Subj : Ruby's Bundler adds a cooldown feature To : All From : LWN.net Date : Fri Jun 05 2026 14:00:08 Ruby's Bundler adds a cooldown feature Date: Fri, 05 Jun 2026 12:57:00 +0000 Description: Version 4.0.13 of Ruby's Bundler package-manager has added dependency cooldowns in order to help mitigate the effect of supply-chain attacks: Most supply-chain attacks against RubyGems exploit a narrow window: an account is compromised, a malicious version ships, and any bundleinstall in the minutes that follow resolves straight to it. Bundler 4.0.13 introduces cooldown, a time-based filter that refuses to resolve to a version until it has been public for at least N days. Releases too new to have been scrutinized are passed over in favor of ones that have aged past the window. The feature was designed in the open , drawing on how other ecosystems approach the same problem . It is opt-in, and complements rather than replaces existing defenses like mandatory 2FA and trusted publishing. LWN covered dependency cooldowns in April, and the takeover of RubyGems and Bundler in October 2025. ====================================================================== Link to news story: https://lwn.net/Articles/1076526/ --- Mystic BBS v1.12 A49 (Linux/64) * Origin: tqwNet UK HUB @ hub.uk.erb.pw (1337:1/100) .