diff --git a/R/stubs.R b/R/stubs.R
index 1f52d1e..b1f1139 100644
--- a/R/stubs.R
+++ b/R/stubs.R
@@ -426,13 +426,17 @@ hasColorConsole <- function() {
 #' 
 #' 
 #' @param command A command (as a string) to be run after restarting.
+#' @param clean Boolean; when `FALSE`, the current \R session (including
+#'   loaded packages and data objects) will be saved and restored in the
+#'   new session.
 #' 
 #' @note The \code{restartSession} function was added in version 1.1.281 of
-#'   RStudio.
+#'   RStudio. Support for the `clean` argument was added for version 2024.04
+#'   release of RStudio; it is silently ignored in older versions of RStudio.
 #'   
 #' @export
-restartSession <- function(command = "") {
-  callFun("restartSession", command)
+restartSession <- function(command = "", clean = FALSE) {
+  callFun("restartSession", command, clean)
 }
 
 
diff --git a/man/restartSession.Rd b/man/restartSession.Rd
index 4114d53..fc07664 100644
--- a/man/restartSession.Rd
+++ b/man/restartSession.Rd
@@ -4,15 +4,20 @@
 \alias{restartSession}
 \title{Restart the R Session}
 \usage{
-restartSession(command = "")
+restartSession(command = "", clean = FALSE)
 }
 \arguments{
 \item{command}{A command (as a string) to be run after restarting.}
+
+\item{clean}{Boolean; when \code{FALSE}, the current \R session (including
+loaded packages and data objects) will be saved and restored in the
+new session.}
 }
 \description{
 Restart the RStudio session.
 }
 \note{
 The \code{restartSession} function was added in version 1.1.281 of
-RStudio.
+RStudio. Support for the \code{clean} argument was added for version 2024.04
+release of RStudio; it is silently ignored in older versions of RStudio.
 }