Ruby Weekly issue 797 covers JRuby 10.1 releasing with Ruby 4.0 compatibility and a new biennial LTS cycle, mruby 4.0 adding pattern matching and memory improvements, and Ruby Central facing financial difficulties with leadership changes. Technical highlights include optimizations to Ruby path methods like File.join outperforming string interpolation, a push for MFA on all RubyGems, and PII filtering for RubyLLM. The release roundup includes oj 3.17 with a safe parser mode, Faker 3.8 with lazy loading, RSpec Tracer 1.1, and several other gem updates. Ecosystem news covers Git 2.54, a Cloudflare CLI preview, PostgreSQL 19 draft release notes, and a teaser from RubyKaigi about Ruby being faster than C.
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