April 7 release

Author: deeikele

articles/machine-learning/azure-machine-learning-ci-image-release-notes.md

@@ -20,6 +20,22 @@ Azure Machine Learning checks and validates any machine learning packages that m
 
 Main updates provided with each image version are described in the below sections.
 
+## April 7, 2023
+Version: `23.04.07`
+
+Main changes:
+
+- `Azure Machine Learning SDK` to version `1.49.0`
+- `Certifi` updated to 2022.9.24
+- `.Net` updated from 3.1 (EOL) to 6.0
+- `Pyspark` update to 3.3.1 (mitigating log4j 1.2.17 and common-text-1.6 vulnerabilities)
+- Default `intellisense` to Python 3.10 on the CI
+- Bug fixes and stability improvements
+
+Main environment specific updates:
+
+- `Azureml_py38` environment is now the default.
+
 ## January 19, 2023
 Version: `23.01.19`