BIP draft: Dust UTXO Disposal Protocol #2150

 167 | +
 168 | +Bitcoin relay policy enforces a minimum transaction base size of 65 bytes to prevent certain attack vectors. Compliant transactions must meet this threshold to be relayed by standard nodes.
 169 | +
 170 | +### Why 0.1 sat/vB Minimum Fee Rate?
 171 | +
 172 | +Dust disposal transactions must meet the minimum relay fee rate, which is currently 0.1 sat/vB (Bitcoin Core 28.3, 29.1, 30.0+). This allows dust UTXOs to be disposed of economically even when their value is small. Implementations targeting older node versions may need higher minimum fee rates.

jonatack commented at 7:59 PM on April 24, 2026:

Maybe address theoretical updating if the minimum relay fee rate changes in the future.

bubb1es71 commented at 2:24 AM on April 25, 2026:

Would adding a sentence like this work?

"Dust disposal transactions should always pay at least the current standard minimum relay fee rate if it changes in the future."