Issue #20713 has been updated by Earlopain (A S). The `rdoc` warning is from `irb` itself: https://github.com/ruby/irb/pull/999 ---------------------------------------- Bug #20713: Ruby 3.3.5 triggers a deprecation warning with `require "json"` https://bugs.ruby-lang.org/issues/20713#change-109646 * Author: Bo98 (Bo Anderson) * Status: Closed * ruby -v: 3.3.5 * Backport: 3.1: DONTNEED, 3.2: DONTNEED, 3.3: REQUIRED ---------------------------------------- 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/