RBS 4.2

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[Kernel] Tweak signatures for conversion methods, and add unit tests in

Status: Open (in progress).

ruby/rbsnumber 2683

#2683 In ruby/rbs;

· sampersand opened on Oct 17, 2025

Split socket/SSLSocket nonblock methods into exception: overloads

Status: Open (in progress).

ruby/rbsnumber 2963

#2963 In ruby/rbs;

· zonuexe opened on May 21, 2026

Split parameter-driven return types into overloads

Status: Open (in progress).

ruby/rbsnumber 2965

#2965 In ruby/rbs;

· zonuexe opened on May 21, 2026

Replace deterministic untyped return types with concrete types

Status: Open (in progress).

ruby/rbsnumber 2966

#2966 In ruby/rbs;

· zonuexe opened on May 21, 2026

Support class << self in inline parser

Status: Open (in progress).

ruby/rbsnumber 2972

#2972 In ruby/rbs;

· ksss opened on May 23, 2026

Update Integer, phase 2

Status: Open (in progress).

ruby/rbsnumber 3001

#3001 In ruby/rbs;

· sampersand opened on Jun 16, 2026