acts_as_constant 的所有版本
自從 February 26, 2007 以來，有 6 個版本:
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1.0.5
August 30, 2007*
(4.5 KB)
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1.0.4
March 15, 2007*
(4.5 KB)
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1.0.3
March 05, 2007*
(4.0 KB)
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1.0.2
February 28, 2007*
(4.0 KB)
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1.0.1
February 27, 2007*
(4.0 KB)
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1.0.0
February 26, 2007*
(3.5 KB)