Update json 2.7.6 → 2.8.1 (minor)

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Here is everything you need to know about this update. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ json (2.7.6 → 2.8.1) · Repo · Changelog

Release Notes

2.8.1

• Fix the java version of the package to include the extension implementation. Only concerns JRuby.

Full Changelog: v2.8.0...v2.8.1

2.8.0

What's Changed

• Emit a deprecation warning when JSON.load create custom types without the create_additions option being explictly enabled.
  • Prefer to use JSON.unsafe_load(string) or JSON.load(string, create_additions: true).
• Emit a deprecation warning when serializing valid UTF-8 strings encoded in ASCII_8BIT aka BINARY.
• Bump required Ruby version to 2.7.
• Add support for optionally parsing trailing commas, via allow_trailing_comma: true, which in cunjunction with the
  pre-existing support for comments, make it suitable to parse jsonc documents.
• Many performance improvements to JSON.parse and JSON.load, up to 1.7x faster on real world documents.
• Some minor performance improvements to JSON.dump and JSON.generate.

Parsing performance

Parsing performance is improved by 50-70% on realistic benchmarks, and even more on micro-benchmarks: https://gist.github.com/casperisfine/cf4b3a0594fae24b7d0eb93daaf3841a

== Parsing activitypub.json (58160 bytes)
ruby 3.4.0dev (2024-11-06T07:59:09Z precompute-hash-wh.. 7943f98a8a) +YJIT +PRISM [arm64-darwin24]
Warming up --------------------------------------
          json 2.7.2   638.000 i/100ms
                  oj   798.000 i/100ms
          Oj::Parser   948.000 i/100ms
           rapidjson   631.000 i/100ms
Calculating -------------------------------------
          json 2.7.2      6.423k (± 1.3%) i/s  (155.70 μs/i) -     32.538k in   5.067149s
                  oj      7.989k (± 1.0%) i/s  (125.17 μs/i) -     40.698k in   5.094544s
          Oj::Parser      9.472k (± 1.3%) i/s  (105.58 μs/i) -     47.400k in   5.005119s
           rapidjson      6.354k (± 1.1%) i/s  (157.37 μs/i) -     32.181k in   5.064962s
Comparison:

json 2.8.0:     9510.0 i/s

Oj::Parser:     9471.9 i/s - same-ish: difference falls within error

oj:     7989.4 i/s - 1.19x  slower

json 2.7.2:     6422.5 i/s - 1.48x  slower

rapidjson:     6354.5 i/s - 1.50x  slower
== Parsing twitter.json (567916 bytes)

ruby 3.4.0dev (2024-11-06T07:59:09Z precompute-hash-wh.. 7943f98a8a) +YJIT +PRISM [arm64-darwin24]

Warming up --------------------------------------

json 2.7.2    52.000 i/100ms

oj    64.000 i/100ms

Oj::Parser    76.000 i/100ms

rapidjson    57.000 i/100ms

Calculating -------------------------------------

json 2.7.2    526.860 (± 3.8%) i/s    (1.90 ms/i) -      2.652k in   5.042680s

oj    631.234 (± 1.7%) i/s    (1.58 ms/i) -      3.200k in   5.070973s

Oj::Parser    764.354 (± 3.5%) i/s    (1.31 ms/i) -      3.876k in   5.077736s

rapidjson    579.085 (± 2.8%) i/s    (1.73 ms/i) -      2.907k in   5.024620s
Comparison:

json 2.8.0:      884.0 i/s

Oj::Parser:      764.4 i/s - 1.16x  slower

oj:      631.2 i/s - 1.40x  slower

rapidjson:      579.1 i/s - 1.53x  slower

json 2.7.2:      526.9 i/s - 1.68x  slower
== Parsing citm_catalog.json (1727030 bytes)

ruby 3.4.0dev (2024-11-06T07:59:09Z precompute-hash-wh.. 7943f98a8a) +YJIT +PRISM [arm64-darwin24]

Warming up --------------------------------------

json 2.7.2    30.000 i/100ms

oj    35.000 i/100ms

Oj::Parser    45.000 i/100ms

rapidjson    40.000 i/100ms

Calculating -------------------------------------

json 2.7.2    304.584 (± 3.3%) i/s    (3.28 ms/i) -      1.530k in   5.029021s

oj    358.572 (± 0.8%) i/s    (2.79 ms/i) -      1.820k in   5.076123s

Oj::Parser    450.643 (± 3.1%) i/s    (2.22 ms/i) -      2.295k in   5.098150s

rapidjson    395.304 (± 1.5%) i/s    (2.53 ms/i) -      2.000k in   5.060537s
Comparison:

json 2.8.0:      449.8 i/s

Oj::Parser:      450.6 i/s - same-ish: difference falls within error

rapidjson:      395.3 i/s - 1.14x  slower

oj:      358.6 i/s - 1.25x  slower

json 2.7.2:      304.6 i/s - 1.48x  slower

Full Changelog: v2.7.3...v2.8.0

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by more commits than we can show here.

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