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+P2P and network changes
+-----------------------
+
+- Transactions participating in one-parent-one-child package relay can now have the parent
+    with a feerate lower than the `-minrelaytxfee` feerate, even 0 fee. This expands the change
+    from 28.0 to also cover packages of non-TRUC transactions. Note that in general the
+    package child can have additional unconfirmed parents, but they must already be
+    in-mempool for the new package to be relayed. (#33892)