Quote from: deepceleron on September 10, 2014, 11:46:03 AM

The requirement for all outputs to be 0.01 or greater was dropped. Instead the dust prevention method is now a minimum of 546 satoshi (~1/3 of fee)
https://github.com/bitcoin/bitcoin/blob/master/src/core.h line 195

Thanks.

Quote from: deepceleron on September 10, 2014, 11:46:03 AM

Free transactions have a minimum priority that dictates relatively large BTC amounts or well-aged coins. People can't continuously spam with this rule because they will quickly run out of funds that can be sent for free.

I know this is true for mining, i.e. CreateNewBlock, but my question is specifically about relaying/admitting to mempool. From what I can see, no matter how high the tx priority is, if there is zero fee then it's subject to rate-limiting. This suggests that even high priority transactions may not get relayed properly if they don't include a fee. Just want to make sure that I'm interpreting it correctly.