Issue #20713 has been updated by Bo98 (Bo Anderson). Ah is the default `json` gem no longer supported too? This broke REXML CI: https://github.com/ruby/rexml/actions/runs/10695343850/job/29648614890 because `rdoc` uses `json` from the standard library. Should `rdoc` depend on the `json` from RubyGems instead? ---------------------------------------- Bug #20713: Ruby 3.3.5 triggers a deprecation warning with `require "json"` https://bugs.ruby-lang.org/issues/20713#change-109613 * Author: Bo98 (Bo Anderson) * Status: Closed * ruby -v: 3.3.5 * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- Can be reproduced with `bundle exec ruby -e "require 'json'"`: ``` /opt/hostedtoolcache/Ruby/3.3.5/x64/lib/ruby/3.3.0/json/common.rb:3: warning: ostruct was loaded from the standard library, but will no longer be part of the default gems starting from Ruby 3.5.0. ``` Likely needs a backport of https://github.com/ruby/ruby/commit/066bd28cff75b752b0af90dce933fa382dee0406. -- https://bugs.ruby-lang.org/