Bitcoin Optech: Newsletter #403 Recap

Bitcoin Optech: Newsletter #403 Recap

From Bitcoin Optech Podcast by Bitcoin Optech

May 6, 2026 · 1h 13m

About this episode

The episode discusses the highlights and updates from Bitcoin Optech's Newsletter #403, including post-quantum wallet proposals and recent software releases.

Gustavo Flores Echaiz and Brandon Black are joined by Olaoluwa Osuntokun to discuss Newsletter #403 . News ● Binary fuse filters as an alternative to BIP158's GCS (19:05) Changing consensus ● Post-quantum HD wallets with fallback SPHINCS keys (31:07) ● Discussion of a post-quantum output type (34:42) ● Proposal to embed post-quantum keys in tapscript without consensus changes (38:03) ● BIP54 demonstration of slow blocks on signet (43:28) ● Post-quantum BIP86 recovery using zk-STARK proofs of BIP32 seeds (1:05) Releases and release candidates ● Core Lightning 26.04.1 (48:16) ● BTCPay Server 2.3.8 (50:15) ● BTCPay Server 2.3.9 (51:52) Notable code and documentation changes ● Bitcoin Core #33671 (52:39) ● Bitcoin Core #34885 (58:01) ● Bitcoin Core #33920 (59:57) ● Bitcoin Core #34911 (1:02:00) ● BIPs #1548 (1:04:47) ● HWI #831 (1:08:17) ● BDK #2188 (1:09:11) ● BDK #2115 (1:10:14)

People in this episode

Hosts: Gustavo Flores Echaiz, Brandon Black

Guest: Olaoluwa Osuntokun

Topics covered

  • post-quantum wallets
  • BIP proposals
  • Core Lightning updates
  • BTCPay Server releases
  • Bitcoin Core changes
  • newsletter recap

Keywords

  • Bitcoin
  • Optech
  • post-quantum
  • BIP
  • Core Lightning
  • BTCPay Server
  • software updates
  • newsletter

Mentioned in this episode

Organizations: Bitcoin Optech, Core Lightning, BTCPay Server, Bitcoin Core, HWI, BDK

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