https://bitcoinops.org/en/topics/replace-by-fee/

And Czech translation: https://bitcoinops.org/cs/newsletters/2025/02/28/

also check this new proposal https://bitcoinops.org/en/topics/utreexo/

https://bitcoinops.org/en/topics/cross-input-signature-aggregation/

If you're looking for more protocol oriented stuff: https://bitcoinops.org/

This might help https://bitcoinops.org/en/tools/calc-size/

read more here https://bitcoinops.org/en/topics/ptlc/

Czech translation: https://bitcoinops.org/cs/newsletters/2025/03/21/

And Czech translation: https://bitcoinops.org/cs/newsletters/2024/10/18/

Czech translation is available now: https://bitcoinops.org/cs/newsletters/2025/03/14/

Also subscribe for OpTech https://bitcoinops.org/en/newsletters/ And look at open source projects and

This one too: Replace-by-Fee (RBF) - Compatibility Matrix https://bitcoinops.org/en/compatibility/#replace-by-fee-rbf

It reminds me of joinpools: https://bitcoinops.org/en/topics/joinpools/

You can also read full post here https://bitcoinops.org/en/newsletters/2024/01/24/

Yeah its called "Bitcoin OpTech" newsletters: https://bitcoinops.org/ Lurking on SN helps too though

Bitcoin Optech for the most recent technical developments in Bitcoin https://bitcoinops.org/en/podcast

With transcript: Bitcoin Optech Newsletter #240 Recap Podcast https://bitcoinops.org/en/podcast/2023

https://bitcoinops.org/en/topics/covenants/ seems a good starting point.

I like also https://bitcoinops.org/ is like a resume of Delving :)

https://bitcoinops.org/en/topics/vaults/ https://covenants.info/use-cases/vaults/

: https://bitcoinops.org/en/topics/quantum-resistance