Update Sinatra to 4.2 and Rack to 3.2#4707

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jochenehret merged 9 commits intomainfrom

Dec 19, 2025

Commits on Dec 15, 2025

Rack 3 update: Replace :unprocessable_entity with :unprocessable_content
jochenehret
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Rack::Test update: Rename response header -> headers
jochenehret
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Rack 3 / Sinatra 4 upgrade: Rewind body before reading
jochenehret
committed

Commits on Dec 16, 2025

Sinatra 4 expects a real IO-like object
jochenehret
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