update CHANGELOG.md for v2.0a1 #9

	name: Testing build on macos-latest

	on:
	push:
	pull_request:
	schedule:
	- cron: '0 12 * * 0'

	jobs:
	build:
	runs-on: macOS-latest
	timeout-minutes: 60
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v5
	with:
	python-version: '3.11'

	- name: Set up requirements & configuration variables
	run: \|
	brew update
	brew install cmake
	pip install --upgrade pip wheel build
	git submodule update --init --recursive
	pip install -r test_requirements.txt

	- name: make
	shell: bash
	run: \|
	python -m build

	- name: install
	shell: bash
	run: \|
	pip install dist/*.whl

	- name: make test
	shell: bash
	run: \|
	export CASM_PREFIX=$(python -m libcasm.casmglobal --prefix)
	python -m pytest -rsap python/tests

	- name: upload libcasm-clexmonte-macos-latest-x86_64-dist
	if: always()
	uses: actions/upload-artifact@v4
	with:
	name: libcasm-clexmonte-macos-latest-x86_64-dist
	path: dist

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