Use Chisel 6 for now

build.sbt

@@ -11,31 +11,33 @@ scalacOptions ++= Seq(
   "-language:reflectiveCalls",
 )
 
-
+/*
 scalaVersion := "2.13.10"
 val chiselVersion = "3.5.6"
 addCompilerPlugin("edu.berkeley.cs" %% "chisel3-plugin" % chiselVersion cross CrossVersion.full)
 libraryDependencies += "edu.berkeley.cs" %% "chisel3" % chiselVersion
 libraryDependencies += "edu.berkeley.cs" %% "chiseltest" % "0.5.6"
-
+*/
 
 /*
+scalaVersion := "2.13.14"
 val chiselVersion = "3.6.1"
 addCompilerPlugin("edu.berkeley.cs" %% "chisel3-plugin" % chiselVersion cross CrossVersion.full)
 libraryDependencies += "edu.berkeley.cs" %% "chisel3" % chiselVersion
 libraryDependencies += "edu.berkeley.cs" %% "chiseltest" % "0.6.2"
 */
 
 /*
+scalaVersion := "2.13.14"
 val chiselVersion = "5.3.0"
 addCompilerPlugin("org.chipsalliance" % "chisel-plugin" % chiselVersion cross CrossVersion.full)
 libraryDependencies += "org.chipsalliance" %% "chisel" % chiselVersion
 libraryDependencies += "edu.berkeley.cs" %% "chiseltest" % "5.0.2"
 */
 
-/*
+
+scalaVersion := "2.13.14"
 val chiselVersion = "6.5.0"
 addCompilerPlugin("org.chipsalliance" % "chisel-plugin" % chiselVersion cross CrossVersion.full)
 libraryDependencies += "org.chipsalliance" %% "chisel" % chiselVersion
 libraryDependencies += "edu.berkeley.cs" %% "chiseltest" % "6.0.0"
-*/

chisel-book.tex

@@ -1715,12 +1715,14 @@ \subsubsection{Chisel, Scala, and Java Versions}
 Scala itself is built on top of Java (using the Java library and running on the JVM)
 and therefore depends on a specific Java version. Changes in the Java version needs
 updates in the Scala (patch) version. A safe baseline Java version is Java 8, where all Scala and
-Chisel versions work. Chisel itself has been maintained to work with Scala 2.12 and
-2.13, up to version 5.
+Chisel versions work.\footnote{see \url{https://docs.scala-lang.org/overviews/jdk-compatibility/overview.html}}
+Chisel itself has been maintained to work with Scala 2.12 and 2.13, up to version 5.
 Chisel 6 is based on Scala 2.13 only.\footnote{Getting Chisel to work on top of Scala 3 is work in progress.}
 A safe selection is to use Scala 2.13. However, as Chisel is using a Scala compiler plugin,
-the highest supported patch version of Scala is restricted by the published compiler plugin.
-Table~\ref{tab:versions} shows the Chisel versions with the support of the highest
+the highest supported patch version of Scala is restricted by the published compiler
+plugin.\footnote{see \url{https://mvnrepository.com/artifact/edu.berkeley.cs/chisel3-plugin}
+and \url{https://mvnrepository.com/artifact/org.chipsalliance/chisel-plugin}}
+Table~\ref{tab:versions} shows Chisel versions with their support of the highest
 Scala and Java versions.
 
 
@@ -1736,7 +1738,7 @@ \subsubsection{Chisel, Scala, and Java Versions}
     6.5.x & 2.13.14 & 22 \\
     \bottomrule
   \end{tabular}
-  \caption{Chisel, Scala, and Java Versions.}
+  \caption{Chisel and highest supported Scala and Java versions.}
  \label{tab:versions}
 \end{table}