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keysend: increase assumed final_cltv_expiry to 42 (to match LDK).#9046

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sangbida merged 1 commit intoElementsProject:masterfrom
rustyrussell:fix-ldk-keysend
Apr 10, 2026
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keysend: increase assumed final_cltv_expiry to 42 (to match LDK).#9046
sangbida merged 1 commit intoElementsProject:masterfrom
rustyrussell:fix-ldk-keysend

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Reported-by: https://github.com/tnull
Fixes: #9034

Reported-by: https://github.com/tnull
Fixes: ElementsProject#9034
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: JSON-RPC: `keysend` now assumes 42, not 22 for final CLTV (should fix sending to LDK nodes)
@rustyrussell rustyrussell added this to the v26.04 milestone Apr 10, 2026
@sangbida sangbida merged commit b57edd2 into ElementsProject:master Apr 10, 2026
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CLN-to-LDK keysend is broken due to incompatible min_final_cltv_expiry

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