v3.1.0

What's Changed

• CI: Add "3.0" to matrix, and bump gem version to "3.0.1.pre" to differentiate from built-in by @olleolleolle in #17
• gemspec: Avoid distributing extraneous files by @olleolleolle in #16
• gemspec: Explicitly have 0 executables by @olleolleolle in #18
• Silence GCC 11 warnings by @xtkoba in #19
• Use test-unit gem instead of ruby core test suite by @hsbt in #15
• Move digest.rb back under ext as the extension bundled library by @nobu in #23
• Integrate the JRuby extension by @knu in #25
• CI: Use bundler-cache: true by @olleolleolle in #26
• include jars by @ahorek in #27
• Avoid null pointer subtraction in digest/md5 by @jeremyevans in #29
• Expose Digest::VERSION by @casperisfine in #30
• s/RubyVM::JIT/RubyVM::MJIT/g by @k0kubun in #32
• depend file is needless for gem by @hsbt in #33

New Contributors

• @xtkoba made their first contribution in #19
• @knu made their first contribution in #25
• @ahorek made their first contribution in #27
• @jeremyevans made their first contribution in #29
• @casperisfine made their first contribution in #30
• @k0kubun made their first contribution in #32

Full Changelog: v3.0.0...v3.1.0