Bitcoin Optech newsletter #370 is here:

Russell O’Connor made three posts so far to Delving Bitcoin about “the philosophy and design of the Simplicity language”... https://bitcoinops.org/en/newsletters/2025/09/05/#details-about-the-design-of-simplicity

Olaoluwa Osuntokun posted to the Bitcoin-Dev mailing list a link to a draft BIP for adding several opcodes to tapscript that will allow elliptic curve operations to be performed on the script evaluation stack... https://bitcoinops.org/en/newsletters/2025/09/05/#draft-bip-for-adding-elliptic-curve-operations-to-tapscript

Jeremy Rubin posted to the Bitcoin-Dev mailing list a link a draft BIP to add OP_TWEAKADD to tapscript... https://bitcoinops.org/en/newsletters/2025/09/05/#draft-bip-for-op-tweakadd

Bitcoin Optech will host an audio recap discussion of this newsletter on Riverside.fm Tuesday at 16:30 UTC. Join us to discuss or ask questions! https://riverside.fm/studio/bitcoin-optech