Sourced from json's releases.

v2.13.1

What's Changed

• Fix support for older compilers without __builtin_cpu_supports.

Full Changelog: https://github.com/ruby/json/compare/v2.13.0...v2.13.1

v2.13.0

What's Changed

• Add new allow_duplicate_key parsing options. By default a warning is now emitted when a duplicated key is encountered. In json 3.0 an error will be raised.
• Optimize parsing further using SIMD to scan strings.

Full Changelog: https://github.com/ruby/json/compare/v2.12.2...v2.13.0

Sourced from json's changelog.

2025-07-24 (2.13.1)

• Fix support for older compilers without __builtin_cpu_supports.

2025-07-17 (2.13.0)

• Add new allow_duplicate_key parsing options. By default a warning is now emitted when a duplicated key is encountered. In json 3.0 an error will be raised.
• Optimize parsing further using SIMD to scan strings.

• cfe9337 Release 2.13.1
• 35e3c09 Merge pull request #828 from byroot/check-builtin-cpu
• da87843 Don't assume __builtin_cpu_supports exists
• babdd2c Merge pull request #826 from jhawthorn/wbcheck_configure
• c24342d Fix missing write barrier on Generator State
• 8d08494 Release 2.13.0
• 37e6890 Fix mistake in jruby Rakefile
• 9b6ac43 Merge pull request #825 from samyron/fix-jruby-java-build
• 90680fa Use File::PATH_SEPARATOR instead of java.lang.System.getProperty.
• b362c08 Use the platform native path.separator when building using JRuby.
• Additional commits viewable in compare view

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