Bitcoin Optech: Newsletter #231: 2022 Year-in-Review Special Recap
Bitcoin Optech Podcast · 
Mark “Murch” Erhardt and Mike Schmidt are joined by Dave Harding to discuss Newsletter #231 (https://bitcoinops.org/en/newsletters/2022/12/21/).
January
• Stateless invoices (7:37)
• Legal defense fund (11:21)
February
• Fee sponsorship (12:45)
• Phantom node payments (15:14)
March
• LN pathfinding (17:37)
• Zero-conf channels (21:12)
Summary 2022: Replace-By-Fee (24:02)
April
• Silent payments (31:17)
• Taro (35:06)
• Quantum-safe key exchange (45:29)
May
• MuSig2 (48:51)
• Package relay (52:12)
• Bitcoin kernel library (54:49)
June
• LN protocol developers meeting (57:46)
July
• Onion message rate limiting (1:03:58)
• Miniscript descriptors (1:06:34)
August
• LN interactive and dual funding (1:12:59)
• Channel jamming attack mitigation (1:15:18)
• BLS signatures for DLCs (1:18:18)
Summary 2022: Bitcoin Optech (1:23:11)
September
• Fee ratecards (1:26:07)
October
• Version 3 transaction relay (1:29:09)
• Async payments (1:33:25)
• Block parsing bugs (1:36:41)
• ZK rollups (1:37:07)
• Encrypted version 2 transport protocol (1:39:41)
• Meeting of Bitcoin protocol developers (1:41:26)
Summary 2022: Soft fork proposals (1:43:40)
November
• Fat error messages (1:51:24)
December
• Modifying the LN protocol (1:55:57)