 2.75.0+) cannot be downgraded to Beam versions prior to 2.73.0, as only versions 2.73.0 and later support tag encoding v2. ([#38705](https://github.com/apache/beam/issues/38705)).
 * (Python) Added instrumentation to support off-the-shelf profiling agents when launching Python SDK Harness ([#38853](https://github.com/apache/beam/issues/38853)).
 * (Java) Added support to the FnApi Data stream protocol allowing runners to isolate bundles slowly processing input from other bundles. ([#39001](https://github.com/apache/beam/issues/39001)).
-* (Java) Flink 2.1 support added ([#38947](https://github.com/apache/beam/issues/38947)).
-* (Java) Flink 2.2 support added ([#38978](https://github.com/apache/beam/issues/38978)).
+* (Java) Flink 2.1 and 2.2 support is added ([#38947](https://github.com/apache/beam/issues/38947)) ([#38978](https://github.com/apache/beam/issues/38978)); Flink 1.17 and 1.18 support is dropped.
+* (Python) MqttIO is now supported in Python via cross-language ([#21060](https://github.com/apache/beam/issues/21060)).
 
 ## Breaking Changes
 

website/www/site/content/en/documentation/runners/flink.md

@@ -358,12 +358,12 @@ To find out which version of Flink is compatible with Beam please see the table
 <tr>
   <td>1.18.x</td>
   <td>beam-runners-flink-1.18</td>
-  <td>&ge; 2.57.0</td>
+  <td>2.57.0 - 2.74.0</td>
 </tr>
 <tr>
   <td>1.17.x</td>
   <td>beam-runners-flink-1.17</td>
-  <td>&ge; 2.56.0</td>
+  <td>2.56.0 - 2.74.0</td>
 </tr>
 <tr>
   <td>1.16.x</td>