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.

The Bitcoin Optech Podcast and transcription content is licensed Creative Commons CC BY-SA 2.0

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 (28:07)

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)

Transcription

transcription coming soon