diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3f70ba3..a8634b9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -29,17 +29,13 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-latest]
-        scala: [2.12.17, 2.13.10, 3.2.1]
+        scala: [2.13.10, 3.2.1]
         java: [temurin@8, temurin@11, temurin@17]
         project: [rootJS, rootJVM, rootNative]
         exclude:
-          - scala: 2.12.17
+          - scala: 2.13.10
             java: temurin@11
-          - scala: 2.12.17
-            java: temurin@17
-          - scala: 3.2.1
-            java: temurin@11
-          - scala: 3.2.1
+          - scala: 2.13.10
             java: temurin@17
           - project: rootJS
             java: temurin@11
@@ -172,7 +168,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        scala: [2.13.10]
+        scala: [3.2.1]
         java: [temurin@8]
     runs-on: ${{ matrix.os }}
     steps:
@@ -241,36 +237,6 @@ jobs:
             ~/Library/Caches/Coursier/v1
           key: ${{ runner.os }}-sbt-cache-v2-${{ hashFiles('**/*.sbt') }}-${{ hashFiles('project/build.properties') }}
 
-      - name: Download target directories (2.12.17, rootJS)
-        uses: actions/download-artifact@v2
-        with:
-          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12.17-rootJS
-
-      - name: Inflate target directories (2.12.17, rootJS)
-        run: |
-          tar xf targets.tar
-          rm targets.tar
-
-      - name: Download target directories (2.12.17, rootJVM)
-        uses: actions/download-artifact@v2
-        with:
-          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12.17-rootJVM
-
-      - name: Inflate target directories (2.12.17, rootJVM)
-        run: |
-          tar xf targets.tar
-          rm targets.tar
-
-      - name: Download target directories (2.12.17, rootNative)
-        uses: actions/download-artifact@v2
-        with:
-          name: target-${{ matrix.os }}-${{ matrix.java }}-2.12.17-rootNative
-
-      - name: Inflate target directories (2.12.17, rootNative)
-        run: |
-          tar xf targets.tar
-          rm targets.tar
-
       - name: Download target directories (2.13.10, rootJS)
         uses: actions/download-artifact@v2
         with:
diff --git a/.scala-steward.conf b/.scala-steward.conf
new file mode 100644
index 0000000..939fca9
--- /dev/null
+++ b/.scala-steward.conf
@@ -0,0 +1,6 @@
+updates.ignore = [
+  # Inherit from series/0.24
+  { groupId = "org.http4s", artifactId = "sbt-http4s-org" },
+  { groupId = "org.scala-lang", artifactId = "scala3-library" },
+  { groupId = "org.scala-sbt", artifactId = "sbt" }
+]
diff --git a/build.sbt b/build.sbt
index c910bf5..2fd2d9c 100644
--- a/build.sbt
+++ b/build.sbt
@@ -1,17 +1,16 @@
-ThisBuild / tlBaseVersion := "0.25"
+ThisBuild / tlBaseVersion := "1.0"
 ThisBuild / developers := List(
   tlGitHubDev("rossabaker", "Ross A. Baker")
 )
 
 val Scala213 = "2.13.10"
-ThisBuild / crossScalaVersions := Seq("2.12.17", Scala213, "3.2.1")
-ThisBuild / scalaVersion := Scala213
+ThisBuild / crossScalaVersions := Seq(Scala213, "3.2.1")
 
 lazy val root = tlCrossRootProject.aggregate(scalatags)
 
-val http4sVersion = "0.23.17"
+val http4sVersion = "1.0.0-M38"
 val scalatagsVersion = "0.12.0"
-val munitVersion = "1.0.0-M6"
+val munitVersion = "1.0.0-M7"
 val munitCatsEffectVersion = "2.0.0-M3"
 
 lazy val scalatags = crossProject(JVMPlatform, JSPlatform, NativePlatform)
diff --git a/scalatags/src/main/scala/org/http4s/scalatags/ScalatagsInstances.scala b/scalatags/src/main/scala/org/http4s/scalatags/ScalatagsInstances.scala
index 7e699f5..19a4786 100644
--- a/scalatags/src/main/scala/org/http4s/scalatags/ScalatagsInstances.scala
+++ b/scalatags/src/main/scala/org/http4s/scalatags/ScalatagsInstances.scala
@@ -23,16 +23,15 @@ import org.http4s.Charset.`UTF-8`
 import org.http4s.headers.`Content-Type`
 
 trait ScalatagsInstances {
-  implicit def scalatagsEncoder[F[_], C <: Frag[_, String]](implicit
+  implicit def scalatagsEncoder[C <: Frag[_, String]](implicit
       charset: Charset = `UTF-8`
-  ): EntityEncoder[F, C] =
+  ): EntityEncoder.Pure[C] =
     contentEncoder(MediaType.text.html)
 
-  private def contentEncoder[F[_], C <: Frag[_, String]](
+  private def contentEncoder[C <: Frag[_, String]](
       mediaType: MediaType
-  )(implicit charset: Charset): EntityEncoder[F, C] =
-    EntityEncoder
-      .stringEncoder[F]
+  )(implicit charset: Charset): EntityEncoder.Pure[C] =
+    EntityEncoder.stringEncoder
       .contramap[C](content => content.render)
       .withContentType(`Content-Type`(mediaType, charset))
 
@@ -44,8 +43,7 @@ trait ScalatagsInstances {
   private def doctypeContentEncoder[F[_]](
       mediaType: MediaType
   )(implicit charset: Charset): EntityEncoder[F, doctype] =
-    EntityEncoder
-      .stringEncoder[F]
+    EntityEncoder.stringEncoder
       .contramap[doctype](content => content.render)
       .withContentType(`Content-Type`(mediaType, charset))
 }