Sidekiq v2.12.3 Release Notes
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- ⏪ Revert back to Celluloid's TaskFiber for job processing which has proven to be more stable than TaskThread. [#985]
- Avoid possible lockup during hard shutdown [#997]
At this point, if you are experiencing stability issues with Sidekiq in 👀 Ruby 1.9, please try Ruby 2.0. It seems to be more stable.