Added 4.0.17 release announcement

Author: hsbt

_posts/2026-07-22-4.0.17-released.md

@@ -0,0 +1,70 @@
+---
+title: 4.0.17 Released
+layout: post
+author: Hiroshi SHIBATA
+author_email: hsbt@ruby-lang.org
+---
+
+RubyGems 4.0.17 includes enhancements and bug fixes and Bundler 4.0.17 includes enhancements, bug fixes and documentation.
+
+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=4.0.17
+
+## RubyGems Release Notes
+
+
+### Enhancements:
+
+* Validate spec name before writing to the spec cache. Pull request [#9690](https://github.com/ruby/rubygems/pull/9690) by hsbt
+* Installs bundler 4.0.17 as a default gem.
+
+### Bug fixes:
+
+* Unquote Gem.ruby when spawning it as a separate argv element. Pull request [#9695](https://github.com/ruby/rubygems/pull/9695) by hsbt
+* Escape glob metacharacters in install paths when globbing. Pull request [#9687](https://github.com/ruby/rubygems/pull/9687) by hsbt
+* Preserve Windows editor paths in gem open and bundle open. Pull request [#9694](https://github.com/ruby/rubygems/pull/9694) by hsbt
+* Preserve Windows paths in MAKE and rake environment variables. Pull request [#9693](https://github.com/ruby/rubygems/pull/9693) by hsbt
+* Fix `bundle` binstub broken by `gem update --system` on Homebrew ruby. Pull request [#9688](https://github.com/ruby/rubygems/pull/9688) by hsbt
+
+
+## Bundler Release Notes
+
+
+### Enhancements:
+
+* Open compact index cache in binary mode when appending. Pull request [#9679](https://github.com/ruby/rubygems/pull/9679) by hsbt
+
+### Bug fixes:
+
+* Unquote Gem.ruby when spawning it as a separate argv element. Pull request [#9695](https://github.com/ruby/rubygems/pull/9695) by hsbt
+* Escape glob metacharacters in install paths when globbing. Pull request [#9687](https://github.com/ruby/rubygems/pull/9687) by hsbt
+* Avoid space-containing absolute path in RUBYOPT. Pull request [#9696](https://github.com/ruby/rubygems/pull/9696) by hsbt
+* Preserve the locked Bundler checksum when the gem isn't cached. Pull request [#9658](https://github.com/ruby/rubygems/pull/9658) by rwstauner
+
+### Documentation:
+
+* Point Bundler gemspec metadata at the moved docs. Pull request [#9648](https://github.com/ruby/rubygems/pull/9648) by hsbt
+
+
+## Manual Installation
+
+To install RubyGems by hand see the [Download RubyGems][download] page.
+
+SHA256 Checksums:
+
+* rubygems-4.0.17.tgz  
+  5bbb245b7e7c1a01b1ef7fa95c35517ebf3be77815cbe3e63c97c3067b9a0d13
+* rubygems-4.0.17.zip  
+  4f3cf8d8d2250be984f7ee4516b3138d82054db7ee759ec6fc6839f4557b464b
+* rubygems-update-4.0.17.gem  
+  a3f458ae8fcf607602bb9ae111ac9a57036914c2e6bce7736418df504ec4e455
+
+
+[download]: https://rubygems.org/pages/download
+