diff --git a/.docker-files/entrypoint.sh b/.docker-files/entrypoint.sh
index c0c86e2..0ef8955 100644
--- a/.docker-files/entrypoint.sh
+++ b/.docker-files/entrypoint.sh
@@ -20,11 +20,11 @@ clone_develop() {
 	friendica_git="${FRIENDICA_VERSION}"
 	addons_git="${FRIENDICA_ADDONS}"
 
-	if echo "$friendica_git" | grep -Eq '^.*\-dev'; then
+	if echo "${friendica_git,,}" | grep -Eq '^.*\-dev'; then
 		friendica_git="develop"
 	fi
 
-	if echo "$addons_git" | grep -Eq '^.*\-dev'; then
+	if echo "{$addons_git,,}" | grep -Eq '^.*\-dev'; then
 		addons_git="develop"
 	fi
 
diff --git a/.travis.yml b/.travis.yml
index 63e6d70..3790f37 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -59,6 +59,9 @@ jobs:
     - env: VERSION=2019.03-dev VARIANT=fpm-alpine ARCH=amd64
     - env: VERSION=2019.03-dev VARIANT=fpm ARCH=amd64
     - env: VERSION=2019.03-dev VARIANT=apache ARCH=amd64
+    - env: VERSION=2019.03-RC VARIANT=fpm-alpine ARCH=amd64
+    - env: VERSION=2019.03-RC VARIANT=fpm ARCH=amd64
+    - env: VERSION=2019.03-RC VARIANT=apache ARCH=amd64
 
     - stage: test images (full)
       env: VERSION=2019.01 VARIANT=fpm-alpine ARCH=amd64
@@ -73,6 +76,12 @@ jobs:
     - env: VERSION=2019.03-dev VARIANT=fpm ARCH=i386
     - env: VERSION=2019.03-dev VARIANT=apache ARCH=amd64
     - env: VERSION=2019.03-dev VARIANT=apache ARCH=i386
+    - env: VERSION=2019.03-RC VARIANT=fpm-alpine ARCH=amd64
+    - env: VERSION=2019.03-RC VARIANT=fpm-alpine ARCH=i386
+    - env: VERSION=2019.03-RC VARIANT=fpm ARCH=amd64
+    - env: VERSION=2019.03-RC VARIANT=fpm ARCH=i386
+    - env: VERSION=2019.03-RC VARIANT=apache ARCH=amd64
+    - env: VERSION=2019.03-RC VARIANT=apache ARCH=i386
 
     - stage: deploy
       env: SCRIPT=build_and_push.sh
diff --git a/2019.01/apache/entrypoint.sh b/2019.01/apache/entrypoint.sh
index c0c86e2..0ef8955 100644
--- a/2019.01/apache/entrypoint.sh
+++ b/2019.01/apache/entrypoint.sh
@@ -20,11 +20,11 @@ clone_develop() {
 	friendica_git="${FRIENDICA_VERSION}"
 	addons_git="${FRIENDICA_ADDONS}"
 
-	if echo "$friendica_git" | grep -Eq '^.*\-dev'; then
+	if echo "${friendica_git,,}" | grep -Eq '^.*\-dev'; then
 		friendica_git="develop"
 	fi
 
-	if echo "$addons_git" | grep -Eq '^.*\-dev'; then
+	if echo "{$addons_git,,}" | grep -Eq '^.*\-dev'; then
 		addons_git="develop"
 	fi
 
diff --git a/2019.01/fpm-alpine/entrypoint.sh b/2019.01/fpm-alpine/entrypoint.sh
index c0c86e2..0ef8955 100644
--- a/2019.01/fpm-alpine/entrypoint.sh
+++ b/2019.01/fpm-alpine/entrypoint.sh
@@ -20,11 +20,11 @@ clone_develop() {
 	friendica_git="${FRIENDICA_VERSION}"
 	addons_git="${FRIENDICA_ADDONS}"
 
-	if echo "$friendica_git" | grep -Eq '^.*\-dev'; then
+	if echo "${friendica_git,,}" | grep -Eq '^.*\-dev'; then
 		friendica_git="develop"
 	fi
 
-	if echo "$addons_git" | grep -Eq '^.*\-dev'; then
+	if echo "{$addons_git,,}" | grep -Eq '^.*\-dev'; then
 		addons_git="develop"
 	fi
 
diff --git a/2019.01/fpm/entrypoint.sh b/2019.01/fpm/entrypoint.sh
index c0c86e2..0ef8955 100644
--- a/2019.01/fpm/entrypoint.sh
+++ b/2019.01/fpm/entrypoint.sh
@@ -20,11 +20,11 @@ clone_develop() {
 	friendica_git="${FRIENDICA_VERSION}"
 	addons_git="${FRIENDICA_ADDONS}"
 
-	if echo "$friendica_git" | grep -Eq '^.*\-dev'; then
+	if echo "${friendica_git,,}" | grep -Eq '^.*\-dev'; then
 		friendica_git="develop"
 	fi
 
-	if echo "$addons_git" | grep -Eq '^.*\-dev'; then
+	if echo "{$addons_git,,}" | grep -Eq '^.*\-dev'; then
 		addons_git="develop"
 	fi
 
diff --git a/2019.03-dev/apache/entrypoint.sh b/2019.03-dev/apache/entrypoint.sh
index c0c86e2..0ef8955 100644
--- a/2019.03-dev/apache/entrypoint.sh
+++ b/2019.03-dev/apache/entrypoint.sh
@@ -20,11 +20,11 @@ clone_develop() {
 	friendica_git="${FRIENDICA_VERSION}"
 	addons_git="${FRIENDICA_ADDONS}"
 
-	if echo "$friendica_git" | grep -Eq '^.*\-dev'; then
+	if echo "${friendica_git,,}" | grep -Eq '^.*\-dev'; then
 		friendica_git="develop"
 	fi
 
-	if echo "$addons_git" | grep -Eq '^.*\-dev'; then
+	if echo "{$addons_git,,}" | grep -Eq '^.*\-dev'; then
 		addons_git="develop"
 	fi
 
diff --git a/2019.03-dev/fpm-alpine/entrypoint.sh b/2019.03-dev/fpm-alpine/entrypoint.sh
index c0c86e2..0ef8955 100644
--- a/2019.03-dev/fpm-alpine/entrypoint.sh
+++ b/2019.03-dev/fpm-alpine/entrypoint.sh
@@ -20,11 +20,11 @@ clone_develop() {
 	friendica_git="${FRIENDICA_VERSION}"
 	addons_git="${FRIENDICA_ADDONS}"
 
-	if echo "$friendica_git" | grep -Eq '^.*\-dev'; then
+	if echo "${friendica_git,,}" | grep -Eq '^.*\-dev'; then
 		friendica_git="develop"
 	fi
 
-	if echo "$addons_git" | grep -Eq '^.*\-dev'; then
+	if echo "{$addons_git,,}" | grep -Eq '^.*\-dev'; then
 		addons_git="develop"
 	fi
 
diff --git a/2019.03-dev/fpm/entrypoint.sh b/2019.03-dev/fpm/entrypoint.sh
index c0c86e2..0ef8955 100644
--- a/2019.03-dev/fpm/entrypoint.sh
+++ b/2019.03-dev/fpm/entrypoint.sh
@@ -20,11 +20,11 @@ clone_develop() {
 	friendica_git="${FRIENDICA_VERSION}"
 	addons_git="${FRIENDICA_ADDONS}"
 
-	if echo "$friendica_git" | grep -Eq '^.*\-dev'; then
+	if echo "${friendica_git,,}" | grep -Eq '^.*\-dev'; then
 		friendica_git="develop"
 	fi
 
-	if echo "$addons_git" | grep -Eq '^.*\-dev'; then
+	if echo "{$addons_git,,}" | grep -Eq '^.*\-dev'; then
 		addons_git="develop"
 	fi
 
diff --git a/generate-stackbrew-library.sh b/generate-stackbrew-library.sh
index d40ee6a..74b5978 100755
--- a/generate-stackbrew-library.sh
+++ b/generate-stackbrew-library.sh
@@ -2,7 +2,7 @@
 set -Eeuo pipefail
 
 declare -A release_channel=(
-	[production]='2018.01'
+	[production]='2019.01'
 	[stable]='2019.01'
 	[latest]='2019.01'
 )
diff --git a/update.sh b/update.sh
index f8b4be0..e4b864c 100755
--- a/update.sh
+++ b/update.sh
@@ -41,6 +41,7 @@ variants=(
 )
 
 versions=(
+	2019.03-RC
     2019.03-dev
     2019.01
 )
@@ -60,7 +61,7 @@ function create_variant() {
 
     # Check which installation typ we need. If develop, the source will get downloaded by git.
     install_type='stable'
-    if [[ "$1" == *-dev ]] || [[ "$1" == *-rc ]]; then
+    if [[ "${1,,}" == *-dev ]] || [[ "${1,,}" == *-rc ]]; then
       install_type='develop'
     fi