Sourced from json's releases.

v2.14.0

What's Changed

• Add new allow_duplicate_key generator options. By default a warning is now emitted when a duplicated key is encountered. In json 3.0 an error will be raised.

  >> Warning[:deprecated] = true
  >> puts JSON.generate({ foo: 1, "foo" => 2 })
  (irb):2: warning: detected duplicate key "foo" in {foo: 1, "foo" => 2}.
  This will raise an error in json 3.0 unless enabled via `allow_duplicate_key: true`
  {"foo":1,"foo":2}
  >> JSON.generate({ foo: 1, "foo" => 2 }, allow_duplicate_key: false)
  detected duplicate key "foo" in {foo: 1, "foo" => 2} (JSON::GeneratorError)

• Fix JSON.generate strict: true mode to also restrict hash keys.
• Fix JSON::Coder to also invoke block for hash keys that aren't strings nor symbols.
• Fix JSON.unsafe_load usage with proc
• Fix the parser to more consistently reject invalid UTF-16 surogate pairs.

Full Changelog: ruby/json@v2.13.2...v2.14.0

Sourced from json's changelog.

Changes

Unreleased

• Add new allow_duplicate_key generator options. By default a warning is now emitted when a duplicated key is encountered. In json 3.0 an error will be raised.

  >> Warning[:deprecated] = true
  >> puts JSON.generate({ foo: 1, "foo" => 2 })
  (irb):2: warning: detected duplicate key "foo" in {foo: 1, "foo" => 2}.
  This will raise an error in json 3.0 unless enabled via `allow_duplicate_key: true`
  {"foo":1,"foo":2}
  >> JSON.generate({ foo: 1, "foo" => 2 }, allow_duplicate_key: false)
  detected duplicate key "foo" in {foo: 1, "foo" => 2} (JSON::GeneratorError)

• Fix JSON.generate strict: true mode to also restrict hash keys.
• Fix JSON::Coder to also invoke block for hash keys that aren't strings nor symbols.
• Fix JSON.unsafe_load usage with proc
• Fix the parser to more consistently reject invalid UTF-16 surogate pairs.

• 55552ca Release 2.14.0
• d334dbf Merge pull request #856 from robinetmiller/add-branch-coverage
• 08b9eb0 Only enable test coverage when running the test suite standalone
• 6bded94 Add branch test coverage when available. Force track all files to prevent imp...
• db89486 Regenerate the Java parser
• ddffd05 Merge pull request #858 from byroot/validate-surogate
• 5855f4f parser: Reject invalid surogate pairs more consistently.
• 618ab68 Merge pull request #857 from etiennebarrie/better-handle-missing-ostruct
• 6f6a4cd Better handle missing ostruct
• 1d0aee8 Merge pull request #855 from byroot/fix-coverage
• Additional commits viewable in compare view

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