This is a Formal Response to Formal Comment #439:

Bidirectional ports and port-open?

The WG voted to accept this proposal, splitting `port-open?` into
`input-port-open?` and `output-port-open?`.

Thank you for participating in the R7RS process.

--
Let's face it: software is crap. Feature-laden and bloated, written under
tremendous time-pressure, often by incapable coders, using dangerous
languages and inadequate tools, trying to connect to heaps of broken or
obsolete protocols, implemented equally insufficiently, running on
unpredictable hardware -- we are all more than used to brokenness.
                   --Felix Winkelmann

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