Ruby's Bundler 4.0.18 Extends Cooldown to bundle lock and bundle cache

Bundler 4.0.18 adds the opt-in –cooldown flag to bundle lock and bundle cache , closing gaps where the setting could not be applied. Bundler 4.0.18, released August 5, 2026 alongside RubyGems 4.0.18, extends the cooldown feature to two more commands. The opt-in –cooldown flag now works with bundle lock and bundle cache , which previously resolved dependencies without accepting the flag.