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Repartitioning of the Language

The HPF Forum had two important goals that were sometimes in conflict:

One compromise made to satisfy both goals was to divide the language definition into two parts. HPF 2.0 is very similar to HPF 1.1, and is expected to be efficiently implemented by a number of vendors within approximately one year from the appearance of this document. Advanced features that require more implementation effort are collected as Approved Extensions. Implementors are encouraged to support these features as rapidly as possible, and users are encouraged to speed this process by making their wishes known to the vendors.