Bitcoin Optech: Newsletter #385: 2025 Year-in-Review Special Recap
Description
Mark “Murch” Erhardt and Mike Schmidt are joined by Bastien Teinturier, Rearden Code, and Pieter Wuille to discuss Newsletter #385: 2025 Year-in-Review Special.
January
● Updated ChillDKG draft (43:08 )
● Offchain DLCs (45:53 )
● Compact block reconstructions (2:29:27 )
February
● Erlay update (1:53:55 )
● LN ephemeral anchor scripts (0:50 )
● Probabilistic payments (54:45 )
March
● Bitcoin Forking Guide (3:29:35 )
● Private block template marketplace to prevent centralizing MEV (3:05:28 )
● LN upfront and hold fees using burnable outputs (13:12 )
April
● SwiftSync speedup for initial block download (2:09:35 )
● DahLIAS interactive aggregate signatures (3:26:02 )
Summary 2025: Quantum (58:07 )
May
● Cluster mempool (1:22:11 )
● Increasing or removing Bitcoin Core’s OP_RETURN policy limit (2:45:43 )
June
● Calculating the selfish mining danger threshold (2:20:39 )
● Fingerprinting nodes using addr messages (3:11:38 )
● Garbled locks (3:19:01 )
Summary 2025: Soft fork proposals (26:57 )
July
● Chain code delegation (49:07 )
August
● Utreexo draft BIPs (2:15:57 )
● Lowering the minimum relay feerate (2:39:52 )
● Peer block template sharing (2:56:01 )
● Differential fuzzing of Bitcoin and LN implementations (3:16:08 )
Summary 2025: Stratum v2 (2:04:49 )
September
● Details about the design of Simplicity (3:23:01 )
● Partitioning and eclipse attacks using BGP interception (3:13:47 )
October
● Discussions about arbitrary data (3:01:15 )
● Channel jamming mitigation simulation results and updates (11:05 )
November
● Comparing performance of ECDSA signature validation in OpenSSL vs. libsecp256k1 (2:01:47 )
● Modeling stale rates by propagation delay and mining centralization (2:22:32 )
● BIP3 and the BIP process (3:31:37 )
● Bitcoin Kernel C API introduced (3:35:35 )
December
● Splicing (7:33 )




