diff --git a/.rubocop_rspec_base.yml b/.rubocop_rspec_base.yml
index a98671e063..f02ab339c2 100644
--- a/.rubocop_rspec_base.yml
+++ b/.rubocop_rspec_base.yml
@@ -1,4 +1,4 @@
-# This file was generated on 2020-04-03T18:53:21+03:00 from the rspec-dev repo.
+# This file was generated on 2020-09-27T11:20:41+02:00 from the rspec-dev repo.
 # DO NOT modify it by hand as your changes will get lost the next time it is generated.
 
 # This file contains defaults for RSpec projects. Individual projects
diff --git a/.travis.yml b/.travis.yml
index be28f89136..5db6cb9368 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,4 @@
-# This file was generated on 2020-04-03T18:53:21+03:00 from the rspec-dev repo.
+# This file was generated on 2020-09-27T11:20:41+02:00 from the rspec-dev repo.
 # DO NOT modify it by hand as your changes will get lost the next time it is generated.
 
 # In order to install old Rubies, we need to use old Ubuntu distibution.
@@ -26,6 +26,7 @@ rvm:
   - 2.5.8
   - 2.6.6
   - 2.7.1
+  - ruby-3.0.0-preview1
   - ruby-head
   - ree
   - rbx-3
@@ -38,11 +39,10 @@ matrix:
   include:
     - rvm: jruby-1.7
       env: JRUBY_OPTS='--dev --1.8'
-    - rvm: 2.7.1
-      env: DIFF_LCS_VERSION="~> 1.3.0"
   allow_failures:
     - rvm: jruby-head
     - rvm: ruby-head
+    - rvm: ruby-3.0.0-preview1
     - rvm: rbx-3
   fast_finish: true
 branches:
diff --git a/appveyor.yml b/appveyor.yml
index 56a7cc2451..1e441b4b47 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -1,4 +1,4 @@
-# This file was generated on 2020-04-03T18:53:21+03:00 from the rspec-dev repo.
+# This file was generated on 2020-09-27T11:20:41+02:00 from the rspec-dev repo.
 # DO NOT modify it by hand as your changes will get lost the next time it is generated.
 
 version: "{build}"
diff --git a/script/clone_all_rspec_repos b/script/clone_all_rspec_repos
index 9a741818c5..a88ad7950c 100755
--- a/script/clone_all_rspec_repos
+++ b/script/clone_all_rspec_repos
@@ -1,5 +1,5 @@
 #!/bin/bash
-# This file was generated on 2020-04-03T18:53:21+03:00 from the rspec-dev repo.
+# This file was generated on 2020-09-27T11:20:41+02:00 from the rspec-dev repo.
 # DO NOT modify it by hand as your changes will get lost the next time it is generated.
 
 set -e
diff --git a/script/functions.sh b/script/functions.sh
index 713b9fb2e7..098ed9fd6a 100644
--- a/script/functions.sh
+++ b/script/functions.sh
@@ -1,4 +1,4 @@
-# This file was generated on 2020-04-03T18:53:21+03:00 from the rspec-dev repo.
+# This file was generated on 2020-09-27T11:20:41+02:00 from the rspec-dev repo.
 # DO NOT modify it by hand as your changes will get lost the next time it is generated.
 
 SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
diff --git a/script/predicate_functions.sh b/script/predicate_functions.sh
index b733b725bb..645046411a 100644
--- a/script/predicate_functions.sh
+++ b/script/predicate_functions.sh
@@ -1,4 +1,4 @@
-# This file was generated on 2020-04-03T18:53:21+03:00 from the rspec-dev repo.
+# This file was generated on 2020-09-27T11:20:41+02:00 from the rspec-dev repo.
 # DO NOT modify it by hand as your changes will get lost the next time it is generated.
 
 function is_mri {
diff --git a/script/run_build b/script/run_build
index b5958fb8f2..6c4267c7f5 100755
--- a/script/run_build
+++ b/script/run_build
@@ -1,5 +1,5 @@
 #!/bin/bash
-# This file was generated on 2020-04-03T18:53:21+03:00 from the rspec-dev repo.
+# This file was generated on 2020-09-27T11:20:41+02:00 from the rspec-dev repo.
 # DO NOT modify it by hand as your changes will get lost the next time it is generated.
 
 set -e
diff --git a/script/travis_functions.sh b/script/travis_functions.sh
index 725c1184c5..93055c1889 100644
--- a/script/travis_functions.sh
+++ b/script/travis_functions.sh
@@ -1,4 +1,4 @@
-# This file was generated on 2020-04-03T18:53:21+03:00 from the rspec-dev repo.
+# This file was generated on 2020-09-27T11:20:41+02:00 from the rspec-dev repo.
 # DO NOT modify it by hand as your changes will get lost the next time it is generated.
 
 # Taken from:
diff --git a/script/update_rubygems_and_install_bundler b/script/update_rubygems_and_install_bundler
index 4ceb930cd8..382cf7b407 100755
--- a/script/update_rubygems_and_install_bundler
+++ b/script/update_rubygems_and_install_bundler
@@ -1,5 +1,5 @@
 #!/bin/bash
-# This file was generated on 2020-04-03T18:53:21+03:00 from the rspec-dev repo.
+# This file was generated on 2020-09-27T11:20:41+02:00 from the rspec-dev repo.
 # DO NOT modify it by hand as your changes will get lost the next time it is generated.
 
 set -e