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Bitcoin Optech: Newsletter #360 Recap

Bitcoin Optech: Newsletter #360 Recap

Update: 2025-07-01
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Mark “Murch” Erhardt and Mike Schmidt are joined by Daniela Brozzoni and Naiyoma to discuss ⁠Newsletter #360⁠.


News

● Fingerprinting nodes using `addr` messages (1:00 )

● Does any software use `H` in descriptors? (29:36 )


Selected Q&A from Bitcoin Stack Exchange

● Is there any way to block Bitcoin Knots nodes as my peers? (33:42 )

● What does OP_CAT do with integers? (42:00 )

● Async Block Relaying With Compact Block Relay (BIP152) (43:03 )

● Why is attacker revenue in selfish mining disproportional to its hash-power? (52:47 )


Releases and release candidates

● Bitcoin Core 28.2 (57:51 )


Notable code and documentation changes

● Bitcoin Core #31981 (59:21 )

● Eclair #3109 (1:00:48 )

● LND #9950 (1:01:31 )

● LDK #3868 (1:01:56 )

● LDK #3873 (1:03:10 )

● Libsecp256k1 #1678 (1:04:11 )

● BIPs #1803 (1:06:21 )


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Bitcoin Optech: Newsletter #360 Recap

Bitcoin Optech: Newsletter #360 Recap

Bitcoin Optech