Maintenance Ruby 3.3 gets fixes, but no new features. Switch to Ruby 4.0 →
instance method
Logger#unknown
unknown(progname = nil, &block)
lib/logger.rb
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# File tmp/rubies/ruby-3.3.0/lib/logger.rb, line 720
def unknown(progname = nil, &block)
add(UNKNOWN, nil, progname, &block)
end
Equivalent to calling add with severity Logger::UNKNOWN.