Puma 2.10.1 发布了，改进记录包括：
=== 2.10.1 / 2014-11-14
* 1 bug fix:
* Load the app after daemonizing because the app might start threads.
This change means errors loading the app are now reported only in the redirected
stdout/stderr.
If you're app has problems starting up, start it without daemon mode initially
to test.
=== 2.10.0 / 2014-11-23
* 3 minor features:
* Added on_worker_shutdown hook mechanism
* Allow binding to ipv6 addresses for ssl URIs
* Warn about any threads started during app preload
* 5 bug fixes:
* Clean out a threads local data before doing work
* Disable SSLv3. Fixes #591
* First change the directory to use the correct Gemfile.
* Only use config.ru binds if specified. Fixes #606
* Strongish cipher suite with FS support for some browsers
* 2 doc changes:
* Change umask examples to more permissive values
* fix typo in README.md 与其他Ruby web服务器不同的是，Puma是为速度与并发而生的。Puma是一个为Ruby web程序提供高速处理以及HTTP 1.1并发的服务器小型库。它被设计只用来运行Rack程序 速度对比： 
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