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BOLT 9: Add ASSUMED marker we can use on features.

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Rusty Russell 2024-03-14 21:19:03 +10:30 • committed by neil saitug
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09-features.md
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@ -6,6 +6,8 @@ the `channel_announcement` and `node_announcement` messages ([BOLT
#7](07-routing-gossip.md)). The flags are tracked separately, since
new flags will likely be added over time.
Some features were introduced and became so widespread they are `ASSUMED` to be present by all nodes, and can be safely ignored (and the semantics are only defined in prior revisions of this spec).
Flags are numbered from the least-significant bit, at bit 0 (i.e. 0x1,
an _even_ bit). They are generally assigned in pairs so that features
can be introduced as optional (_odd_ bits) and later upgraded to be compulsory