Bitcoin Optech newsletter #193 is here:

- describes a proposal for Bitcoin Core to allow replacing transaction witnesses in its mempool
- summarizes continued discussion about updating the LN gossip protocol
- summarizes Stack Exchange Q&A

bitcoinops.org/en/newsletters…
Larry Ruane (@LarryRuane) asked the Bitcoin-Dev mailing list for information and opinions about allowing a transaction to be replaced by the same transaction with the same txid but a smaller witness (and, thus, a different wtxid)...

bitcoinops.org/en/newsletters…
LN protocol developers are discussing how to revise the LN gossip protocol used to advertise information about available payment channels. In particular, this week saw two active threads...

bitcoinops.org/en/newsletters…
Selected Q&A from Bitcoin Stack Exchange:

- What are advantages/disadvantages to address reuse?
- What is a block-relay-only connection used for?
- Is timestamping used outside of difficulty adjustment?
- How are spends from a timelocked UTXO rejected?

bitcoinops.org/en/newsletters…
Bitcoin Core 23.0 RC2 is a release candidate for the next major version of this predominant full node software. Users are encouraged to test before the final release:

github.com/bitcoin-core/b…

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