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Bitcoin Optech newsletter #357 is here:

- shares an analysis about syncing full nodes without old witnesses

- Changing consensus covering: a quantum computing report, transaction weight limits, removing outputs from the UTXO set based on value and time

- Optech Newsletter #357 Recap

https://bitcoinops.org/en/newsletters/2025/06/06/

Jose SK posted to Delving Bitcoin a summary of an analysis he performed about the security tradeoffs of allowing newly started full nodes with a particular configuration to avoid downloading some historic blockchain data...

https://bitcoinops.org/en/newsletters/2025/06/06/#syncing-full-nodes-without-witnesses

Clara Shikhelman posted to Delving Bitcoin the summary of a report she co-authored with Anthony Milton about the risks to Bitcoin users of fast quantum computers, an overview of several pathways to quantum resistance, and an analysis of tradeoffs involved in upgrading the Bitcoin protocol...

https://bitcoinops.org/en/newsletters/2025/06/06/#quantum-computing-report

Vojtěch Strnad posted to Delving Bitcoin to propose the idea for a consensus change to limit the maximum weight of most transactions in a block...

https://bitcoinops.org/en/newsletters/2025/06/06/#transaction-weight-limit-with-exception-to-prevent-confiscation

Robin Linus posted to Delving Bitcoin to propose a soft fork for removing low-value outputs from the UTXO set after some time...

https://bitcoinops.org/en/newsletters/2025/06/06/#removing-outputs-from-the-utxo-set-based-on-value-and-time

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

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https://bitcoinops.org/en/newsletters/2025/06/06/#quantum-computing-report

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https://riverside.fm/studio/bitcoin-optech

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https://bitcoinops.org/en/newsletters/2025/06/06/

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https://bitcoinops.org/en/newsletters/2025/06/06/#transaction-weight-limit-with-exception-to-prevent-confiscation

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https://bitcoinops.org/en/newsletters/2025/06/06/#removing-outputs-from-the-utxo-set-based-on-value-and-time

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