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We replace our experimental version of `splice_init`, `splice_ack` and `splice_locked` by their official version. We also change the TLV fields added to `commit_sig`, `tx_add_input`, and `tx_signatures` to match the spec version. We only allow connecting to peers who support the official splicing feature.
With splicing, we introduce new TLVs to `channel_reestablish` to let our peer know: - the latest `splice_locked` (or `channel_ready`) we're ready to send or have sent before disconnecting - whether we need a retransmission of `commit_sig` for the next funding - whether we need a retransmission of `announcement_signatures` for the next funding (always false for mobile wallets) This lets us clean-up retransmission of those messages and follow the official splicing spec.
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We replace our experimental version of
splice_init,splice_ackandsplice_lockedby their official version. We also change the TLV fields added tocommit_sig,tx_add_input, andtx_signaturesto match the spec version and introduce thestart_batchmessage.We also implement the updated retransmission logic for
channel_readyandsplice_lockedbased on themy_current_funding_lockedandnext_fundingTLVs added tochannel_reestablish.We only allow connecting to peers who support the official splicing feature.
This update should be released after deploying ACINQ/eclair#2887. Once enough users have upgraded, we'll be able to remove support from the legacy splicing protocol from
eclair, which will provide a nice code clean-up.