Andrew Chow f3bc1a7282 Merge bitcoin/bitcoin#26265: POLICY: Relax MIN_STANDARD_TX_NONWITNESS_SIZE to 65 non-witness bytes ... b2aa9e8528 Add release note for MIN_STANDARD_TX_NONWITNESS_SIZE relaxation (Greg Sanders) 8c5b3646b5 Relax MIN_STANDARD_TX_NONWITNESS_SIZE to 65 non-witness bytes (Greg Sanders) Pull request description: Since the original fix was set to be a "reasonable" transaction to reduce allocations and the true motivation later revealed, it makes sense to relax this check to something more principled. There are more exotic transaction patterns that could take advantage of a relaxed requirement, such as 1 input, 1 output OP_RETURN to burn a utxo to fees for CPFP purposes when change isn't practical. Two changes could be accomplished: 1) Anything not 64 bytes could be allowed 2) Anything above 64 bytes could be allowed In the Great Consensus Cleanup, suggestion (2) was proposed as a consensus change, and is the simpler of the two suggestions. It would not allow an "empty" OP_RETURN but would reduce the required padding from 22 bytes to 5. The functional test is also modified to test the actual case we care about: 64 bytes Related mailing list discussions here: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2022-October/020995.html And a couple years earlier: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2020-May/017883.html ACKs for top commit: achow101: reACK b2aa9e8528 glozow: reACK b2aa9e8528 pablomartin4btc: re-ACK b2aa9e8528 jonatack: ACK b2aa9e8528 with some suggestions Tree-SHA512: c1ec1af9ddcf31b2272209a4f1ee0c5607399f8172e5a1dfd4604cf98bfb933810dd9369a5917ad122add003327c9fcf6ee26995de3aca41d5c42dba527991ad		2022-12-21 12:58:46 -05:00
..
__init__.py	lint: enable mypy checking for missing imports	2021-10-16 09:14:37 +08:00
blockheader_testnet3.hex	test: Test that low difficulty chain fork is rejected	2019-08-16 13:02:16 -04:00
invalid_txs.py	Relax MIN_STANDARD_TX_NONWITNESS_SIZE to 65 non-witness bytes	2022-12-19 10:03:51 -05:00
rpc_bip67.json	Test sortedmulti descriptor using BIP 67 tests	2019-10-08 13:56:56 -04:00
rpc_decodescript.json	Add rawtr() descriptor for P2TR with unknown tweak	2022-07-19 17:36:08 -04:00
rpc_getblockstats.json	test: Test exclusion of OP_RETURN from getblockstats	2022-10-23 01:33:41 +02:00
rpc_psbt.json	tests: Test that PSBT_OUT_TAP_TREE is included correctly	2022-10-06 15:32:51 -04:00