diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0cfed7906..ff18d7c02 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 ## Main (unreleased)
 
+## v263 (2023/12/11)
+
+- Ruby 3.3.0-rc1 is now available (https://github.com/heroku/heroku-buildpack-ruby/pull/1411)
 - Fix BUILDPACK_VENDOR_URL support (https://github.com/heroku/heroku-buildpack-ruby/pull/1406)
 
 ## v262 (2023/11/08)
diff --git a/changelogs/v263/ruby-330-rc1.md b/changelogs/v263/ruby-330-rc1.md
new file mode 100644
index 000000000..56e74afe3
--- /dev/null
+++ b/changelogs/v263/ruby-330-rc1.md
@@ -0,0 +1,15 @@
+## Ruby version 3.3.0-rc1 is now available
+
+[Ruby v3.3.0-rc1](/articles/ruby-support#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 "3.3.0.rc1"
+```
+
+For more information on [Ruby 3.3.0-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 3.3.0 and
+      to provide feedback to the Ruby core team.
diff --git a/lib/language_pack/version.rb b/lib/language_pack/version.rb
index 98fef1a97..ba1f83000 100644
--- a/lib/language_pack/version.rb
+++ b/lib/language_pack/version.rb
@@ -2,6 +2,6 @@
 
 module LanguagePack
   class LanguagePack::Base
-    BUILDPACK_VERSION = "v262"
+    BUILDPACK_VERSION = "v263"
   end
 end