Update readme, enable all python versions for macos tests (#1478)

* Fix macOS hang with running coverage

* Run coverage only in ubuntu

* Fix syntax error

* Fix run tests logic

* Update readme

* Don't test python 3.10 on macos as it's stuck

* Enable all python versions for macos

Author: thinkall

.github/workflows/python-package.yml

@@ -39,13 +39,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-latest, windows-latest, macos-latest]
         python-version: ["3.10", "3.11", "3.12"]
-        exclude:
-          - os: macos-latest
-            python-version: "3.10"  # macOS runners will hang on python 3.10 for unknown reasons
-          - os: macos-latest
-            python-version: "3.12"  # macOS runners will hang on python 3.12 for unknown reasons
     steps:
       - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}

README.md

@@ -34,7 +34,7 @@ FLAML has a .NET implementation in [ML.NET](http://dot.net/ml), an open-source,
 
 ## Installation
 
-FLAML requires **Python version >= 3.9**. It can be installed from pip:
+The latest version of FLAML requires **Python >= 3.10 and \< 3.13**. While other Python versions may work for core components, full model support is not guaranteed. FLAML can be installed via `pip`:
 
 ```bash
 pip install flaml