diff --git a/.github/workflows/python-publish.yml b/.github/workflows/python-publish.yml
deleted file mode 100644
index 862034c..0000000
--- a/.github/workflows/python-publish.yml
+++ /dev/null
@@ -1,36 +0,0 @@
-# This workflow will upload a Python Package using Twine when a release is created
-# For more information see: https://help.github.com/en/actions/language-and-framework-guides/using-python-with-github-actions#publishing-to-package-registries
-
-# This workflow uses actions that are not certified by GitHub.
-# They are provided by a third-party and are governed by
-# separate terms of service, privacy policy, and support
-# documentation.
-
-name: Upload Python Package
-
-on:
-  release:
-    types: [published]
-
-jobs:
-  deploy:
-
-    runs-on: ubuntu-latest
-
-    steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v4
-      with:
-        python-version: '3.x'
-    - name: Install dependencies
-      run: |
-        python -m pip install --upgrade pip
-        pip install build
-    - name: Build package
-      run: python -m build
-    - name: Publish package
-      uses: pypa/gh-action-pypi-publish@b7f401de30cb6434a1e19f805ff006643653240e
-      with:
-        user: __token__
-        password: ${{ secrets.PYPI_API_TOKEN }}
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 1f99d1c..14dfeb3 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -5,50 +5,105 @@ on:
   schedule:
     # Run weekly, Friday at 7:15 EST.
     - cron: '15 12 * * 5'
+  release:
+    types: [published]
 
 jobs:
+  build:
+    if: ${{ github.event_name == 'release' && github.event.action == 'published' }}
+    name: Build Wheels
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Install dependencies
+        run: |
+          python -m pip install -U pip
+          python -m pip install build
+
+      - name: Build
+        run: python -m build
+
+      - uses: actions/upload-artifact@v3
+        with:
+          path: |
+            ./dist/*.whl
+            ./dist/*.tar.gz
+
   tests:
+    name: Tests
+    # always run, but wait for build if publishing
+    if: ${{ !cancelled() }}
+    needs: [build]
     runs-on: ubuntu-latest
+    env:
+      PUBLISH: ${{ github.event_name == 'release' && github.event.action == 'published' }}
     strategy:
       matrix:
         python-version: ["3.7", "3.8", "3.9", "3.10", "3.11"]
 
     steps:
     - uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
+
     - name: Install dependencies
       run: |
         python -m pip install -U pip
         pip install numpy
         pip install 'setuptools' 'wheel' 'numpy>=1.19.0' 'Cython>=0.29.21,<3'  # for classy
         pip install --no-build-isolation classy
+
+    - name: Install package from source
+      if: ${{ env.PUBLISH != 'true' }}
+      run: |
         pip install -U .[test]
         make -C pipe_asdf
+
+    - name: Fetch wheel
+      if: ${{ env.PUBLISH == 'true' }}
+      uses: actions/download-artifact@v3
+      with:
+        name: artifact
+        path: dist
+
+    - name: Install package from wheel
+      if: ${{ env.PUBLISH == 'true' }}
+      run: |
+        pip install $(ls dist/*.whl)[test]
+
     - name: Test Python with pytest
       run: |
         # TODO: set up environment in tox
         export NUMBA_THREADING_LAYER=forksafe
         pytest -v
+
     - name: Test pipe_asdf
+      # no C test client from wheels
+      if: ${{ env.PUBLISH != 'true' }}
       run: |
         ./tests/test_pipe_asdf.sh
 
-  lint:
+  upload:
+    name: PyPI Upload
+    if: ${{ github.event_name == 'release' && github.event.action == 'published' }}
+    needs: [build, tests]
+    environment: pypi
+    permissions:
+      id-token: write
     runs-on: ubuntu-latest
-
     steps:
-    - uses: actions/checkout@v4
-    - name: Set up Python
-      uses: actions/setup-python@v4
+    - uses: actions/download-artifact@v3
       with:
-        python-version: "3.10"
-    - name: Install dependencies
-      run: |
-        python -m pip install -U pip
-        pip install pre-commit
-    - name: Lint with pre-commit
-      run: |
-        pre-commit run --all-files
+        name: artifact
+        path: dist
+
+    - uses: pypa/gh-action-pypi-publish@release/v1
diff --git a/CHANGES.rst b/CHANGES.rst
index 4b3cd80..35443ac 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,9 +1,25 @@
 Changelog
 =========
 
-1.4.0 (2023-??-??)
+2.0.0 (2023-11-15)
 ------------------
 
+abacusutils 2.0 introduces a power spectrum module based on fast, parallelized TSC
+and FFT, including grid interlacing and window compensation, that can output bandpowers,
+Legendre multipoles, (k,mu) wedges, and more.
+
+The set of default installed dependencies has also been reduced to avoid trouble with
+source-only distributions. Use `pip install abacusutils[all]` if you need functionality
+provided by a non-default dependency.
+
+Furthermore, there's a new Zel'dovich Control Variates (ZCV) module, and the HOD module
+has many additions, performance improvements, and bug fixes.
+
+This is a relatively large release, so the version number has been bumped to 2.0.0.
+
+Supported Python versions are 3.8-3.11. Python 3.7 continues to work, although we'll
+drop support if/when this is no longer the case.
+
 New Features
 ~~~~~~~~~~~~
 - HOD now supports a new ELG conformity model
@@ -13,12 +29,15 @@ New Features
 Fixes
 ~~~~~
 - Bump Numba requirement to fixed version and enable parallelism in env calc [#60]
+- Many small bug fixes
 
 Enhancements
 ~~~~~~~~~~~~
 - Add power spectrum to `metadata` module [#69]
 - Upgrade docs and CI [#71]
 - Power spectrum optimization and parallelization [#102]
+- Compute Xi(rp,pi) from P(k) [#115]
+- Update CI test and build infrastructure [#118]
 
 Installation
 ~~~~~~~~~~~~
diff --git a/abacusnbody/metadata/abacussummit.py b/abacusnbody/metadata/abacussummit.py
index 2e507d6..773d4d7 100644
--- a/abacusnbody/metadata/abacussummit.py
+++ b/abacusnbody/metadata/abacussummit.py
@@ -45,7 +45,7 @@ def get_meta(simname, redshift=None):
                     if 'CLASS_power_spectrum' in af_tree[sim]:
                         metadata[sim]['CLASS_power_spectrum'] = af_tree[sim]['CLASS_power_spectrum']
     if simname not in metadata:
-        raise ValueError(f'Simulation "{simname}" is not in metadata file "{metadata_fn}"')
+        raise ValueError(f'Simulation "{simname}" is not in metadata files "{metadata_fns}"')
 
 
     res = dict(metadata[simname]['param'])
@@ -58,7 +58,7 @@ def get_meta(simname, redshift=None):
         if not redshift.startswith('z'):
             redshift = 'z' + redshift
         if redshift not in metadata[simname]['state']:
-            raise ValueError(f'Redshift {redshift} metadata not present for "{simname}" in metadata file "{metadata_fn}')
+            raise ValueError(f'Redshift {redshift} metadata not present for "{simname}" in metadata files "{metadata_fns}')
         res.update(metadata[simname]['state'][redshift])
 
     return res
diff --git a/pyproject.toml b/pyproject.toml
index 21e5bdc..6bea5da 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,9 +1,7 @@
 [build-system]
 requires = [
     "setuptools>=61",
-    "wheel",
     "setuptools_scm>=6.2",
-    "pip>=21.2",
 ]
 build-backend = "setuptools.build_meta"