Mark “Murch” Erhardt and Mike Schmidt are joined by René Pickhardt to discuss ⁠Newsletter #309⁠. News Estimating the likelihood that an LN payment is feasible (1:04) Selected Q&A from Bitcoin Stack Exchange How is the progress of Initial Block Download (IBD) calculated? (31:25) What is `progress increase per hour` during synchronization? (33:50) Should an even Y coordinate be enforced after every key-tweak operation, or only at the end? (34:45) Signet mobile phone wallets? (37:28) What block had the most transaction fees? Why? (39:01) bitcoin-cli listtransactions fee amount is way off, why? (41:48) Did uncompressed public keys use the `04` prefix before compressed public keys were used? (44:57) What happens if an HTLC's value is below the dust limit? (46:34) How does subtractfeefrom work? (47:11) What's the difference between the 3 index directories blocks/index/, bitcoin/indexes and chainstate? (51:19) Releases and release candidates LND v0.18.1-beta (52:18) Bitcoin Core 26.2rc1 (53:02) Notable code and documentation changes Bitcoin Core #29575 (53:29) Bitcoin Core #28984 (56:38) Core Lightning #7388 (1:00:28) LND #8734 (1:03:24) LDK #3127 (1:03:59) Rust Bitcoin #2794 (1:05:39) BDK #1395 (1:07:05) BIPs #1620 (1:08:55) BOLTs #869 (1:11:57)