Added 4.0.0.beta1 release announcement

Author: hsbt

_posts/2025-11-20-4.0.0.beta1-released.md

@@ -0,0 +1,117 @@
+---
+title: 4.0.0.beta1 Released
+layout: post
+author: Hiroshi SHIBATA
+author_email: hsbt@ruby-lang.org
+---
+
+RubyGems 4.0.0.beta1 includes security, breaking changes, deprecations, features, performance, enhancements and documentation.
+
+To update to the latest RubyGems you can run:
+
+    gem update --system
+
+To install RubyGems by hand see the [Download RubyGems][download] page.
+
+
+_### Security:_
+
+* Bump up vendored URI to 1.0.4. Pull request
+  [#9031](https://github.com/ruby/rubygems/pull/9031) by hsbt
+
+_### Breaking changes:_
+
+* Removed deprecated `-C` option from gem build. Pull request
+  [#9088](https://github.com/ruby/rubygems/pull/9088) by hsbt
+* Removed deprecated Gem::Specification#has_rdoc, has_rdoc= and has_rdoc?.
+  Pull request [#9084](https://github.com/ruby/rubygems/pull/9084) by hsbt
+* Removed deprecated `gem query` command. Pull request
+  [#9083](https://github.com/ruby/rubygems/pull/9083) by hsbt
+* Removed deprecated Gem::DependencyInstaller#find_gems_with_sources. Pull
+  request [#9082](https://github.com/ruby/rubygems/pull/9082) by hsbt
+* Remove deprecated methods of RubyGems. Pull request
+  [#9081](https://github.com/ruby/rubygems/pull/9081) by hsbt
+* Make verification methods private. Pull request
+  [#9051](https://github.com/ruby/rubygems/pull/9051) by tenderlove
+* Deprecate `--default` option from install command. Pull request
+  [#7588](https://github.com/ruby/rubygems/pull/7588) by hsbt
+* Switch to 4.0.0.dev in development version. Pull request
+  [#9002](https://github.com/ruby/rubygems/pull/9002) by hsbt
+* Removed `compatibility.rb` for RG 4.0. Pull request
+  [#8899](https://github.com/ruby/rubygems/pull/8899) by hsbt
+
+_### Deprecations:_
+
+* Deprecate `Gem::Specification#datadir`. Pull request
+  [#8900](https://github.com/ruby/rubygems/pull/8900) by hsbt
+
+_### Features:_
+
+* Undeprecate `Gem::Version.new(nil)`. Pull request
+  [#9086](https://github.com/ruby/rubygems/pull/9086) by tenderlove
+* Add pattern matching support to Gem::NameTuple. Pull request
+  [#9064](https://github.com/ruby/rubygems/pull/9064) by baweaver
+* Add pattern matching support to Gem::Platform. Pull request
+  [#9062](https://github.com/ruby/rubygems/pull/9062) by baweaver
+
+_### Performance:_
+
+* Remove some memoization. Pull request
+  [#9017](https://github.com/ruby/rubygems/pull/9017) by tenderlove
+* Pull `Gem.win_platform?` out of a hot path. Pull request
+  [#8983](https://github.com/ruby/rubygems/pull/8983) by tenderlove
+* Stop trying to remove every file on extraction. Pull request
+  [#8974](https://github.com/ruby/rubygems/pull/8974) by tenderlove
+* Use `IO.copy_stream` with IO object directly. Pull request
+  [#8970](https://github.com/ruby/rubygems/pull/8970) by tenderlove
+* Pass a file size to `IO.copy_stream`. Pull request
+  [#8966](https://github.com/ruby/rubygems/pull/8966) by tenderlove
+* Use File#chmod rather than FileUtils.chmod. Pull request
+  [#8965](https://github.com/ruby/rubygems/pull/8965) by tenderlove
+
+_### Enhancements:_
+
+* Update all vendored libraries to latest version. Pull request
+  [#9089](https://github.com/ruby/rubygems/pull/9089) by hsbt
+* Removed unused `Gem::Deprecate`. Pull request
+  [#9090](https://github.com/ruby/rubygems/pull/9090) by hsbt
+* Test all tests of `make test-all` by ruby core. Pull request
+  [#9075](https://github.com/ruby/rubygems/pull/9075) by hsbt
+* Add debug logging information to see the time it took to download and
+  install a gem. Pull request
+  [#9066](https://github.com/ruby/rubygems/pull/9066) by Edouard-chin
+* Use `assert_ractor` for testing Ractor. Pull request
+  [#9069](https://github.com/ruby/rubygems/pull/9069) by hsbt
+* Fix constants in TAR to be frozen. Pull request
+  [#9041](https://github.com/ruby/rubygems/pull/9041) by tenderlove
+* Remove open-ended and prerelease dependency warnings when building gems.
+  Pull request [#9050](https://github.com/ruby/rubygems/pull/9050) by
+  jeremyevans
+* Revamp CmakeBuilder. Pull request
+  [#8753](https://github.com/ruby/rubygems/pull/8753) by cfis
+* Restrict what schemes are acceptable in the remote fetcher. Pull request
+  [#9022](https://github.com/ruby/rubygems/pull/9022) by tenderlove
+* Don't fail if there is no makefile, simply don't do anything. Pull
+  request [#8879](https://github.com/ruby/rubygems/pull/8879) by ioquatix
+* Installs bundler 4.0.0.beta1 as a default gem.
+
+_### Documentation:_
+
+* [DOC] Fix the location of Gem::Deprecate document. Pull request
+  [#9065](https://github.com/ruby/rubygems/pull/9065) by nobu
+* Fix typo. Pull request
+  [#9012](https://github.com/ruby/rubygems/pull/9012) by etiennebarrie
+
+
+SHA256 Checksums:
+
+* rubygems-4.0.0.beta1.tgz  
+  d0c63c72f1114efbd9234ccf0d635e1cb1b3d67e9f4cee12f3174cbab0f1bc6b
+* rubygems-4.0.0.beta1.zip  
+  3843fa0a72cbdfb7c4997ac3ef21bf5aeda7deca2bde00633109f90530692d98
+* rubygems-update-4.0.0.beta1.gem  
+  d834c812b01bd54469d57b9d7b031389bdc52a0e5f27e13452c6464d91f3c2dd
+
+
+[download]: https://rubygems.org/pages/download
+