diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 5fe115b6..00000000
--- a/.travis.yml
+++ /dev/null
@@ -1,50 +0,0 @@
-language: scala
-
-scala:
-  - 2.11.12
-
-jdk: 
-  - openjdk8
-
-os:
-  - linux
-  
-dist: bionic
-
-stages:
-- name: test
-- name: release
-  if: (branch = master AND type = push) OR (tag IS present)
-
-jobs:
-  include:
-  # stage="test" if no stage is specified
-  - env: TEST="scalafmt"
-    script: ./scripts/scalafmt --test
-  - env: TEST="linux"
-    before_install: ./scripts/travis-os-setup.sh
-    script: sbt +test doc
-  - env: TEST="linux"
-    jdk: openjdk11
-    before_install: ./scripts/travis-os-setup.sh
-    script: sbt +test
-  - stage: release
-    script: sbt ci-release
-
-cache:
-  directories:
-  - $HOME/.sbt/1.0/dependency
-  - $HOME/.sbt/boot/scala*
-  - $HOME/.sbt/launchers
-  - $HOME/.ivy2/cache
-  - $HOME/.coursier
-
-before_cache:
-- du -h -d 1 $HOME/.ivy2/cache
-- du -h -d 2 $HOME/.sbt/
-- find $HOME/.sbt -name "*.lock" -type f -delete
-- find $HOME/.ivy2/cache -name "ivydata-*.properties" -type f -delete
-- rm -rf $HOME/.ivy2/local
-
-before_install:
-- git fetch --tags
diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index d8966869..00000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,14 +0,0 @@
-version: '{build}'
-os: Windows Server 2012
-install:
-  - cmd: choco install sbt -ia "INSTALLDIR=""C:\sbt"""
-  - cmd: SET PATH=C:\sbt\bin;%JAVA_HOME%\bin;%PATH%
-  - cmd: SET SBT_OPTS=-XX:MaxPermSize=2g -Xmx4g
-build_script:
-  - sbt clean compile
-test_script:
-  - sbt test
-  - sbt doc
-cache:
-  - C:\sbt\
-  - C:\Users\appveyor\.ivy2
diff --git a/scripts/scalafmt b/scripts/scalafmt
index 0d1dfd91..e5599284 100755
--- a/scripts/scalafmt
+++ b/scripts/scalafmt
@@ -4,7 +4,7 @@
 # set -x
 
 HERE="`dirname $0`"
-VERSION="3.4.3"
+VERSION="3.5.8"
 COURSIER="$HERE/.coursier"
 SCALAFMT="$HERE/.scalafmt-$VERSION"
 
diff --git a/scripts/travis-os-setup.sh b/scripts/travis-os-setup.sh
deleted file mode 100755
index df1eb47e..00000000
--- a/scripts/travis-os-setup.sh
+++ /dev/null
@@ -1,19 +0,0 @@
-#!/usr/bin/env bash
-# For Scala Native 0.4.0+
-# macOS or Linux - Ubuntu bionic (18.04)
-
-# Enable strict mode and fail the script on non-zero exit code,
-# unresolved variable or pipe failure.
-set -euo pipefail
-IFS=$'\n\t'
-
-# Install for Boehm GC is optional
-if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then
-    brew install bdw-gc
-else
-    # Per https://github.com/scala-native/scala-native/pull/1240/
-    sudo apt-get update
-
-    # Install libraries
-    sudo apt-get install -y clang-6.0 zlib1g-dev libgc-dev
-fi