Posted by nagachika on 15 Mar 2019

Ruby 2.5.5 has been released.

This release includes a bug fix for a deadlock in multi-thread/multi-process applications (that use Process.fork from multi-threaded parent processes), like for example Puma.

See the commit logs for changes in detail.

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https://cache.ruby-lang.org/pub/ruby/2.5/ruby-2.5.5.tar.bz2 SIZE: 14165422 bytes SHA1: 1932db85ace80ecdbc5cfc7aada5b5123f7ad739 SHA256: 1f2567a55dad6e50911ce42fcc705cf686924b897f597cabf803d88192024dcb SHA512: 1b56aa79569b818446440b9f2d13122bf7c2976ab9b2865f5fb62d247d7768dd4ac5b5e463709ffec0f757bff7088afd293c2a8c5349c3780763b6444bb354a8

https://cache.ruby-lang.org/pub/ruby/2.5/ruby-2.5.5.tar.gz SIZE: 15996436 bytes SHA1: e6a063728950762925108abbdbf68968ec1ab5bb SHA256: 28a945fdf340e6ba04fc890b98648342e3cccfd6d223a48f3810572f11b2514c SHA512: 82d0ae019c02822668f7e8c7ad7f62170b059ea70a95a7a7cb26f809e2f2f0f5d25b5bb0ca147413ae42cf0fc5bf60329b56609c266556b1e9f04813c33bb4c9

https://cache.ruby-lang.org/pub/ruby/2.5/ruby-2.5.5.tar.xz SIZE: 11459832 bytes SHA1: 85cee62e47f0707808ff3d7cb68b6cd075a65509 SHA256: 9bf6370aaa82c284f193264cc7ca56f202171c32367deceb3599a4f354175d7d SHA512: 06b1d58536ebfacb7b56c1e6ed4b8ab816fadc4f48c845a452554cd262e7908199a30e5793f3cbaec2db56a8803aa5c6089abf7bf06c8fc47867e97870b7dfec

https://cache.ruby-lang.org/pub/ruby/2.5/ruby-2.5.5.zip SIZE: 19186230 bytes SHA1: c0b2bd2b09b40d098b1295303c820d7dd8d97d38 SHA256: be630e814c796f3750bd892f1250851e67fc4379f75508a4cb7ca7ceb718ddef SHA512: 95604d47f3436e0be3a59742a89ac5f1c5c9493ddab8b53b154098b876b2fa12418d2adfc1c71e039a6876d209a7832efd88c0e297df5be56b8f7e92094eb487

Release Comment

I wish to express my gratitude to sorah and k0kubun for their report and investigation. Thank you.