How are dust and fees related?

Question

When sending a transaction now, I get the prompt: The transaction fee is 0.010000000000, of which 0.006000000000 is dust from change. Is this okay? (Y/Yes/N/No). What does that mean, is it that the fees would have been only 0.004 (or 0.006) but the client wants to round that up to 0.01?

Answer 1

This is a minor bug due to the dust threshold (0.01 XMR) being higher than the current fee (0.002 XMR per kB). This is fixed in this pull request.

What does that mean, is it that the fees would have been only 0.004 (or 0.006) but the client wants to round that up to 0.01?

Basically yes.