Added 4.0.10 release announcement

Author: hsbt

_posts/2026-04-08-4.0.10-released.md

@@ -0,0 +1,67 @@
+---
+title: 4.0.10 Released
+layout: post
+author: Hiroshi SHIBATA
+author_email: hsbt@ruby-lang.org
+---
+
+RubyGems 4.0.10 includes enhancements and bug fixes and Bundler 4.0.10 includes enhancements and bug fixes.
+
+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=4.0.10
+
+## RubyGems Release Notes
+
+
+### Enhancements:
+
+* Ignore warnings with spec different platforms. Pull request [#8508](https://github.com/ruby/rubygems/pull/8508) by hsbt
+* Better algorithm for sorting gem version. Pull request [#9421](https://github.com/ruby/rubygems/pull/9421) by Edouard-chin
+* Update SPDX license list as of 2026-02-20. Pull request [#9434](https://github.com/ruby/rubygems/pull/9434) by hsbt
+* Installs bundler 4.0.10 as a default gem.
+
+### Bug fixes:
+
+* Register native extension files in default spec map. Pull request [#9431](https://github.com/ruby/rubygems/pull/9431) by hsbt
+* Fix NoMethodError in Gem.try_activate when activation conflicts occur. Pull request [#9404](https://github.com/ruby/rubygems/pull/9404) by hsbt
+
+
+## Bundler Release Notes
+
+
+### Enhancements:
+
+* Ignore warnings with spec different platforms. Pull request [#8508](https://github.com/ruby/rubygems/pull/8508) by hsbt
+* Improve error message when current platform is not in lockfile. Pull request [#9439](https://github.com/ruby/rubygems/pull/9439) by 55728
+* Cache package version selection. Pull request [#9410](https://github.com/ruby/rubygems/pull/9410) by Edouard-chin
+* Check happy path first when comparing gem version. Pull request [#9417](https://github.com/ruby/rubygems/pull/9417) by Edouard-chin
+* [feature] default_cli_command for config what command bundler runs when no specific command is provided. Pull request [#8886](https://github.com/ruby/rubygems/pull/8886) by jonbarlo
+* Introduce a fast path for comparing Gem::Version. Pull request [#9414](https://github.com/ruby/rubygems/pull/9414) by Edouard-chin
+
+### Bug fixes:
+
+* Restore rb_sys dependency for Rust. Pull request [#9416](https://github.com/ruby/rubygems/pull/9416) by bangseongbeom
+
+
+## Manual Installation
+
+To install RubyGems by hand see the [Download RubyGems][download] page.
+
+SHA256 Checksums:
+
+* rubygems-4.0.10.tgz  
+  6a225b7a8883de45d90c9b3f7ee14391759b286030ba1d1d77588cd7282e6cc7
+* rubygems-4.0.10.zip  
+  edbb019691ef32e5e086595f54e1bc24bcfe5b9fe77e27aa893c7c752ef190d9
+* rubygems-update-4.0.10.gem  
+  bd9dcd20076e809467739c868df95bcd628744f63e3b63d9df169d6223dabf6d
+
+
+[download]: https://rubygems.org/pages/download
+