Ruby Issue Tracking System

11/23/2025

07:53 PM Ruby Feature #21706 (Open): Add SIMD optimizations for string comparison operations

# Feature: SIMD-accelerated String Comparison (SSE2/NEON)
**PR:** https://github.com/ruby/ruby/pull/15307
## Summary
SIMD optimizations for string comparison using SSE2 (x86_64) and NEON (ARM64). **17.2% average speedup** for st... sebyx07 (Sebastian Buza)

08/28/2024

12:24 PM Ruby Feature #20703: Alias StringIO#string to StringIO#to_s/to_str

@Dan0042 done, ty! sebyx07 (Sebastian Buza)

08/27/2024

10:46 PM Ruby Feature #20703 (Rejected): Alias StringIO#string to StringIO#to_s/to_str

# Description
Allow to use `StringIO.new('my string').to_s` to be the same as `StringIO.new('my string').string`
IMO nobody really uses the current StringIO#to_s, so I don't think it will break other apps.
* Also added .to_str
Th... sebyx07 (Sebastian Buza)

06:50 PM Ruby Feature #20692: Rewrite Array#bsearch in Ruby

ty Hanmac sebyx07 (Sebastian Buza)

08/22/2024

09:04 PM Ruby Feature #20692 (Open): Rewrite Array#bsearch in Ruby

inspired by https://bugs.ruby-lang.org/issues/20182
# Proporsal
Rewrite Array#bsearch
```ruby
class Array
def bsearch
return to_enum(:bsearch) { size } unless block_given?
return nil if empty?
low = 0
... sebyx07 (Sebastian Buza)

12/30/2020

07:42 AM Ruby Feature #17316: On memoization

IMO there should be an operator in the language directly to keep it more dry.
```ruby
def my_method # current implementation
return @cache if defined? @cache
@cache = some_heavy_calculation
end
def my_new_method
@cac... sebyx07 (Sebastian Buza)