diff --git a/.github/workflows/build-docs.yml b/.github/workflows/build-docs.yml
deleted file mode 100644
index ecf5673a4..000000000
--- a/.github/workflows/build-docs.yml
+++ /dev/null
@@ -1,57 +0,0 @@
-# This workflow installs the package and builds the docs
-# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
-
-name: build the docs
-
-on:
-  push:
-    branches: [ 'main' ]
-  pull_request:
-    branches: [ '**' ]
-
-jobs:
-  docs:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - name: Set up Python
-        id: setup-python
-        uses: actions/setup-python@v5
-        with:
-          python-version: '3.11'
-
-      - name: Install Pandoc
-        uses: r-lib/actions/setup-pandoc@v2
-
-      #------------------------------
-      #  install & configure poetry
-      #------------------------------
-      - name: Install Poetry
-        uses: snok/install-poetry@v1
-        with:
-          virtualenvs-create: true
-          virtualenvs-in-project: true
-          installer-parallel: true
-
-      - name: Install poetry dynamic versioning plugin
-        run: poetry self add "poetry-dynamic-versioning[plugin]"
-
-      #------------------------------------
-      #  load cached venv if cache exists
-      #------------------------------------
-      - name: Load cached venv
-        id: cached-poetry-dependencies
-        uses: actions/cache@v4
-        with:
-          path: .venv
-          key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}
-
-      #-------------------------------------------
-      #  install root project and build the docs
-      #-------------------------------------------
-      - name: Install library
-        run: poetry install --no-interaction --with docs,optional_plotting,tutorials
-
-      - name: Build the docs
-        run: poetry run make --directory=docs html
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index f38f0fdc2..7b93c82ed 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,8 +1,7 @@
-# Next release
+# Release v2.2.4
 
-- [#870](https://github.com/IAMconsortium/pyam/pull/870) Improve the docs of the `filter()` arguments
-- [#866](https://github.com/IAMconsortium/pyam/pull/866) Support filtering by a `measurand` argument with tuples of
-  variable and units
+Support filtering by a `measurand` argument with tuples of variable and units
+and improve the `filter()` documentation.
 
 # Release v2.2.3