policy: Remove individual transaction <minrelay restriction #33892

1. 
   instagibbs commented at 8:24 pm on November 17, 2025: member

   Prior to cluster mempool, a policy was in place that disallowed non-TRUC transactions from being TX_RECONSIDERABLE in a package setting if it was below minrelay. This was meant to simplify reasoning about mempool trimming requirements with non-trivial transaction topologies in the mempool. This is no longer a concern post-cluster mempool, so this is relaxed.

   In effect, this makes 0-value parent transactions relayable through the network without the TRUC restrictions and thus the anti-pinning protections.

2. DrahtBot added the label TX fees and policy on Nov 17, 2025
3. 
   DrahtBot commented at 8:24 pm on November 17, 2025: contributor

   The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

   Code Coverage & Benchmarks

   For details see: https://corecheck.dev/bitcoin/bitcoin/pulls/33892.

   Reviews

   See the guideline for information on the review process. A summary of reviews will appear here.

   Conflicts

   No conflicts as of last run.

4. DrahtBot added the label Needs rebase on Nov 25, 2025
5. instagibbs force-pushed on Nov 25, 2025
6. instagibbs marked this as ready for review on Nov 25, 2025
7. DrahtBot removed the label Needs rebase on Nov 25, 2025
8. policy: Allow any transaction version with < minrelay

   Prior to cluster mempool, a policy was in place that
   disallowed non-TRUC transactions from being
   TX_RECONSIDERABLE in a package setting if it was below
   minrelay. This was meant to simplify reasoning about mempool
   trimming requirements with non-trivial transaction
   topologies in the mempool. This is no longer a concern
   post-cluster mempool, so this is relaxed.
   
   In effect, this makes 0-value parent transactions relayable
   through the network without the TRUC restrictions and
   thus the anti-pinning protections.

   1488315d76
9. instagibbs force-pushed on Nov 26, 2025
10. add release note about supporing non-TRUC <minrelay txns 22b7a25c4a
11. in doc/release-notes-33892.md:4 in fda7a16c02

    0@@ -0,0 +1,5 @@
    1+P2P and network changes
    2+-----------------------
    3+
    4+- All transaction versions includeing anon-TRUC can now be relayed when below minrelay,
    

    ---

    ---

    

    fanquake commented at 2:38 pm on November 26, 2025:

    LLM: s/includeing/including/
12. instagibbs force-pushed on Nov 26, 2025
13. in test/functional/mempool_ephemeral_dust.py:210 in 1488315d76 outdated

    206@@ -207,18 +207,16 @@ def test_nonzero_dust(self):
    207         self.connect_nodes(0, 1)
    208         assert_mempool_contents(self, self.nodes[0], expected=[])
    209 
    210-    # N.B. If individual minrelay requirement is dropped, this test can be dropped
    

    ---

    ---

    

    kevkevinpal commented at 6:29 pm on November 26, 2025:

    why not drop the whole test as per this comment?

    ---

    

    instagibbs commented at 4:26 pm on December 1, 2025:

    changed my mind; it’s good to have v2 ephemeral dust coverage since we don’t have much/any?
14. fanquake added this to the milestone 31.0 on Dec 4, 2025

Contributors
instagibbs DrahtBot fanquake kevkevinpal

Labels
TX fees and policy

Milestone
31.0