diff --git a/.github/workflows/development.yaml b/.github/workflows/development.yaml
index f793e9e..78b1e74 100644
--- a/.github/workflows/development.yaml
+++ b/.github/workflows/development.yaml
@@ -8,6 +8,12 @@ jobs:
     strategy:
       matrix:
         include:
+          - distro: alpine
+            conda_ver: 4.12.0
+            py_ver: '3.10'
+            platform: linux/amd64
+            py_label: py39_
+            conda_md5: 4e2f31e0b2598634c80daa12e4981647
           - distro: alpine
             conda_ver: 4.10.3
             py_ver: 3.9
@@ -31,6 +37,11 @@ jobs:
             py_ver: 3.6
             platform: linux/amd64
             conda_md5: a946ea1d0c4a642ddf0c3a26a18bb16d
+          - distro: debian
+            conda_ver: 4.12.0
+            py_ver: '3.10'
+            platform: linux/amd64
+            py_label: py39_
           - distro: debian
             conda_ver: 4.10.3
             py_ver: 3.9
@@ -116,6 +127,11 @@ jobs:
     strategy:
       matrix:
         include:
+          - distro: alpine
+            conda_ver: 4.12.0
+            py_ver: '3.10'
+            platform: linux/amd64
+            package_manager: apk
           - distro: alpine
             conda_ver: 4.10.3
             py_ver: 3.9
@@ -136,6 +152,11 @@ jobs:
             py_ver: 3.6
             platform: linux/amd64
             package_manager: apk
+          - distro: debian
+            conda_ver: 4.12.0
+            py_ver: '3.10'
+            platform: linux/amd64
+            package_manager: apt
           - distro: debian
             conda_ver: 4.10.3
             py_ver: 3.9
@@ -198,12 +219,22 @@ jobs:
           docker load < "${CONDA_VER}-py${PY_VER}-${DISTRO}-${PLATFORM_TAG}.tar.gz"
           tests/main.sh
   publish:
-    if: github.event_name == 'push' && github.ref == 'refs/heads/master'
+    if: |
+      github.event_name == 'push' &&
+      github.ref == 'refs/heads/master' &&
+      (
+        github.repository_owner == 'datajoint' ||
+        github.repository_owner == 'datajoint-company'
+      )
     needs: test
     runs-on: ubuntu-latest
     strategy:
       matrix:
         include:
+          - distro: alpine
+            conda_ver: 4.12.0
+            py_ver: '3.10'
+            platform: linux/amd64
           - distro: alpine
             conda_ver: 4.10.3
             py_ver: 3.9
@@ -220,6 +251,10 @@ jobs:
             conda_ver: 4.5.4
             py_ver: 3.6
             platform: linux/amd64
+          - distro: debian
+            conda_ver: 4.12.0
+            py_ver: '3.10'
+            platform: linux/amd64
           - distro: debian
             conda_ver: 4.10.3
             py_ver: 3.9
@@ -283,7 +318,13 @@ jobs:
                   && docker push "${IMAGE}:latest" \
               || echo "skipping 'latest' tag..."
   publish-docs:
-    if: github.event_name == 'push' && github.ref == 'refs/heads/master'
+    if: |
+      github.event_name == 'push' &&
+      github.ref == 'refs/heads/master' &&
+      (
+        github.repository_owner == 'datajoint' ||
+        github.repository_owner == 'datajoint-company'
+      )
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
diff --git a/config/.env b/config/.env
index c28b32e..e7a34d3 100644
--- a/config/.env
+++ b/config/.env
@@ -1,5 +1,10 @@
 ## build
 
+# CONDA_VER=4.12.0
+# PY_VER='3.10'
+# PY_LABEL=py39_
+# CONDA_MD5=4e2f31e0b2598634c80daa12e4981647
+
 CONDA_VER=4.10.3
 PY_VER=3.9
 PY_LABEL=py39_
diff --git a/dist/alpine/Dockerfile b/dist/alpine/Dockerfile
index 4db2682..c188832 100644
--- a/dist/alpine/Dockerfile
+++ b/dist/alpine/Dockerfile
@@ -82,6 +82,8 @@ RUN \
 	apk add /tmp/glibc-i18n-2.25-r0.apk && \
 	rm /tmp/glibc-i18n-2.25-r0.apk && \
 	/usr/glibc-compat/bin/localedef -i en_US -c -f UTF-8 en_US.UTF-8 && \
+	# Remove after 4.12.0 version releases
+	[ "${CONDA_VER}" != "4.12.0" ] || CONDA_VER="4.11.0" && \
 	# Current latest Miniconda3 release
 	wget --quiet $(echo "https://repo.anaconda.com/miniconda\
 		/Miniconda3-${PY_LABEL}${CONDA_VER}-Linux-x86_64.sh" | \
@@ -111,6 +113,7 @@ RUN \
 	umask u+rwx,g+rwx,o-rwx && \
 	conda config --add channels conda-forge && \
 	conda config --set auto_update_conda False && \
+	[ "${PY_VER}" != "3.10" ] || conda install python=${PY_VER} conda=${CONDA_VER} && \
 	[ "${PY_VER}" != "3.6" ] || sed -i \
 		$(echo "s@version_relation_re = re.compile(r'(==|!=|<=|>=|<|>)(?!\[=<>!\])\
 			(\S\+)$')@version_relation_re = re.compile(r'(==|!=|<=|>=|<|>|=)\
diff --git a/dist/debian/Dockerfile b/dist/debian/Dockerfile
index cf3e343..b761446 100644
--- a/dist/debian/Dockerfile
+++ b/dist/debian/Dockerfile
@@ -36,6 +36,8 @@ RUN \
 	# bzip2 ca-certificates libglib2.0-0 libxext6 libsm6 \
 	# 	libxrender1 git mercurial subversion && \
 	apt-get clean && \
+	# Remove after 4.12.0 version releases
+	[ "${CONDA_VER}" != "4.12.0" ] || CONDA_VER="4.11.0" && \
 	wget --quiet $(echo "https://repo.anaconda.com/miniconda\
 		/Miniconda3-${PY_LABEL}${CONDA_VER}-Linux-$(uname -m).sh" | \
 		tr -d "\n" | tr -d "\t") -O ~/miniconda.sh && \
@@ -56,6 +58,7 @@ RUN \
 	umask u+rwx,g+rwx,o-rwx && \
 	conda config --add channels conda-forge && \
 	conda config --set auto_update_conda False && \
+	[ "${PY_VER}" != "3.10" ] || conda install python=${PY_VER} conda=${CONDA_VER} && \
 	[ "${PY_VER}" != "3.6" ] || sed -i \
 		$(echo "s@version_relation_re = re.compile(r'(==|!=|<=|>=|<|>)(?!\[=<>!\])\
 			(\S\+)$')@version_relation_re = re.compile(r'(==|!=|<=|>=|<|>|=)\
diff --git a/tests/main.sh b/tests/main.sh
index 6f56415..692384e 100755
--- a/tests/main.sh
+++ b/tests/main.sh
@@ -160,7 +160,9 @@ IMAGE=$(echo $REF | awk -F':' '{print $1}')
 SHELL_CMD_TEMPLATE="docker run --rm -i \$SHELL_CMD_FLAGS $REF \
 	$(docker inspect "$REF" --format '{{join .Config.Cmd " "}}') -c"
 # Determine reference size
-if [ $DISTRO == alpine ] && [ $PY_VER == '3.9' ] && [ $PLATFORM == 'linux/amd64' ]; then
+if [ $DISTRO == alpine ] && [ $PY_VER == '3.10' ] && [ $PLATFORM == 'linux/amd64' ]; then
+	SIZE_LIMIT=478
+elif [ $DISTRO == alpine ] && [ $PY_VER == '3.9' ] && [ $PLATFORM == 'linux/amd64' ]; then
 	SIZE_LIMIT=240
 elif [ $DISTRO == alpine ] && [ $PY_VER == '3.8' ] && [ $PLATFORM == 'linux/amd64' ]; then
 	SIZE_LIMIT=188
@@ -168,6 +170,8 @@ elif [ $DISTRO == alpine ] && [ $PY_VER == '3.7' ] && [ $PLATFORM == 'linux/amd6
 	SIZE_LIMIT=196
 elif [ $DISTRO == alpine ] && [ $PY_VER == '3.6' ] && [ $PLATFORM == 'linux/amd64' ]; then
 	SIZE_LIMIT=155
+elif [ $DISTRO == debian ] && [ $PY_VER == '3.10' ] && [ $PLATFORM == 'linux/amd64' ]; then
+	SIZE_LIMIT=572
 elif [ $DISTRO == debian ] && [ $PY_VER == '3.9' ] && [ $PLATFORM == 'linux/amd64' ]; then
 	SIZE_LIMIT=311 #481
 elif [ $DISTRO == debian ] && [ $PY_VER == '3.8' ] && [ $PLATFORM == 'linux/amd64' ]; then