Bump to Scala 2.13.10 (backport #2774) (#2775)

* Bump to Scala 2.13.10 (#2774)

2.13.9 has a binary compatibility regression so should be avoided.

(cherry picked from commit c53265d6853728280b6bc01b001415166515c79a)

# Conflicts:
#	.github/workflows/test.yml

* Fix backport conflicts

* Fix scalaVersion in README

* Waive binary compatibility check for plugin for 2.13.10

3.5.4 is published for 2.13.10 so we cannot check binary compatibility
for it.

Co-authored-by: Jack Koenig <koenig@sifive.com>

4 files changed, 10 insertions, 9 deletions

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e48f37ea..69426662 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -17,7 +17,7 @@ jobs:
       matrix:
         system: ["ubuntu-20.04"]
         jvm: ["adopt@1.8"]
-        scala: ["2.13.9", "2.12.17"]
+        scala: ["2.13.10", "2.12.17"]
         espresso: ["2.4"]
     runs-on: ${{ matrix.system }}
 
diff --git a/README.md b/README.md
index 6a903dd6..a68ba261 100644
--- a/README.md
+++ b/README.md
@@ -222,10 +222,10 @@ For example, in SBT this could be expressed as:
 ```scala
 // build.sbt
 scalaVersion := "2.13.8"
-addCompilerPlugin("edu.berkeley.cs" % "chisel3-plugin" % "3.5.3" cross CrossVersion.full)
-libraryDependencies += "edu.berkeley.cs" %% "chisel3" % "3.5.3"
+addCompilerPlugin("edu.berkeley.cs" % "chisel3-plugin" % "3.5.4" cross CrossVersion.full)
+libraryDependencies += "edu.berkeley.cs" %% "chisel3" % "3.5.4"
 // We also recommend using chiseltest for writing unit tests
-libraryDependencies += "edu.berkeley.cs" %% "chiseltest" % "0.5.3" % "test"
+libraryDependencies += "edu.berkeley.cs" %% "chiseltest" % "0.5.4" % "test"
 ```
 
 ### Guide For New Contributors
diff --git a/build.sbt b/build.sbt
index 36102074..49643118 100644
--- a/build.sbt
+++ b/build.sbt
@@ -22,7 +22,7 @@ lazy val commonSettings = Seq (
   version := "3.5-SNAPSHOT",
   autoAPIMappings := true,
   scalaVersion := "2.12.17",
-  crossScalaVersions := Seq("2.13.9", "2.12.17"),
+  crossScalaVersions := Seq("2.13.10", "2.12.17"),
   scalacOptions := Seq("-deprecation", "-feature"),
   libraryDependencies += "org.scala-lang" % "scala-reflect" % scalaVersion.value,
   // Macros paradise is integrated into 2.13 but requires a scalacOption
@@ -123,7 +123,8 @@ lazy val pluginScalaVersions = Seq(
   "2.13.6",
   "2.13.7",
   "2.13.8",
-  "2.13.9"
+  "2.13.9",
+  "2.13.10",
 )
 
 lazy val plugin = (project in file("plugin")).
@@ -143,8 +144,8 @@ lazy val plugin = (project in file("plugin")).
   ).
   settings(
     mimaPreviousArtifacts := {
-      // There is not yet a 2.12.17 nor 2.13.9 artifact, so suppress until 3.5.5 is released
-      val skipVersions = Seq("2.12.17", "2.13.9")
+      // There are not yet artifacts for 2.12.17, 2.13.9, nor 2.13.10; suppress until 3.5.5 is released
+      val skipVersions = Seq("2.12.17", "2.13.9", "2.13.10")
       if (skipVersions.contains(scalaVersion.value)) {
         Set()
       } else {
diff --git a/build.sc b/build.sc
index 9e46098c..80ba17fe 100644
--- a/build.sc
+++ b/build.sc
@@ -6,7 +6,7 @@ import coursier.maven.MavenRepository
 import $ivy.`com.lihaoyi::mill-contrib-buildinfo:$MILL_VERSION`
 import mill.contrib.buildinfo.BuildInfo
 
-object chisel3 extends mill.Cross[chisel3CrossModule]("2.13.9", "2.12.17")
+object chisel3 extends mill.Cross[chisel3CrossModule]("2.13.10", "2.12.17")
 
 // The following stanza is searched for and used when preparing releases.
 // Please retain it.