diff --git a/.github/workflows/source_build.yml b/.github/workflows/source_build.yml
index 4f97849a152..f9499e3687b 100644
--- a/.github/workflows/source_build.yml
+++ b/.github/workflows/source_build.yml
@@ -6,7 +6,11 @@ on:
     - cron: '0 0 * * 0'
 
 jobs:
-  buil:
+  build:
+    strategy:
+      matrix:
+        build_bf: [false]
+        build_zarr: [true]
     name: Build OMERO from source
     runs-on: ubuntu-20.04
     steps:
@@ -16,5 +20,22 @@ jobs:
         run: |
           pip install flake8
           flake8 .
-      - name: Build
+      - name: install dependencies
+        run: |
+          sudo apt-get install -y git maven wget
+      - name: Build Bio-Formats
+        if: matrix.build_bf
+        run: |
+          git clone https://github.com/ome/bioformats /tmp/bioformats --depth 1
+          cd /tmp/bioformats
+          mvn install -DskipTests
+      - name: Build ZarrReader
+        if: matrix.build_zarr
+        run: |
+          git clone -b dependency-updates https://github.com/dgault/ZarrReader /tmp/ZarrReader
+          cd /tmp/ZarrReader
+          mvn install -DskipTests
+      - name: Build OMERO
         run: ./build.py
+      - name: Rebuild
+        run: ./build.py clean && ./build.py
diff --git a/etc/omero.properties b/etc/omero.properties
index b0a06895f69..bec594ab64d 100644
--- a/etc/omero.properties
+++ b/etc/omero.properties
@@ -208,10 +208,10 @@ versions.omero-scripts-url=${versions.omero-pypi}
 ###
 
 ## Internal dependencies
-versions.omero-blitz=5.5.10
-versions.omero-common-test=5.5.9
-versions.omero-gateway=5.6.9
+versions.omero-blitz=5.5.12
+versions.omero-common-test=5.5.10
+versions.omero-gateway=5.6.10
 versions.omero-scripts=5.6.2
-versions.OMEZarrReader=0.2.0
+versions.OMEZarrReader=0.2.1-SNAPSHOT
 ## Global overrides, if empty ignored
 versions.bioformats=
diff --git a/history.rst b/history.rst
index 57317cff23a..2b7db513148 100644
--- a/history.rst
+++ b/history.rst
@@ -5,6 +5,34 @@
 OMERO version history
 =====================
 
+5.6.5 (June 2022)
+------------------
+
+This release includes the following upgrade of the OMERO.server Java components:
+
+- omero-gateway-java 5.6.10
+- omero-blitz 5.5.12
+- omero-server 5.6.4
+- omero-renderer 5.5.10
+- omero-romio 5.7.0
+- omero-common 5.5.10
+- omero-model 5.6.7
+
+
+Improvements include:
+
+-  a new server configuration allowing to control the pyramidal requirement for floating-point images
+-  an upgrade of Bio-Formats to version 6.10.0
+
+**Note:** This upgrade will invalidate the Bio-Formats Memoizer cache. Please
+see the upgrade guide for further information.
+
+This version of the OMERO.server has been tested with:
+
+- OMERO.py 5.11.2
+- OMERO.web 5.14.1
+- OMERO.dropbox 5.6.2
+
 5.6.4 (April 2022)
 ------------------