1
 20.0.4 / 2012-06-17 
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 4
 5  * changed: ret -1 for unsatisfiable and -2 when invalid
 6
 70.0.3 / 2012-06-17 
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 9
10  * fix last-byte-pos default to len - 1
11
120.0.2 / 2012-06-14 
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14
15  * add `.type`