v5.2.0

What's Changed

• Remove unused array by @amomchilov in #665
• issue #443: quote Y and N when dumping by @ColinDKelley in #641
• Provide a 'Changelog' link on rubygems.org/gems/psych by @mark-young-atg in #666
• Add :stringify_names option to convert symbol keys to string for dumping by @fnordfish in #621
• Don't call Kernel#require in hot loop by @casperisfine in #678
• Convert tabs to spaces in C files by @peterzhu2118 in #680
• Add .git-blame-ignore-revs to ignore expanding tabs by @peterzhu2118 in #681
• Exclude Ruby 2.5 on macOS from CI by @peterzhu2118 in #682
• Convert missed tabs to spaces by @peterzhu2118 in #683
• Guard from memory leak in Psych::Emitter#start_document by @peterzhu2118 in #684
• CI: Ruby 2.5 runs on macos-13 (amd64) by @olleolleolle in #677
• docs: specify correct default fallback value by @G-Rath in #668
• Make to load stringio lazily by @hsbt in #686
• Unlimited line_width with -1 by @xuanxu in #675
• Ensure strings with only underscores are not processed as Integer by @zendesk-jmeade in #687
• Use String#match? over String#=~ when applicable by @casperisfine in #688

New Contributors

• @ColinDKelley made their first contribution in #641
• @mark-young-atg made their first contribution in #666
• @fnordfish made their first contribution in #621
• @peterzhu2118 made their first contribution in #680
• @G-Rath made their first contribution in #668
• @xuanxu made their first contribution in #675
• @zendesk-jmeade made their first contribution in #687

Full Changelog: v5.1.2...v5.2.0