What's new in this release?

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Below is a list of all relevant changes since release 1.6. Older

changes are in the file HISTORY. The most recent changes are listed

first.

A note on attributions: while I have sprinkled some names throughout

here, I'm grateful to many more people who remain unnamed. You may

find your name in the ACKS file. If you believe you deserve more

credit, let me know and I'll add you to the list!

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<To be done>

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