diff --git a/CHANGELOG.md b/CHANGELOG.md
index fa0148793..9678d7362 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,33 @@
 ## [Unreleased]
 
 
+## [v287] - 2024-12-25
+
+- Ruby 3.4.0 is now available (https://github.com/heroku/heroku-buildpack-ruby/pull/1531)
+- Ruby 3.4.1 is now available (https://github.com/heroku/heroku-buildpack-ruby/pull/1531)
+
+## [v286] - 2024-12-13
+
+- Ruby 3.4.0-rc1 is now available (https://github.com/heroku/heroku-buildpack-ruby/pull/1528)
+
+## [v285] - 2024-11-21
+
+- Default `UV_USE_IO_URING=0` due to build timeouts [context](https://github.com/heroku/heroku-buildpack-nodejs/pull/1347) (https://github.com/heroku/heroku-buildpack-ruby/pull/1523)
+
+## [v284] - 2024-11-15
+
+- Default Node.js version now 22.11.0 (https://github.com/heroku/heroku-buildpack-ruby/pull/1503)
+- Default Yarn version now 1.22.22 (https://github.com/heroku/heroku-buildpack-ruby/pull/1503)
+
+## [v283] - 2024-11-14
+
+- No customer facing changes
+
+## [v282] - 2024-11-08
+
+- [Rolled back] Default Node.js version now 22.11.0 (https://github.com/heroku/heroku-buildpack-ruby/pull/1503)
+- [Rolled back] Default Yarn version now 1.22.22 (https://github.com/heroku/heroku-buildpack-ruby/pull/1503)
+
 ## [v281] - 2024-11-07
 
 - Ruby 3.3.6 is now available (https://github.com/heroku/heroku-buildpack-ruby/pull/1511)
@@ -1584,7 +1611,13 @@ Bugfixes:
 * Change gem detection to use lockfile parser
 * use `$RACK_ENV` when thin is detected for rack apps
 
-[unreleased]: https://github.com/heroku/heroku-buildpack-ruby/compare/v281...main
+[unreleased]: https://github.com/heroku/heroku-buildpack-ruby/compare/v287...main
+[v287]: https://github.com/heroku/heroku-buildpack-ruby/compare/v286...v287
+[v286]: https://github.com/heroku/heroku-buildpack-ruby/compare/v285...v286
+[v285]: https://github.com/heroku/heroku-buildpack-ruby/compare/v284...v285
+[v284]: https://github.com/heroku/heroku-buildpack-ruby/compare/v283...v284
+[v283]: https://github.com/heroku/heroku-buildpack-ruby/compare/v282...v283
+[v282]: https://github.com/heroku/heroku-buildpack-ruby/compare/v281...v282
 [v281]: https://github.com/heroku/heroku-buildpack-ruby/compare/v280...v281
 [v280]: https://github.com/heroku/heroku-buildpack-ruby/compare/v279...v280
 [v279]: https://github.com/heroku/heroku-buildpack-ruby/compare/v278...v279
diff --git a/Gemfile.lock b/Gemfile.lock
index 5c0085fa5..86917b001 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -2,7 +2,8 @@ GEM
   remote: https://rubygems.org/
   specs:
     base64 (0.2.0)
-    ci-queue (0.55.0)
+    ci-queue (0.59.0)
+      logger
     citrus (3.0.2)
     connection_pool (2.4.1)
     dead_end (4.0.0)
@@ -23,6 +24,7 @@ GEM
       thor (~> 1)
       threaded (~> 0)
     json (2.7.2)
+    logger (1.6.2)
     moneta (1.0.0)
     multi_json (1.15.0)
     parallel (1.25.1)
@@ -34,7 +36,7 @@ GEM
       rate_throttle_client (~> 0.1.0)
     rake (13.2.1)
     rate_throttle_client (0.1.2)
-    redis (5.2.0)
+    redis (5.3.0)
       redis-client (>= 0.22.0)
     redis-client (0.22.2)
       connection_pool
diff --git a/app.json b/app.json
index f0c801d15..514ddad23 100644
--- a/app.json
+++ b/app.json
@@ -20,7 +20,7 @@
       },
       "scripts": {
         "test-setup": "bundle exec rake hatchet:setup_ci",
-        "test": "bundle exec rspec-queue --max-requeues=3 --timeout 180 --queue $REDIS_URL || { cat log/test_order.log;  $(exit 1); }"
+        "test": "bundle exec rspec-queue --max-requeues=3 --timeout 180 --queue $REDIS_URL --format documentation || { cat log/test_order.log;  $(exit 1); }"
       },
       "buildpacks": [
         {
diff --git a/changelogs/v284/node-yarn.md b/changelogs/v284/node-yarn.md
new file mode 100644
index 000000000..b469a66de
--- /dev/null
+++ b/changelogs/v284/node-yarn.md
@@ -0,0 +1,8 @@
+## Ruby apps now default to Node version 22.11.0 and Yarn version 1.22.22
+
+Applications using the `heroku/ruby` buildpack that do not have a version of Node installed by another buildpack (such as the `heroku/nodejs` buildpack) will now receive:
+
+- Node version 22.11.0
+- Yarn version 1.22.22
+
+These versions and instructions on how to specify a specific version of these binaries can be found on the [installed binaries section of the Heroku Ruby Support page](https://devcenter.heroku.com/articles/ruby-support#installed-binaries).
diff --git a/changelogs/v286/3.4.0-rc1.md b/changelogs/v286/3.4.0-rc1.md
new file mode 100644
index 000000000..c26eed3c8
--- /dev/null
+++ b/changelogs/v286/3.4.0-rc1.md
@@ -0,0 +1,15 @@
+## Ruby version 3.4.0-rc1 is now available
+
+[Ruby v3.4.0-rc1](/articles/ruby-support-reference#ruby-versions) is now available on Heroku. To run your app using this version of Ruby, add the following `ruby` directive to your Gemfile:
+
+```ruby
+ruby "3.4.0.rc1"
+```
+
+For more information on [Ruby 3.4.0-rc1, you can view the release announcement](https://www.ruby-lang.org/en/news/).
+
+> Note
+> This version of Ruby is not suitable for production applications.
+> However, it can be used to test that your application is ready for
+> the official release of Ruby 3.4.0 and
+> to provide feedback to the Ruby core team.
diff --git a/changelogs/v287/ruby_3.4.0.md b/changelogs/v287/ruby_3.4.0.md
new file mode 100644
index 000000000..b63ee6503
--- /dev/null
+++ b/changelogs/v287/ruby_3.4.0.md
@@ -0,0 +1,9 @@
+## Ruby version 3.4.0 is now available
+
+[Ruby v3.4.0](/articles/ruby-support-reference#ruby-versions) is now available on Heroku. To run your app using this version of Ruby, add the following `ruby` directive to your Gemfile:
+
+```ruby
+ruby "3.4.0"
+```
+
+For more information on [Ruby 3.4.0, you can view the release announcement](https://www.ruby-lang.org/en/news/).
diff --git a/lib/language_pack/fetcher.rb b/lib/language_pack/fetcher.rb
index 47efef863..b814c9f7f 100644
--- a/lib/language_pack/fetcher.rb
+++ b/lib/language_pack/fetcher.rb
@@ -26,9 +26,10 @@ def fetch(path)
       run!(curl, error_class: FetchError)
     end
 
-    def fetch_untar(path, files_to_extract = nil)
+    def fetch_untar(path, files_to_extract = nil, strip_components: 0)
       curl = curl_command("#{@host_url.join(path)} -s -o")
-      run! "#{curl} - | tar zxf - #{files_to_extract}",
+      tar_cmd = ["tar zxf - #{files_to_extract}", "--strip #{strip_components}"]
+      run! "#{curl} - | #{tar_cmd.join(" ")}",
         error_class: FetchError,
         max_attempts: 3
     end
diff --git a/lib/language_pack/helpers/nodebin.rb b/lib/language_pack/helpers/nodebin.rb
index 7632e8366..c71398658 100644
--- a/lib/language_pack/helpers/nodebin.rb
+++ b/lib/language_pack/helpers/nodebin.rb
@@ -1,8 +1,8 @@
 require 'json'
 
 class LanguagePack::Helpers::Nodebin
-  NODE_VERSION = "20.9.0"
-  YARN_VERSION = "1.22.19"
+  NODE_VERSION = "22.11.0"
+  YARN_VERSION = "1.22.22"
 
   def self.hardcoded_node_lts(arch: )
     arch = "x64" if arch == "amd64"
diff --git a/lib/language_pack/helpers/yarn_installer.rb b/lib/language_pack/helpers/yarn_installer.rb
index 49a4e777c..2aae36f2a 100644
--- a/lib/language_pack/helpers/yarn_installer.rb
+++ b/lib/language_pack/helpers/yarn_installer.rb
@@ -21,10 +21,10 @@ def binary_path
   def install
     Dir.mktmpdir do |dir|
       Dir.chdir(dir) do
-        @fetcher.fetch_untar(@url)
+        @fetcher.fetch_untar(@url, strip_components: 1)
       end
 
-      FileUtils.mv(File.join(dir, name), name)
+      FileUtils.cp_r(dir, name)
     end
   end
 end
diff --git a/lib/language_pack/ruby.rb b/lib/language_pack/ruby.rb
index 4eec31704..18149c903 100644
--- a/lib/language_pack/ruby.rb
+++ b/lib/language_pack/ruby.rb
@@ -973,6 +973,11 @@ def add_node_js_binary
       version = @node_installer.version
       old_version = @metadata.fetch("default_node_version") { version }
 
+      # Make available for `rake assets:precompile` and other sub-shells
+      ENV["UV_USE_IO_URING"] ||= "0"
+      # Make available to future buildpacks (export), but not runtime (profile.d)
+      set_export_default "UV_USE_IO_URING", "0"
+
       if version != version
         warn(<<~WARNING, inline: true)
           Default version of Node.js changed (#{old_version} to #{version})
@@ -1006,6 +1011,11 @@ def add_yarn_binary
       version = @yarn_installer.version
       old_version = @metadata.fetch("default_yarn_version") { version }
 
+      # Make available for `rake assets:precompile` and other sub-shells
+      ENV["UV_USE_IO_URING"] ||= "0"
+      # Make available to future buildpacks (export), but not runtime (profile.d)
+      set_export_default "UV_USE_IO_URING", "0"
+
       if version != version
         warn(<<~WARNING, inline: true)
           Default version of Yarn changed (#{old_version} to #{version})
diff --git a/lib/language_pack/version.rb b/lib/language_pack/version.rb
index 82778b71b..1143c73e1 100644
--- a/lib/language_pack/version.rb
+++ b/lib/language_pack/version.rb
@@ -2,6 +2,6 @@
 
 module LanguagePack
   class LanguagePack::Base
-    BUILDPACK_VERSION = "v281"
+    BUILDPACK_VERSION = "v287"
   end
 end
diff --git a/spec/hatchet/rubies_spec.rb b/spec/hatchet/rubies_spec.rb
index 22e029111..55e7c23b0 100644
--- a/spec/hatchet/rubies_spec.rb
+++ b/spec/hatchet/rubies_spec.rb
@@ -13,15 +13,16 @@
 end
 
 describe "Ruby versions" do
-  it "should deploy jdk on heroku-20" do
-    Hatchet::Runner.new("default_ruby", stack: "heroku-20").tap do |app|
+  it "should deploy jdk on heroku-24" do
+    Hatchet::Runner.new("default_ruby", stack: "heroku-24").tap do |app|
       app.before_deploy do |app|
         Pathname("Gemfile.lock").write(<<~EOM)
          GEM
            remote: https://rubygems.org/
            specs:
-             rack (2.2.2)
-             rake (13.0.1)
+             rack (3.1.8)
+             rake (13.2.1)
+             webrick (1.9.1)
 
          PLATFORMS
            java
@@ -29,10 +30,13 @@
          DEPENDENCIES
            rack
            rake
-
+           webrick
 
          RUBY VERSION
-            ruby 2.5.7p0 (jruby 9.2.13.0)
+            ruby 3.1.4p0 (jruby 9.4.8.0)
+
+         BUNDLED WITH
+            2.5.23
         EOM
 
         Pathname("Rakefile").write(<<~'EOM')
@@ -50,7 +54,7 @@
         app.push!
         expect(app.output).to match("JRUBY_OPTS is: --dev")
 
-        expect(app.run("ls .jdk/jre/lib/ext/")).to match("pgconfig.jar")
+        expect(app.run("ruby -v")).to match("jruby")
       end
     end
   end