diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6ef9bcd..3046198 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,21 @@
 
 ***
 
+### Release 24.09
+
+This is the first `G3v6` release.
+However, it's a maintenance release and the version number has been increased just to keep it synchronized with the **sibling project** [accetto/ubuntu-vnc-xfce-g3][accetto-github-ubuntu-vnc-xfce-g3].
+The previous version `G3v5` will still be available in this repository as the branch `archived-generation-g3v5`.
+
+Changes:
+
+- Default user `headless:headless (1000:1000)` has been changed to `headless:headless (1001:1001)`.
+  - This change has been only done to keep the containers uniform with the ones from the sibling `Ubuntu` projects.
+- The directive `syntax=docker/dockerfile:experimental` has been removed from all Dockerfiles.
+- The `noVNC` starting page has been updated in all images.
+  - If no `noVNC Client` is selected, then the `Full Client` will start automatically in 10 seconds.
+- The hook script `release_of` has been updated with the intention to report more helpful building errors.
+
 ### Release 24.03.1
 
 This is a fix release, correcting an unfortunate copy-and-paste error in the files `Dockerfile.xfce.nodejs`, `Dockerfile.xfce.nvm` and `Dockerfile.xfce.python`.
diff --git a/README.md b/README.md
index dda3dc1..d4c9670 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 ## Project `accetto/headless-coding-g3`
 
-Version: G3v5
+Version: G3v6
 
 ***
 
@@ -95,14 +95,18 @@ The **first generation** (G1) contains the GitHub repository [accetto/ubuntu-vnc
 
 ### Project versions
 
-This file describes the **fifth version** (G3v5) of the project.
+This file describes the **sixth version** (G3v6) of the project.
+
+However, also this version keeps evolving.
+Please check the [CHANGELOG][this-changelog] for more information about the changes.
+
+The previous versions are still available in this **GitHub** repository as the branches named as `archived-generation-g3v{d}`.
 
 *Remark*: The version number `G3v4` has been skipped, to align the numbering with the **sibling project** [accetto/ubuntu-vnc-xfce-g3][accetto-github-ubuntu-vnc-xfce-g3].
 
-The **second version** (G3v2) and the **first version** (G3v1, or simply G3) will still be available in this GitHub repository as the branches `archived-generation-g3v2-ubuntu` and `archived-generation-g3v1`.
-The **third version** (G3v3) was not archived, because the changes are minor.
+The main purpose of the version `G3v6` is to keep the project and the images uniform with the ones from the sibling `Ubuntu` projects.
 
-The version `G3v5` brings only one significant change comparing to the previous version `G3v3` and it also introduces the [portable Visual Studio Code][vscode-portable] installation.
+The version `G3v5` has brought only one significant change comparing to the previous version `G3v3` and it also introduces the [portable Visual Studio Code][vscode-portable] installation.
 
 - The updated script `set_user_permissions.sh`, which is part of Dockerfiles, skips the hidden files and directories now.
 It generally should not have any unwanted side effects, but it may make a difference in some scenarios, hence the version increase.
diff --git a/docker/Dockerfile.xfce.nodejs b/docker/Dockerfile.xfce.nodejs
index bc2ccd7..ceed33b 100644
--- a/docker/Dockerfile.xfce.nodejs
+++ b/docker/Dockerfile.xfce.nodejs
@@ -18,7 +18,7 @@ ARG ARG_SUDO_INITIAL_PW=headless
 ### stage_cache
 ###############
 
-FROM ${BASEIMAGE}:${BASETAG} as stage_cache
+FROM ${BASEIMAGE}:${BASETAG} AS stage_cache
 
 ### refresh the 'apt' cache
 RUN rm -f /etc/apt/apt.conf.d/docker-clean ; \
@@ -38,7 +38,7 @@ RUN \
 ### stage_essentials
 ####################
 
-FROM ${BASEIMAGE}:${BASETAG} as stage_essentials
+FROM ${BASEIMAGE}:${BASETAG} AS stage_essentials
 
 RUN \
     --mount=type=cache,from=stage_cache,sharing=locked,source=/var/cache/apt,target=/var/cache/apt \
@@ -59,7 +59,7 @@ RUN \
 ### stage_xserver
 #################
 
-FROM stage_essentials as stage_xserver
+FROM stage_essentials AS stage_xserver
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -81,7 +81,7 @@ RUN \
 ### stage_xfce
 ##############
 
-FROM stage_xserver as stage_xfce
+FROM stage_xserver AS stage_xfce
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV FEATURES_BUILD_SLIM_XFCE="${ARG_APT_NO_RECOMMENDS:+1}"
@@ -98,7 +98,7 @@ RUN \
 ### stage_tools
 ###############
 
-FROM stage_xfce as stage_tools
+FROM stage_xfce AS stage_tools
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_FEATURES_SCREENSHOOTING
 ARG ARG_FEATURES_THUMBNAILING
@@ -124,7 +124,7 @@ RUN \
 ### stage_vnc
 #############
 
-FROM stage_tools as stage_vnc
+FROM stage_tools AS stage_vnc
 ARG ARG_VNC_COL_DEPTH
 ARG ARG_VNC_DISPLAY
 ARG ARG_VNC_PORT
@@ -165,7 +165,7 @@ EXPOSE "${VNC_PORT}"
 ### stage_novnc
 ###############
 
-FROM stage_vnc as stage_novnc
+FROM stage_vnc AS stage_novnc
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_NOVNC_PORT
 ARG ARG_NOVNC_VERSION
@@ -207,10 +207,12 @@ RUN echo \
     <head>\n\
         <title>noVNC</title>\n\
         <meta charset=\"utf-8\"/>\n\
+        <meta http-equiv=\"refresh\" content=\"10; url='vnc.html'\" />\n\
     </head>\n\
     <body>\n\
-        <p><a href=\"vnc_lite.html\">noVNC Lite Client</a></p>\n\
-        <p><a href=\"vnc.html\">noVNC Full Client</a></p>\n\
+    <p><a href=\"vnc_lite.html\">noVNC Lite Client</a></p>\n\
+    <p><a href=\"vnc.html\">noVNC Full Client</a></p>\n\
+    <p>Full Client will start automatically in 10 seconds...</p>\n\
     </body>\n\
 </html>" \
 > "${NOVNC_HOME}"/index.html
@@ -222,7 +224,7 @@ EXPOSE "${NOVNC_PORT}"
 ### merge_stage_vnc
 ###################
 
-FROM ${ARG_MERGE_STAGE_VNC_BASE} as merge_stage_vnc
+FROM ${ARG_MERGE_STAGE_VNC_BASE} AS merge_stage_vnc
 ARG ARG_HEADLESS_USER_ID
 ARG ARG_HEADLESS_USER_NAME
 ARG ARG_HEADLESS_USER_GROUP_ID
@@ -245,7 +247,7 @@ COPY ./src/home "${HOME}"/
 ### stage_chromium
 ##################
 
-FROM merge_stage_vnc as stage_chromium
+FROM merge_stage_vnc AS stage_chromium
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -266,7 +268,7 @@ COPY ./xfce-chromium/src/home/readme*.md "${HOME}"/
 ### stage_firefox
 #################
 
-FROM merge_stage_vnc as stage_firefox
+FROM merge_stage_vnc AS stage_firefox
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -286,7 +288,7 @@ COPY ./xfce-firefox/src/home/Desktop "${HOME}"/Desktop/
 ### stage_firefox_plus
 ### ##################
 
-FROM stage_firefox as stage_firefox_plus
+FROM stage_firefox AS stage_firefox_plus
 
 ENV FEATURES_FIREFOX_PLUS=1
 
@@ -305,14 +307,14 @@ RUN \
 ### merge_stage_browser
 #######################
 
-FROM ${ARG_MERGE_STAGE_BROWSER_BASE} as merge_stage_browser
+FROM ${ARG_MERGE_STAGE_BROWSER_BASE} AS merge_stage_browser
 
 
 ### ############
 ### stage-nodejs
 ### ############
 
-FROM merge_stage_browser as stage_nodejs
+FROM merge_stage_browser AS stage_nodejs
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_NODEJS_PORT
 ARG ARG_NODEJS_DISTRO
@@ -364,7 +366,7 @@ EXPOSE "${NODEJS_PORT}"
 ### stage_vscode
 ################
 
-FROM stage_nodejs as stage_vscode
+FROM stage_nodejs AS stage_vscode
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_VSCODE_DISTRO
 ARG ARG_VSCODE_VERSION
@@ -416,7 +418,7 @@ RUN \
 ### FINAL STAGE
 ###############
 
-FROM ${ARG_FINAL_STAGE_BASE} as stage_final
+FROM ${ARG_FINAL_STAGE_BASE} AS stage_final
 ARG ARG_FEATURES_OVERRIDING_ENVV
 ARG ARG_SUDO_INITIAL_PW
 
@@ -463,7 +465,7 @@ ENTRYPOINT [ "/usr/bin/tini", "--", "/dockerstartup/startup.sh" ]
 ### METADATA STAGE
 ##################
 
-FROM stage_final as stage_metadata
+FROM stage_final AS stage_metadata
 ARG ARG_CREATED
 ARG ARG_DOCKER_TAG
 ARG ARG_VCS_REF
diff --git a/docker/Dockerfile.xfce.nvm b/docker/Dockerfile.xfce.nvm
index 75a8654..8453505 100644
--- a/docker/Dockerfile.xfce.nvm
+++ b/docker/Dockerfile.xfce.nvm
@@ -18,7 +18,7 @@ ARG ARG_SUDO_INITIAL_PW=headless
 ### stage_cache
 ###############
 
-FROM ${BASEIMAGE}:${BASETAG} as stage_cache
+FROM ${BASEIMAGE}:${BASETAG} AS stage_cache
 
 ### refresh the 'apt' cache
 RUN rm -f /etc/apt/apt.conf.d/docker-clean ; \
@@ -38,7 +38,7 @@ RUN \
 ### stage_essentials
 ####################
 
-FROM ${BASEIMAGE}:${BASETAG} as stage_essentials
+FROM ${BASEIMAGE}:${BASETAG} AS stage_essentials
 
 RUN \
     --mount=type=cache,from=stage_cache,sharing=locked,source=/var/cache/apt,target=/var/cache/apt \
@@ -59,7 +59,7 @@ RUN \
 ### stage_xserver
 #################
 
-FROM stage_essentials as stage_xserver
+FROM stage_essentials AS stage_xserver
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -81,7 +81,7 @@ RUN \
 ### stage_xfce
 ##############
 
-FROM stage_xserver as stage_xfce
+FROM stage_xserver AS stage_xfce
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV FEATURES_BUILD_SLIM_XFCE="${ARG_APT_NO_RECOMMENDS:+1}"
@@ -98,7 +98,7 @@ RUN \
 ### stage_tools
 ###############
 
-FROM stage_xfce as stage_tools
+FROM stage_xfce AS stage_tools
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_FEATURES_SCREENSHOOTING
 ARG ARG_FEATURES_THUMBNAILING
@@ -127,7 +127,7 @@ RUN \
 ### stage_vnc
 #############
 
-FROM stage_tools as stage_vnc
+FROM stage_tools AS stage_vnc
 ARG ARG_VNC_COL_DEPTH
 ARG ARG_VNC_DISPLAY
 ARG ARG_VNC_PORT
@@ -168,7 +168,7 @@ EXPOSE "${VNC_PORT}"
 ### stage_novnc
 ###############
 
-FROM stage_vnc as stage_novnc
+FROM stage_vnc AS stage_novnc
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_NOVNC_PORT
 ARG ARG_NOVNC_VERSION
@@ -210,10 +210,12 @@ RUN echo \
     <head>\n\
         <title>noVNC</title>\n\
         <meta charset=\"utf-8\"/>\n\
+        <meta http-equiv=\"refresh\" content=\"10; url='vnc.html'\" />\n\
     </head>\n\
     <body>\n\
-        <p><a href=\"vnc_lite.html\">noVNC Lite Client</a></p>\n\
-        <p><a href=\"vnc.html\">noVNC Full Client</a></p>\n\
+    <p><a href=\"vnc_lite.html\">noVNC Lite Client</a></p>\n\
+    <p><a href=\"vnc.html\">noVNC Full Client</a></p>\n\
+    <p>Full Client will start automatically in 10 seconds...</p>\n\
     </body>\n\
 </html>" \
 > "${NOVNC_HOME}"/index.html
@@ -225,7 +227,7 @@ EXPOSE "${NOVNC_PORT}"
 ### merge_stage_vnc
 ###################
 
-FROM ${ARG_MERGE_STAGE_VNC_BASE} as merge_stage_vnc
+FROM ${ARG_MERGE_STAGE_VNC_BASE} AS merge_stage_vnc
 ARG ARG_HEADLESS_USER_ID
 ARG ARG_HEADLESS_USER_NAME
 ARG ARG_HEADLESS_USER_GROUP_ID
@@ -248,7 +250,7 @@ COPY ./src/home "${HOME}"/
 ### stage_chromium
 ##################
 
-FROM merge_stage_vnc as stage_chromium
+FROM merge_stage_vnc AS stage_chromium
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -269,7 +271,7 @@ COPY ./xfce-chromium/src/home/readme*.md "${HOME}"/
 ### stage_firefox
 #################
 
-FROM merge_stage_vnc as stage_firefox
+FROM merge_stage_vnc AS stage_firefox
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -289,7 +291,7 @@ COPY ./xfce-firefox/src/home/Desktop "${HOME}"/Desktop/
 ### stage_firefox_plus
 ### ##################
 
-FROM stage_firefox as stage_firefox_plus
+FROM stage_firefox AS stage_firefox_plus
 
 ENV FEATURES_FIREFOX_PLUS=1
 
@@ -308,14 +310,14 @@ RUN \
 ### merge_stage_browser
 #######################
 
-FROM ${ARG_MERGE_STAGE_BROWSER_BASE} as merge_stage_browser
+FROM ${ARG_MERGE_STAGE_BROWSER_BASE} AS merge_stage_browser
 
 
 #############
 ### stage_nvm
 #############
 
-FROM merge_stage_browser as stage_nvm
+FROM merge_stage_browser AS stage_nvm
 ARG ARG_NVM_VERSION
 ARG ARG_NODEJS_PORT
 
@@ -346,7 +348,7 @@ USER 0
 ### stage_vscode
 ################
 
-FROM stage_nvm as stage_vscode
+FROM stage_nvm AS stage_vscode
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_VSCODE_DISTRO
 ARG ARG_VSCODE_VERSION
@@ -398,7 +400,7 @@ RUN \
 ### FINAL STAGE
 ###############
 
-FROM ${ARG_FINAL_STAGE_BASE} as stage_final
+FROM ${ARG_FINAL_STAGE_BASE} AS stage_final
 ARG ARG_FEATURES_OVERRIDING_ENVV
 ARG ARG_SUDO_INITIAL_PW
 
@@ -445,7 +447,7 @@ ENTRYPOINT [ "/usr/bin/tini", "--", "/dockerstartup/startup.sh" ]
 ### METADATA STAGE
 ##################
 
-FROM stage_final as stage_metadata
+FROM stage_final AS stage_metadata
 ARG ARG_CREATED
 ARG ARG_DOCKER_TAG
 ARG ARG_VCS_REF
diff --git a/docker/Dockerfile.xfce.postman b/docker/Dockerfile.xfce.postman
index 8ced16a..f505dee 100644
--- a/docker/Dockerfile.xfce.postman
+++ b/docker/Dockerfile.xfce.postman
@@ -18,7 +18,7 @@ ARG ARG_SUDO_INITIAL_PW=headless
 ### stage_cache
 ###############
 
-FROM ${BASEIMAGE}:${BASETAG} as stage_cache
+FROM ${BASEIMAGE}:${BASETAG} AS stage_cache
 
 ### refresh the 'apt' cache
 RUN rm -f /etc/apt/apt.conf.d/docker-clean ; \
@@ -38,7 +38,7 @@ RUN \
 ### stage_essentials
 ####################
 
-FROM ${BASEIMAGE}:${BASETAG} as stage_essentials
+FROM ${BASEIMAGE}:${BASETAG} AS stage_essentials
 
 RUN \
     --mount=type=cache,from=stage_cache,sharing=locked,source=/var/cache/apt,target=/var/cache/apt \
@@ -59,7 +59,7 @@ RUN \
 ### stage_xserver
 #################
 
-FROM stage_essentials as stage_xserver
+FROM stage_essentials AS stage_xserver
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -81,7 +81,7 @@ RUN \
 ### stage_xfce
 ##############
 
-FROM stage_xserver as stage_xfce
+FROM stage_xserver AS stage_xfce
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV FEATURES_BUILD_SLIM_XFCE="${ARG_APT_NO_RECOMMENDS:+1}"
@@ -98,7 +98,7 @@ RUN \
 ### stage_tools
 ###############
 
-FROM stage_xfce as stage_tools
+FROM stage_xfce AS stage_tools
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_FEATURES_SCREENSHOOTING
 ARG ARG_FEATURES_THUMBNAILING
@@ -124,7 +124,7 @@ RUN \
 ### stage_vnc
 #############
 
-FROM stage_tools as stage_vnc
+FROM stage_tools AS stage_vnc
 ARG ARG_VNC_COL_DEPTH
 ARG ARG_VNC_DISPLAY
 ARG ARG_VNC_PORT
@@ -165,7 +165,7 @@ EXPOSE "${VNC_PORT}"
 ### stage_novnc
 ###############
 
-FROM stage_vnc as stage_novnc
+FROM stage_vnc AS stage_novnc
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_NOVNC_PORT
 ARG ARG_NOVNC_VERSION
@@ -207,10 +207,12 @@ RUN echo \
     <head>\n\
         <title>noVNC</title>\n\
         <meta charset=\"utf-8\"/>\n\
+        <meta http-equiv=\"refresh\" content=\"10; url='vnc.html'\" />\n\
     </head>\n\
     <body>\n\
-        <p><a href=\"vnc_lite.html\">noVNC Lite Client</a></p>\n\
-        <p><a href=\"vnc.html\">noVNC Full Client</a></p>\n\
+    <p><a href=\"vnc_lite.html\">noVNC Lite Client</a></p>\n\
+    <p><a href=\"vnc.html\">noVNC Full Client</a></p>\n\
+    <p>Full Client will start automatically in 10 seconds...</p>\n\
     </body>\n\
 </html>" \
 > "${NOVNC_HOME}"/index.html
@@ -222,7 +224,7 @@ EXPOSE "${NOVNC_PORT}"
 ### merge_stage_vnc
 ###################
 
-FROM ${ARG_MERGE_STAGE_VNC_BASE} as merge_stage_vnc
+FROM ${ARG_MERGE_STAGE_VNC_BASE} AS merge_stage_vnc
 ARG ARG_HEADLESS_USER_ID
 ARG ARG_HEADLESS_USER_NAME
 ARG ARG_HEADLESS_USER_GROUP_ID
@@ -245,7 +247,7 @@ COPY ./src/home "${HOME}"/
 ### stage_chromium
 ##################
 
-FROM merge_stage_vnc as stage_chromium
+FROM merge_stage_vnc AS stage_chromium
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -266,7 +268,7 @@ COPY ./xfce-chromium/src/home/readme*.md "${HOME}"/
 ### stage_firefox
 #################
 
-FROM merge_stage_vnc as stage_firefox
+FROM merge_stage_vnc AS stage_firefox
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -286,7 +288,7 @@ COPY ./xfce-firefox/src/home/Desktop "${HOME}"/Desktop/
 ### stage_firefox_plus
 ### ##################
 
-FROM stage_firefox as stage_firefox_plus
+FROM stage_firefox AS stage_firefox_plus
 
 ENV FEATURES_FIREFOX_PLUS=1
 
@@ -305,14 +307,14 @@ RUN \
 ### merge_stage_browser
 #######################
 
-FROM ${ARG_MERGE_STAGE_BROWSER_BASE} as merge_stage_browser
+FROM ${ARG_MERGE_STAGE_BROWSER_BASE} AS merge_stage_browser
 
 
 #################
 ### stage_postman
 #################
 
-FROM merge_stage_browser as stage_postman
+FROM merge_stage_browser AS stage_postman
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_POSTMAN_DISTRO
 ARG ARG_POSTMAN_VERSION
@@ -365,7 +367,7 @@ COPY ./xfce-postman/src/home/readme*.md "${HOME}"/
 ### FINAL STAGE
 ###############
 
-FROM ${ARG_FINAL_STAGE_BASE} as stage_final
+FROM ${ARG_FINAL_STAGE_BASE} AS stage_final
 ARG ARG_FEATURES_OVERRIDING_ENVV
 ARG ARG_SUDO_INITIAL_PW
 
@@ -411,7 +413,7 @@ ENTRYPOINT [ "/usr/bin/tini", "--", "/dockerstartup/startup.sh" ]
 ### METADATA STAGE
 ##################
 
-FROM stage_final as stage_metadata
+FROM stage_final AS stage_metadata
 ARG ARG_CREATED
 ARG ARG_DOCKER_TAG
 ARG ARG_VCS_REF
diff --git a/docker/Dockerfile.xfce.python b/docker/Dockerfile.xfce.python
index b6614be..ca48a3b 100644
--- a/docker/Dockerfile.xfce.python
+++ b/docker/Dockerfile.xfce.python
@@ -18,7 +18,7 @@ ARG ARG_SUDO_INITIAL_PW=headless
 ### stage_cache
 ###############
 
-FROM ${BASEIMAGE}:${BASETAG} as stage_cache
+FROM ${BASEIMAGE}:${BASETAG} AS stage_cache
 
 ### refresh the 'apt' cache
 RUN rm -f /etc/apt/apt.conf.d/docker-clean ; \
@@ -38,7 +38,7 @@ RUN \
 ### stage_essentials
 ####################
 
-FROM ${BASEIMAGE}:${BASETAG} as stage_essentials
+FROM ${BASEIMAGE}:${BASETAG} AS stage_essentials
 
 RUN \
     --mount=type=cache,from=stage_cache,sharing=locked,source=/var/cache/apt,target=/var/cache/apt \
@@ -59,7 +59,7 @@ RUN \
 ### stage_xserver
 #################
 
-FROM stage_essentials as stage_xserver
+FROM stage_essentials AS stage_xserver
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -81,7 +81,7 @@ RUN \
 ### stage_xfce
 ##############
 
-FROM stage_xserver as stage_xfce
+FROM stage_xserver AS stage_xfce
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV FEATURES_BUILD_SLIM_XFCE="${ARG_APT_NO_RECOMMENDS:+1}"
@@ -98,7 +98,7 @@ RUN \
 ### stage_tools
 ###############
 
-FROM stage_xfce as stage_tools
+FROM stage_xfce AS stage_tools
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_FEATURES_SCREENSHOOTING
 ARG ARG_FEATURES_THUMBNAILING
@@ -124,7 +124,7 @@ RUN \
 ### stage_vnc
 #############
 
-FROM stage_tools as stage_vnc
+FROM stage_tools AS stage_vnc
 ARG ARG_VNC_COL_DEPTH
 ARG ARG_VNC_DISPLAY
 ARG ARG_VNC_PORT
@@ -165,7 +165,7 @@ EXPOSE "${VNC_PORT}"
 ### stage_novnc
 ###############
 
-FROM stage_vnc as stage_novnc
+FROM stage_vnc AS stage_novnc
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_NOVNC_PORT
 ARG ARG_NOVNC_VERSION
@@ -207,10 +207,12 @@ RUN echo \
     <head>\n\
         <title>noVNC</title>\n\
         <meta charset=\"utf-8\"/>\n\
+        <meta http-equiv=\"refresh\" content=\"10; url='vnc.html'\" />\n\
     </head>\n\
     <body>\n\
-        <p><a href=\"vnc_lite.html\">noVNC Lite Client</a></p>\n\
-        <p><a href=\"vnc.html\">noVNC Full Client</a></p>\n\
+    <p><a href=\"vnc_lite.html\">noVNC Lite Client</a></p>\n\
+    <p><a href=\"vnc.html\">noVNC Full Client</a></p>\n\
+    <p>Full Client will start automatically in 10 seconds...</p>\n\
     </body>\n\
 </html>" \
 > "${NOVNC_HOME}"/index.html
@@ -222,7 +224,7 @@ EXPOSE "${NOVNC_PORT}"
 ### merge_stage_vnc
 ###################
 
-FROM ${ARG_MERGE_STAGE_VNC_BASE} as merge_stage_vnc
+FROM ${ARG_MERGE_STAGE_VNC_BASE} AS merge_stage_vnc
 ARG ARG_HEADLESS_USER_ID
 ARG ARG_HEADLESS_USER_NAME
 ARG ARG_HEADLESS_USER_GROUP_ID
@@ -245,7 +247,7 @@ COPY ./src/home "${HOME}"/
 ### stage_chromium
 ##################
 
-FROM merge_stage_vnc as stage_chromium
+FROM merge_stage_vnc AS stage_chromium
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -266,7 +268,7 @@ COPY ./xfce-chromium/src/home/readme*.md "${HOME}"/
 ### stage_firefox
 #################
 
-FROM merge_stage_vnc as stage_firefox
+FROM merge_stage_vnc AS stage_firefox
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -286,7 +288,7 @@ COPY ./xfce-firefox/src/home/Desktop "${HOME}"/Desktop/
 ### stage_firefox_plus
 ### ##################
 
-FROM stage_firefox as stage_firefox_plus
+FROM stage_firefox AS stage_firefox_plus
 
 ENV FEATURES_FIREFOX_PLUS=1
 
@@ -305,14 +307,14 @@ RUN \
 ### merge_stage_browser
 #######################
 
-FROM ${ARG_MERGE_STAGE_BROWSER_BASE} as merge_stage_browser
+FROM ${ARG_MERGE_STAGE_BROWSER_BASE} AS merge_stage_browser
 
 
 ################
 ### stage-python
 ################
 
-FROM merge_stage_browser as stage_python
+FROM merge_stage_browser AS stage_python
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -339,7 +341,7 @@ COPY ./xfce-python/src/samples "${HOME}"/projects/samples
 ### stage_vscode
 ################
 
-FROM stage_python as stage_vscode
+FROM stage_python AS stage_vscode
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_VSCODE_DISTRO
 ARG ARG_VSCODE_VERSION
@@ -391,7 +393,7 @@ RUN \
 ### FINAL STAGE
 ###############
 
-FROM ${ARG_FINAL_STAGE_BASE} as stage_final
+FROM ${ARG_FINAL_STAGE_BASE} AS stage_final
 ARG ARG_FEATURES_OVERRIDING_ENVV
 ARG ARG_SUDO_INITIAL_PW
 
@@ -437,7 +439,7 @@ ENTRYPOINT [ "/usr/bin/tini", "--", "/dockerstartup/startup.sh" ]
 ### METADATA STAGE
 ##################
 
-FROM stage_final as stage_metadata
+FROM stage_final AS stage_metadata
 ARG ARG_CREATED
 ARG ARG_DOCKER_TAG
 ARG ARG_VCS_REF
diff --git a/docker/Dockerfile.xfce.vscode b/docker/Dockerfile.xfce.vscode
index 7539ffc..bf3a899 100644
--- a/docker/Dockerfile.xfce.vscode
+++ b/docker/Dockerfile.xfce.vscode
@@ -18,7 +18,7 @@ ARG ARG_SUDO_INITIAL_PW=headless
 ### stage_cache
 ###############
 
-FROM ${BASEIMAGE}:${BASETAG} as stage_cache
+FROM ${BASEIMAGE}:${BASETAG} AS stage_cache
 
 ### refresh the 'apt' cache
 RUN rm -f /etc/apt/apt.conf.d/docker-clean ; \
@@ -38,7 +38,7 @@ RUN \
 ### stage_essentials
 ####################
 
-FROM ${BASEIMAGE}:${BASETAG} as stage_essentials
+FROM ${BASEIMAGE}:${BASETAG} AS stage_essentials
 
 RUN \
     --mount=type=cache,from=stage_cache,sharing=locked,source=/var/cache/apt,target=/var/cache/apt \
@@ -59,7 +59,7 @@ RUN \
 ### stage_xserver
 #################
 
-FROM stage_essentials as stage_xserver
+FROM stage_essentials AS stage_xserver
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -81,7 +81,7 @@ RUN \
 ### stage_xfce
 ##############
 
-FROM stage_xserver as stage_xfce
+FROM stage_xserver AS stage_xfce
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV FEATURES_BUILD_SLIM_XFCE="${ARG_APT_NO_RECOMMENDS:+1}"
@@ -98,7 +98,7 @@ RUN \
 ### stage_tools
 ###############
 
-FROM stage_xfce as stage_tools
+FROM stage_xfce AS stage_tools
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_FEATURES_SCREENSHOOTING
 ARG ARG_FEATURES_THUMBNAILING
@@ -124,7 +124,7 @@ RUN \
 ### stage_vnc
 #############
 
-FROM stage_tools as stage_vnc
+FROM stage_tools AS stage_vnc
 ARG ARG_VNC_COL_DEPTH
 ARG ARG_VNC_DISPLAY
 ARG ARG_VNC_PORT
@@ -165,7 +165,7 @@ EXPOSE "${VNC_PORT}"
 ### stage_novnc
 ###############
 
-FROM stage_vnc as stage_novnc
+FROM stage_vnc AS stage_novnc
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_NOVNC_PORT
 ARG ARG_NOVNC_VERSION
@@ -207,10 +207,12 @@ RUN echo \
     <head>\n\
         <title>noVNC</title>\n\
         <meta charset=\"utf-8\"/>\n\
+        <meta http-equiv=\"refresh\" content=\"10; url='vnc.html'\" />\n\
     </head>\n\
     <body>\n\
-        <p><a href=\"vnc_lite.html\">noVNC Lite Client</a></p>\n\
-        <p><a href=\"vnc.html\">noVNC Full Client</a></p>\n\
+    <p><a href=\"vnc_lite.html\">noVNC Lite Client</a></p>\n\
+    <p><a href=\"vnc.html\">noVNC Full Client</a></p>\n\
+    <p>Full Client will start automatically in 10 seconds...</p>\n\
     </body>\n\
 </html>" \
 > "${NOVNC_HOME}"/index.html
@@ -222,7 +224,7 @@ EXPOSE "${NOVNC_PORT}"
 ### merge_stage_vnc
 ###################
 
-FROM ${ARG_MERGE_STAGE_VNC_BASE} as merge_stage_vnc
+FROM ${ARG_MERGE_STAGE_VNC_BASE} AS merge_stage_vnc
 ARG ARG_HEADLESS_USER_ID
 ARG ARG_HEADLESS_USER_NAME
 ARG ARG_HEADLESS_USER_GROUP_ID
@@ -245,7 +247,7 @@ COPY ./src/home "${HOME}"/
 ### stage_chromium
 ##################
 
-FROM merge_stage_vnc as stage_chromium
+FROM merge_stage_vnc AS stage_chromium
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -266,7 +268,7 @@ COPY ./xfce-chromium/src/home/readme*.md "${HOME}"/
 ### stage_firefox
 #################
 
-FROM merge_stage_vnc as stage_firefox
+FROM merge_stage_vnc AS stage_firefox
 ARG ARG_APT_NO_RECOMMENDS
 
 ENV \
@@ -286,7 +288,7 @@ COPY ./xfce-firefox/src/home/Desktop "${HOME}"/Desktop/
 ### stage_firefox_plus
 ### ##################
 
-FROM stage_firefox as stage_firefox_plus
+FROM stage_firefox AS stage_firefox_plus
 
 ENV FEATURES_FIREFOX_PLUS=1
 
@@ -305,14 +307,14 @@ RUN \
 ### merge_stage_browser
 #######################
 
-FROM ${ARG_MERGE_STAGE_BROWSER_BASE} as merge_stage_browser
+FROM ${ARG_MERGE_STAGE_BROWSER_BASE} AS merge_stage_browser
 
 
 ################
 ### stage_vscode
 ################
 
-FROM merge_stage_browser as stage_vscode
+FROM merge_stage_browser AS stage_vscode
 ARG ARG_APT_NO_RECOMMENDS
 ARG ARG_VSCODE_DISTRO
 ARG ARG_VSCODE_VERSION
@@ -364,7 +366,7 @@ RUN \
 ### FINAL STAGE
 ###############
 
-FROM ${ARG_FINAL_STAGE_BASE} as stage_final
+FROM ${ARG_FINAL_STAGE_BASE} AS stage_final
 ARG ARG_FEATURES_OVERRIDING_ENVV
 ARG ARG_SUDO_INITIAL_PW
 
@@ -410,7 +412,7 @@ ENTRYPOINT [ "/usr/bin/tini", "--", "/dockerstartup/startup.sh" ]
 ### METADATA STAGE
 ##################
 
-FROM stage_final as stage_metadata
+FROM stage_final AS stage_metadata
 ARG ARG_CREATED
 ARG ARG_DOCKER_TAG
 ARG ARG_VCS_REF
diff --git a/docker/hooks/release_of b/docker/hooks/release_of
index 1e1304d..a5cdcc1 100644
--- a/docker/hooks/release_of
+++ b/docker/hooks/release_of
@@ -3,36 +3,52 @@
 main() {
     local version="$2"
     local result=""
+    local response=""
+    local truncateMax=1000
 
     case "$1" in
 
         nodejs-current )
             # result=$(wget -qO- \
-            result=$(curl -sLN \
-                https://nodejs.org/en/feed/releases.xml \
-                | grep '\(Current\)' \
-                | sort -rV \
-                | grep -Po -m1 '[0-9.]+' \
-                )
+            # result=$(curl -sLN \
+            #     https://nodejs.org/en/feed/releases.xml \
+            #     | grep '\(Current\)' \
+            #     | sort -rV \
+            #     | grep -Po -m1 '[0-9.]+' \
+            #     )
+            response=$(curl -sLN https://nodejs.org/en/feed/releases.xml)
+            if [[ -n "${response}" ]] ; then
+                result=$(echo "${response}" | grep '\(Current\)' | sort -rV | grep -Po -m1 '[0-9.]+')
+            fi
             ;;
 
         nodejs-lts )
             # result=$(wget -qO- \
-            result=$(curl -sLN \
-                https://nodejs.org/en/feed/releases.xml \
-                | grep '\(LTS\)' \
-                | sort -rV \
-                | grep -Po -m1 '[0-9.]+' \
-                )
+            # result=$(curl -sLN \
+            #     https://nodejs.org/en/feed/releases.xml \
+            #     | grep '\(LTS\)' \
+            #     | sort -rV \
+            #     | grep -Po -m1 '[0-9.]+' \
+            #     )
+            response=$(curl -sLN https://nodejs.org/en/feed/releases.xml)
+            if [[ -n "${response}" ]] ; then
+                result=$(echo "${response}" | grep '\(LTS\)' | sort -rV | grep -Po -m1 '[0-9.]+')
+            fi
             ;;
 
         nvm )
             # result=$(wget -qO- \
-            result=$(curl -sLN -H "Accept: application/vnd.github.v3+json" \
+            # result=$(curl -sLN -H "Accept: application/vnd.github.v3+json" \
+            #     https://api.github.com/repos/nvm-sh/nvm/releases/latest \
+            #     | grep -m1 "tag_name" \
+            #     | grep -Po '[0-9.]+'
+            # )
+            response=$(curl -sLN -H "Accept: application/vnd.github.v3+json" \
                 https://api.github.com/repos/nvm-sh/nvm/releases/latest \
-                | grep -m1 "tag_name" \
-                | grep -Po '[0-9.]+'
             )
+            if [[ -n "${response}" ]] ; then
+                result=$(echo "${response}" | grep -m1 "tag_name" | grep -Po '[0-9.]+')
+            fi
             ;;
 
         postman )
@@ -47,22 +63,38 @@ main() {
             #     | grep -m1 "version" \
             #     | grep -Po '[0-9.]+'
             # )
+            # response=$(curl -sLN -H "Accept: application/vnd.github.v3+json" \
+            #     "https://dl.pstmn.io/api/version/latest?platform=linux64&channel=stable")
+            # if [[ -n "${response}" ]] ; then
+            #     result=$(echo "${response}" | grep -m1 "version" | grep -Po '[0-9.]+')
+            # fi 
             ;;
 
         vscode )
             # result=$(wget -qO- \
-            result=$(curl -sLN -H "Accept: application/vnd.github.v3+json" \
+            # result=$(curl -sLN -H "Accept: application/vnd.github.v3+json" \
+            #     https://api.github.com/repos/microsoft/vscode/releases/latest \
+            #     | grep -m1 "tag_name" \
+            #     | grep -Po '[0-9.]+'
+            # )
+            response=$(curl -sLN -H "Accept: application/vnd.github.v3+json" \
                 https://api.github.com/repos/microsoft/vscode/releases/latest \
-                | grep -m1 "tag_name" \
-                | grep -Po '[0-9.]+'
             )
+            if [[ -n "${response}" ]] ; then
+                result=$(echo "${response}" | grep -m1 "tag_name" | grep -Po '[0-9.]+')
+            fi
             ;;
 
         vscode-file )
             # result=$(wget -qO- \
-            result="$(curl -sLNI https://update.code.visualstudio.com/${version:-latest}/linux-x64/stable \
-                | grep -Po -m1 '(?<=location: )[^\r]+'
-            )"
+            # result="$(curl -sLNI https://update.code.visualstudio.com/${version:-latest}/linux-x64/stable \
+            #     | grep -Po -m1 '(?<=location: )[^\r]+'
+            # )"
+            # result="${result##*/}"
+            response=$(curl -sLNI https://update.code.visualstudio.com/${version:-latest}/linux-x64/stable)
+            if [[ -n "${response}" ]] ; then
+                result=$(echo ${response} | grep -Po -m1 '(?<=location: )[^\r]+')
+            fi
             result="${result##*/}"
             ;;
 
@@ -78,7 +110,10 @@ main() {
 
         echo "${result}"
     else
-        echo "Exiting '${0}' with code '1' because unable to get version of '$1'"
+        echo "ERROR: Exiting '${0}' with code '1' because unable to get version of '$1'"
+        echo "ERROR: Unexpected HTTPS response (truncated to $truncateMax):"
+        ### don't use quotes here
+        echo ${response:0:truncateMax}
         return 1
     fi
 }