Added 4.0.13 release announcement

Author: hsbt

_posts/2026-06-03-4.0.13-released.md

@@ -0,0 +1,63 @@
+---
+title: 4.0.13 Released
+layout: post
+author: Hiroshi SHIBATA
+author_email: hsbt@ruby-lang.org
+---
+
+RubyGems 4.0.13 includes enhancements and Bundler 4.0.13 includes enhancements, bug fixes and security.
+
+To update to the latest RubyGems you can run:
+
+    gem update --system [--pre]
+
+To update to the latest Bundler you can run:
+
+    gem install bundler [--pre]
+    bundle update --bundler=4.0.13
+
+## RubyGems Release Notes
+
+
+### Enhancements:
+
+* Prevent extraction from escaping destination_dir via pre-existing symlinks. Pull request [#9493](https://github.com/ruby/rubygems/pull/9493) by thesmartshadow
+* Close stdin immediately when using popen2e. Pull request [#9540](https://github.com/ruby/rubygems/pull/9540) by rwstauner
+* Fallback to copy symlinks on Windows. Pull request [#9296](https://github.com/ruby/rubygems/pull/9296) by larskanis
+* Installs bundler 4.0.13 as a default gem.
+
+
+## Bundler Release Notes
+
+
+### Enhancements:
+
+* Do not hard-code permissions for new gem directories during bundle install. Pull request [#9557](https://github.com/ruby/rubygems/pull/9557) by maxfelsher-cgi
+* Clear gem specification cache after acquiring process lock. Pull request [#9310](https://github.com/ruby/rubygems/pull/9310) by ngan
+* Show release date with bundle outdated. Pull request [#9337](https://github.com/ruby/rubygems/pull/9337) by hsbt
+
+### Bug fixes:
+
+* Apply cooldown to locally installed gem versions. Pull request [#9582](https://github.com/ruby/rubygems/pull/9582) by hsbt
+
+### Security:
+
+* Add `cooldown` to delay newly published gem. Pull request [#9576](https://github.com/ruby/rubygems/pull/9576) by hsbt
+
+
+## Manual Installation
+
+To install RubyGems by hand see the [Download RubyGems][download] page.
+
+SHA256 Checksums:
+
+* rubygems-4.0.13.tgz  
+  91088b66de3e57b3865251610a06254e88f5cf268521cd9fd3c9559a33c5a567
+* rubygems-4.0.13.zip  
+  7b9d20fec6503d738de6b954dbd506bc8ee9ff9266f47f6f382b60464033faa7
+* rubygems-update-4.0.13.gem  
+  80dabc8ce1243c2d7c4b32f8898df56fc03db5f616ca1cb35bc5af5a8bf1a3e4
+
+
+[download]: https://rubygems.org/pages/download
+