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| Version | Date Released | Status | Release Notes |
| 2.9.1 RC 1 | Jul 27, 2011 | New Release | Parallel Collections: · Every collection may be converted into a corresponding parallel collection with the new `par` method. Parallel collections utilize multicore processors by implementing bulk operations such as `foreach`, `map`, `filter` etc. in parallel. Parallel collections are located in the package `scala.collection.parallel`. · Depending on the collection in question, `par` may require copying the underlying dataset to create a parallel collection. However, specific collections share their underlying dataset with a parallel collection, making `par` a constant time operation. · Currently available parallel collections are - · parallel arrays - scala.collection.parallel.mutable.ParArray · parallel ranges - scala.collection.parallel.immutable.ParRange · parallel hash maps - scala.collection.parallel.mutable.ParHashMap · parallel hash sets - scala.collection.parallel.mutable.ParHashSet · parallel hash tries - scala.collection.parallel.immutable.{ParHashMap, ParHashSet} |
| 2.8.1 Final | Nov 10, 2010 | New Release |