make backward compatible with 3.6.0

.devcontainer/Dockerfile

@@ -0,0 +1,47 @@
+# R version: 4, 4.1, 4.0
+ARG VARIANT="4.0"
+FROM rocker/r-ver:${VARIANT}
+
+# Use the [Option] comment to specify true/false arguments that should appear in VS Code UX
+#
+# [Option] Install zsh
+ARG INSTALL_ZSH="true"
+# [Option] Upgrade OS packages to their latest versions
+ARG UPGRADE_PACKAGES="false"
+
+# Install needed packages and setup non-root user. Use a separate RUN statement to add your own dependencies.
+ARG USERNAME=vscode
+ARG USER_UID=1000
+ARG USER_GID=$USER_UID
+COPY library-scripts/*.sh /tmp/library-scripts/
+RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
+    && /bin/bash /tmp/library-scripts/common-debian.sh "${INSTALL_ZSH}" "${USERNAME}" "${USER_UID}" "${USER_GID}" "${UPGRADE_PACKAGES}" "true" "true" \
+    && usermod -a -G staff ${USERNAME} \
+    && apt-get -y install \
+        python3-pip \
+        libgit2-dev \
+        libcurl4-openssl-dev \
+        libssl-dev \
+        libxml2-dev \
+        libxt-dev \
+    && apt-get autoremove -y && apt-get clean -y && rm -rf /var/lib/apt/lists/* /tmp/library-scripts \
+    && python3 -m pip --no-cache-dir install radian \
+    && install2.r --error --skipinstalled --ncpus -1 \
+        devtools \
+        languageserver \
+        httpgd \
+    && rm -rf /tmp/downloaded_packages
+
+# VSCode R Debugger dependency. Install the latest release version from GitHub without using GitHub API.
+# See https://github.com/microsoft/vscode-dev-containers/issues/1032
+RUN export TAG=$(git ls-remote --tags --refs --sort='version:refname' https://github.com/ManuelHentschel/vscDebugger v\* | tail -n 1 | cut --delimiter='/' --fields=3) \
+    && Rscript -e "remotes::install_git('https://github.com/ManuelHentschel/vscDebugger.git', ref = '"${TAG}"', dependencies = FALSE)"
+
+# R Session watcher settings.
+# See more details: https://github.com/REditorSupport/vscode-R/wiki/R-Session-watcher
+RUN echo 'source(file.path(Sys.getenv("HOME"), ".vscode-R", "init.R"))' >> ${R_HOME}/etc/Rprofile.site
+
+# [Optional] Uncomment this section to install additional OS packages.
+# RUN apt-get update \
+#     && export DEBIAN_FRONTEND=noninteractive \
+#     && apt-get -y install --no-install-recommends <your-package-list-here>

.devcontainer/devcontainer.json

@@ -0,0 +1,38 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.217.4/containers/r
+{
+	"name": "R (Community)",
+	"build": {
+		"dockerfile": "Dockerfile",
+		// Update VARIANT to pick a specific R version: 4, 4.1, 4.0
+		"args": {
+			"VARIANT": "4.0",
+			"INSTALL_ZSH": "false"
+		}
+	},
+
+	// Set *default* container specific settings.json values on container create.
+	"settings": {
+		"r.rterm.linux": "/usr/local/bin/radian",
+		"r.bracketedPaste": true,
+		"r.plot.useHttpgd": true,
+		"[r]": {
+			"editor.wordSeparators": "`~!@#%$^&*()-=+[{]}\\|;:'\",<>/?"
+		}
+	},
+
+	// Add the IDs of extensions you want installed when the container is created.
+	"extensions": [
+		"ikuyadeu.r",
+		"rdebugger.r-debugger"
+	],
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "R --version",
+
+	// Comment out to connect as root instead. More info: https://aka.ms/vscode-remote/containers/non-root.
+	"remoteUser": "vscode"
+}