Release v2.3.1 · ruby/json

What's Changed

keyword argument is provided after Ruby 2.0+ by @hsbt in #396
Remove invalid JSON.generate description from JSON module rdoc by @jeremyevans in #384
Update gemspec by @hsbt in #398
Add :nodoc: for GeneratorMethods by @zverok in #349
add metadata for rubygems.org by @noraj in #379
Enhance generic JSON and #generate docs by @zverok in #347
Test with TruffleRuby in CI by @eregon in #402
Spelling and grammar fixes for comments. by @jkanywhere in #191
baseline changes to help (JRuby) development by @kares in #371
fixtures/ are not being tested... by @marcandre in #416
Cleanup gemspec by @marcandre in #415
Sync ruby by @nobu in #418
Use frozen string for hash key by @marcandre in #420
Rdoc enhancements by @BurdetteLamar in #413
Added :call-seq: to RDoc for some methods by @BurdetteLamar in #422
Small typo fix by @marcandre in #423
Update Changes for 2.3.0 [Fixes #397] by @marcandre in #424
Make changes more precise [#424] by @marcandre in #428
Trivial whitespace fix by @marcandre in #426
Remove generate task for gemspec by @hsbt in #429
Add load_file and load_file! methods, with tests. Fixes issue #386. by @keithrbennett in #387

Full Changelog: v2.3.0...v2.3.1