Bitcoin Optech newsletter #398 is here:

• summarizes popular Q&A from Stack Exchange
• Bitcoin Core 28.4, Core Lightning 26.04rc1
• Optech Newsletter #398 Podcast
  https://bitcoinops.org/en/newsletters/2026/03/27/

Selected Q&A from Bitcoin Stack Exchange

• What is meant by “Bitcoin doesn’t use encryption”?
• When and why did Bitcoin Script shift to a commit–reveal structure?
• Does P2TR-MS (Taproot M-of-N multisig) leak public keys?
• Does OP_CHECKSIGFROMSTACK intentionally allow cross-UTXO signature reuse?
  https://bitcoinops.org/en/newsletters/2026/03/27/#selected-qa-from-bitcoin-stack-exchange

Bitcoin Optech will host an audio recap discussion of this newsletter streaming live on X/Twitter Tuesday at 16:30 UTC.