diff --git a/CHANGELOG.md b/CHANGELOG.md
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+# Base images
+
+Initial release containing the following base images:
+
+* `ghcr.io/openpipelines-bio/base/python_3_10:1.0.0`, a Python 3.10 slim image with the following extra packages preinstalled:
+  - Apt: `procps`
+  - Python: `anndata~=0.8.0`, `mudata~=0.2.0`, `scanpy~=1.9.2`
+
+* `ghcr.io/openpipelines-bio/base/r2u_22_04:1.0.0`, an R2U 22.04 image with the following extra packages preinstalled:
+  - Apt: `python3` and `procps`
+  - Python: `anndata~=0.8.0`, `mudata~=0.2.0`, `scanpy~=1.9.2`
+  - R: `anndata`
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 # Base images
 
-Repository for docker images for openpipelines-bio.
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+Repository for base Docker images for openpipelines-bio.
+
+This repository currently contains the following images:
+
+* [`ghcr.io/openpipelines-bio/base/python_3_10`](src/python_3_10), a Python 3.10 slim image with anndata and mudata preinstalled.
+* [`ghcr.io/openpipelines-bio/base/r2u_22_04`](src/r2u_22_04), an R2U 22.04 image with Python, anndata and mudata preinstalled.
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diff --git a/src/python_3_10/CHANGELOG.md b/src/python_3_10/CHANGELOG.md
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-# `ghcr.io/openpipelines-bio/base/python_3_10:1.0.0`
-
-* Initial release. An Python 3.10 image with the following packages installed:
-  - `anndata~=0.8.0`
-  - `pyyaml`
-  - `requests`
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diff --git a/src/r2u_22_04/CHANGELOG.md b/src/r2u_22_04/CHANGELOG.md
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-# `ghcr.io/openpipelines-bio/base/r2u_22_04:1.0.0`
-
-* Initial release. An R2U 22.04 image with the following packages installed:
-  - R release
-  - R packages: remotes, anndata and BiocManager
-  - Python 3.10
-  - Python packages:
-    * `anndata~=0.8.0`
-    * `mudata~=0.2.0`
-    * `scanpy~=1.9.2`
-  - Apt packages: procps
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