diff -r b17a98b0c52f -r e48ea8300b2d handouts/pep-ho.tex
--- a/handouts/pep-ho.tex	Sat Nov 06 00:06:39 2021 +0000
+++ b/handouts/pep-ho.tex	Mon Nov 08 00:17:50 2021 +0000
@@ -194,13 +194,13 @@
 \includegraphics[scale=0.15]{../pics/vscode.png}\\[-10mm]\mbox{}
 \end{center}
 \caption{My installation of VS Code includes the following
-  packages from Marketplace: \textbf{Scala Syntax (official)} 0.3.4,
-  \textbf{Code Runner} 0.9.13, \textbf{Code Spell Checker} 1.7.17,
-  \textbf{Rewrap} 1.9.1 and \textbf{Subtle Match
+  packages from Marketplace: \textbf{Scala Syntax (official)} 0.5.4,
+  \textbf{Code Runner} 0.11.6, \textbf{Code Spell Checker} 2.0.12,
+  \textbf{Rewrap} 1.14.0 and \textbf{Subtle Match
   Brackets} 3.0.0. I have also bound the keys \keys{Ctrl} \keys{Ret} to the
   action ``Run-Selected-Text-In-Active-Terminal'' in order to quickly
   evaluate small code snippets in the Scala REPL. I use the internal
-  terminal to run Scala 2.13.1.\label{vscode}}
+  terminal to run Scala 2.13.6.\label{vscode}}
 \end{boxedminipage}
 \end{figure}  
 
@@ -380,8 +380,8 @@
 \end{lstlisting}}   
 & 
 {\footnotesize\begin{lstlisting}[xleftmargin=0mm]
-for (y <- (0 until H)/*@\keys{\texttt{.par}}@*/) {
-  for (x <- (0 until W)/*@\keys{\texttt{.par}}@*/) {
+for (y <- (0 until H).par) {
+  for (x <- (0 until W).par) {
       
     val c = start + 
       (x * d_x + y * d_y * i)
@@ -461,7 +461,7 @@
 
 \begin{lstlisting}[language={},numbers=none,basicstyle=\ttfamily\small]
 $ scala
-Welcome to Scala 2.13.1 (Java HotSpot(TM) 64-Bit Server VM, Java 9).
+Welcome to Scala 2.13.6 (OpenJDK 64-Bit Server VM, Java 17).
 Type in expressions for evaluation. Or try :help.
 
 scala>
@@ -1717,8 +1717,8 @@
 about Scala and of course lots of help online. For example
 
 \begin{itemize}
-\item \url{http://www.scala-lang.org/docu/files/ScalaByExample.pdf}
-\item \url{http://www.scala-lang.org/docu/files/ScalaTutorial.pdf}
+%%\item \url{http://www.scala-lang.org/docu/files/ScalaByExample.pdf}
+%%\item \url{http://www.scala-lang.org/docu/files/ScalaTutorial.pdf}
 \item \url{https://www.youtube.com/user/ShadowofCatron}
 \item \url{http://docs.scala-lang.org/tutorials}
 \item \url{https://www.scala-exercises.org}