Bitcoin Optech Newsletter #399 Recap Podcast

By Bitcoin Optech April 7, 2026 · Edited April 7, 2026

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Armin Sabouri, Pyth, Conduition, and Jonas Nick to discuss Newsletter #399.

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by Armin Sabouri, Pyth, Conduition, and Jonas Nick to discuss Newsletter #399 (https://bitcoinops.org/en/newsletters/2026/04/03/).

The Bitcoin Optech Podcast and transcription content is licensed Creative Commons CC BY-SA 2.0 (https://creativecommons.org/licenses/by-sa/2.0/legalcode)

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News

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      ● (https://bitcoinops.org/en/podcast/2026/04/07/#wallet-fingerprinting-risks-for-payjoin-privacy)
      Wallet fingerprinting risks for payjoin privacy
      (44:15 (javascript:void(0))44:15)



    

  

  
  
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      ● (https://bitcoinops.org/en/podcast/2026/04/07/#draft-bip-for-a-wallet-backup-metadata-format)
      Draft BIP for a wallet backup metadata format
      (1:04:26 (javascript:void(0))1:04:26)

Changing consensus

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      ● (https://bitcoinops.org/en/podcast/2026/04/07/#compact-isogeny-pqc-can-replace-hd-wallets-key-tweaking-silent-payments)
      Compact Isogeny PQC can replace HD wallets, key-tweaking, silent payments
      (24:23 (javascript:void(0))24:23)



    

  

  
  
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      ● (https://bitcoinops.org/en/podcast/2026/04/07/#varops-budget-and-tapscript-leaf-0xc2-aka-script-restoration-are-bips-440-and-441)
      Varops budget and tapscript leaf 0xc2 (aka Script Restoration) are BIPs 440 and 441
      (1:13:24 (javascript:void(0))1:13:24)



    

  

  
  
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      ● (https://bitcoinops.org/en/podcast/2026/04/07/#shrimps-2-5-kb-post-quantum-signatures-across-multiple-stateful-devices)
      SHRIMPS: 2.5 KB post-quantum signatures across multiple stateful devices
      (02:02 (javascript:void(0))02:02)

Releases and release candidates

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      ● (https://bitcoinops.org/en/podcast/2026/04/07/#bitcoin-core-31-0rc2)
      Bitcoin Core 31.0rc2
      (1:22:07 (javascript:void(0))1:22:07)



    

  

  
  
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      ● (https://bitcoinops.org/en/podcast/2026/04/07/#core-lightning-26-04rc2)
      Core Lightning 26.04rc2
      (1:23:32 (javascript:void(0))1:23:32)



    

  

  
  
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      ● (https://bitcoinops.org/en/podcast/2026/04/07/#btcpay-server-2-3-7)
      BTCPay Server 2.3.7
      (1:24:04 (javascript:void(0))1:24:04)

Notable code and documentation changes

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      ● (https://bitcoinops.org/en/podcast/2026/04/07/#bitcoin-core-32297)
      Bitcoin Core #32297
      (1:26:29 (javascript:void(0))1:26:29)



    

  

  
  
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      ● (https://bitcoinops.org/en/podcast/2026/04/07/#bitcoin-core-34379)
      Bitcoin Core #34379
      (1:28:54 (javascript:void(0))1:28:54)



    

  

  
  
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      ● (https://bitcoinops.org/en/podcast/2026/04/07/#eclair-3269)
      Eclair #3269
      (1:30:37 (javascript:void(0))1:30:37)



    

  

  
  
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      ● (https://bitcoinops.org/en/podcast/2026/04/07/#ldk-4486)
      LDK #4486
      (1:32:59 (javascript:void(0))1:32:59)



    

  

  
  
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      ● (https://bitcoinops.org/en/podcast/2026/04/07/#ldk-4428)
      LDK #4428
      (1:35:00 (javascript:void(0))1:35:00)



    

  

  
  
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      ● (https://bitcoinops.org/en/podcast/2026/04/07/#lnd-9982)
      LND #9982
      (1:37:13 (javascript:void(0))1:37:13)



    

  

  
  
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      ● (https://bitcoinops.org/en/podcast/2026/04/07/#lnd-10063)
      LND #10063
      (1:39:00 (javascript:void(0))1:39:00)