82be652e40 doc: Improve ChainstateManager documentation, use consistent terms (Ryan Ofsky)
af455dcb39 refactor: Simplify pruning functions (TheCharlatan)
ae85c495f1 refactor: Delete ChainstateManager::GetAll() method (Ryan Ofsky)
6a572dbda9 refactor: Add ChainstateManager::ActivateBestChains() method (Ryan Ofsky)
491d827d52 refactor: Add ChainstateManager::m_chainstates member (Ryan Ofsky)
e514fe6116 refactor: Delete ChainstateManager::SnapshotBlockhash() method (Ryan Ofsky)
ee35250683 refactor: Delete ChainstateManager::IsSnapshotValidated() method (Ryan Ofsky)
d9e82299fc refactor: Delete ChainstateManager::IsSnapshotActive() method (Ryan Ofsky)
4dfe383912 refactor: Convert ChainstateRole enum to struct (Ryan Ofsky)
352ad27fc1 refactor: Add ChainstateManager::ValidatedChainstate() method (Ryan Ofsky)
a229cb9477 refactor: Add ChainstateManager::CurrentChainstate() method (Ryan Ofsky)
a9b7f5614c refactor: Add Chainstate::StoragePath() method (Ryan Ofsky)
840bd2ef23 refactor: Pass chainstate parameters to MaybeCompleteSnapshotValidation (Ryan Ofsky)
1598a15aed refactor: Deduplicate Chainstate activation code (Ryan Ofsky)
9fe927b6d6 refactor: Add Chainstate m_assumeutxo and m_target_utxohash members (Ryan Ofsky)
6082c84713 refactor: Add Chainstate::m_target_blockhash member (Ryan Ofsky)
de00e87548 test: Fix broken chainstatemanager_snapshot_init check (Ryan Ofsky)
Pull request description:
This PR contains the first part of #28608, which tries to make assumeutxo code more maintainable, and improve it by not locking `cs_main` for a long time when the snapshot block is connected, and by deleting the snapshot validation chainstate when it is no longer used, instead of waiting until the next restart.
The changes in this PR are just refactoring. They make `Chainstate` objects self-contained, so for example, it is possible to determine what blocks to connect to a chainstate without querying `ChainstateManager`, and to determine whether a Chainstate is validated without basing it on inferences like `&cs != &ActiveChainstate()` or `GetAll().size() == 1`.
The PR also tries to make assumeutxo terminology less confusing, using "current chainstate" to refer to the chainstate targeting the current network tip, and "historical chainstate" to refer to the chainstate downloading old blocks and validating the assumeutxo snapshot. It removes uses of the terms "active chainstate," "usable chainstate," "disabled chainstate," "ibd chainstate," and "snapshot chainstate" which are confusing for various reasons.
ACKs for top commit:
maflcko:
re-review ACK 82be652e40🕍
fjahr:
re-ACK 82be652e40
sedited:
Re-ACK 82be652e40
Tree-SHA512: 81c67abba9fc5bb170e32b7bf8a1e4f7b5592315b4ef720be916d5f1f5a7088c0c59cfb697744dd385552f58aa31ee36176bae6a6e465723e65861089a1252e5
Remove hardcoded references to m_ibd_chainstate and m_snapshot_chainstate so
MaybeCompleteSnapshotValidation function can be simpler and focus on validating
the snapshot without dealing with internal ChainstateManager states.
This is a step towards being able to validate the snapshot outside of
ActivateBestChain loop so cs_main is not locked for minutes when the snapshot
block is connected.
Get rid of m_disabled/IsUsable members. Instead of marking chains disabled for
different reasons, store chainstate assumeutxo status explicitly and use that
information to determine how chains should be treated.
b8d279a81c doc: add comment to explain correctness of GatherClusters() (Suhas Daftuar)
aba7500a30 Fix parameter name in getmempoolcluster rpc (Suhas Daftuar)
6c1325a091 Rename weight -> clusterweight in RPC output, and add doc explaining mempool terminology (Suhas Daftuar)
bc2eb931da Require mempool lock to be held when invoking TRUC checks (Suhas Daftuar)
957ae23241 Improve comments for getTransactionAncestry to reference cluster counts instead of descendants (Suhas Daftuar)
d97d6199ce Fix comment to reference cluster limits, not chain limits (Suhas Daftuar)
a1b341ef98 Sanity check feerate diagram in CTxMemPool::check() (Suhas Daftuar)
23d6f457c4 rpc: improve getmempoolcluster output (Suhas Daftuar)
d2dcd37aac Avoid using mapTx.modify() to update modified fees (Suhas Daftuar)
d84ffc24d2 doc: add release notes snippet for cluster mempool (Suhas Daftuar)
b0417ba944 doc: Add design notes for cluster mempool and explain new mempool limits (Suhas Daftuar)
2d88966e43 miner: replace "package" with "chunk" (Suhas Daftuar)
6f3e8eb300 Add a GetFeePerVSize() accessor to CFeeRate, and use it in the BlockAssembler (Suhas Daftuar)
b5f245f6f2 Remove unused DEFAULT_ANCESTOR_SIZE_LIMIT_KVB and DEFAULT_DESCENDANT_SIZE_LIMIT_KVB (Suhas Daftuar)
1dac54d506 Use cluster size limit instead of ancestor size limit in txpackage unit test (Suhas Daftuar)
04f65488ca Use cluster size limit instead of ancestor/descendant size limits when sanity checking TRUC policy limits (Suhas Daftuar)
634291a7dc Use cluster limits instead of ancestor/descendant limits when sanity checking package policy limits (Suhas Daftuar)
fc18ef1f3f Remove ancestor and descendant vsize limits from MemPoolLimits (Suhas Daftuar)
ed8e819121 Warn user if using -limitancestorsize/-limitdescendantsize that the options have no effect (Suhas Daftuar)
80d8df2d47 Invoke removeUnchecked() directly in removeForBlock() (Suhas Daftuar)
9292570f4c Rewrite GetChildren without sets (Suhas Daftuar)
3e39ea8c30 Rewrite removeForReorg to avoid using sets (Suhas Daftuar)
a3c31dfd71 scripted-diff: rename AddToMempool -> TryAddToMempool (Suhas Daftuar)
a5a7905d83 Simplify removeRecursive (Suhas Daftuar)
01d8520038 Remove unused argument to RemoveStaged (Suhas Daftuar)
bc64013e6f Remove unused variable (cacheMap) in mempool (Suhas Daftuar)
Pull request description:
As suggested in the main cluster mempool PR (https://github.com/bitcoin/bitcoin/pull/28676#pullrequestreview-3177119367), I've pulled out some of the non-essential optimizations and cleanups into this separate PR.
Will continue to add more commits here to address non-blocking suggestions/improvements as they come up.
ACKs for top commit:
instagibbs:
ACK b8d279a81c
sipa:
ACK b8d279a81c
Tree-SHA512: 1a05e99eaf8db2e274a1801307fed5d82f8f917e75ccb9ab0e1b0eb2f9672b13c79d691d78ea7cd96900d0e7d5031a3dd582ebcccc9b1d66eb7455b1d3642235
The "zeromq" feature is already enabled by default in `vcpkg.json`, and
there appears to be no reason to omit this configuration option when
building on Windows.
c34bc01b2f doc: clarify and cleanup macOS fuzzing notes (dergoegge)
Pull request description:
* Remove or consolidate macOS notes sprinkled throughout the doc into dedicated section
* Note that support for fuzzing on macOS is not maintained
Closes#33731
ACKs for top commit:
frankomosh:
ACK c34bc01
janb84:
Concept ACK c34bc01b2f
darosior:
reACK c34bc01b2f
brunoerg:
ACK c34bc01b2f
rkrux:
ACK c34bc01b2f
ismaelsadeeq:
reACK c34bc01b2f
Tree-SHA512: 76a79a102b4941b31bd05b65aa37beb0f48d8bb7b07f4ec2fa55be7e6b4880ce7031fe9a7764984dbd879bf6238dc61689006a9225deee39b8b759722078b808
17cf9ff7ef Use cluster size limit for -maxmempool bound, and allow -maxmempool=0 in general (Suhas Daftuar)
315e43e5d8 Sanity check `GetFeerateDiagram()` in CTxMemPool::check() (Suhas Daftuar)
de2e9a24c4 test: extend package rbf functional test to larger clusters (Suhas Daftuar)
4ef4ddb504 doc: update policy/packages.md for new package acceptance logic (Suhas Daftuar)
79f73ad713 Add check that GetSortedScoreWithTopology() agrees with CompareMiningScoreWithTopology() (Suhas Daftuar)
a86ac11768 Update comments for CTxMemPool class (Suhas Daftuar)
9567eaa66d Invoke TxGraph::DoWork() at appropriate times (Suhas Daftuar)
6c5c44f774 test: add functional test for new cluster mempool RPCs (Suhas Daftuar)
72f60c877e doc: Update mempool_replacements.md to reflect feerate diagram checks (Suhas Daftuar)
21693f031a Expose cluster information via rpc (Suhas Daftuar)
72e74e0d42 fuzz: try to add more code coverage for mempool fuzzing (Suhas Daftuar)
f107417490 bench: add more mempool benchmarks (Suhas Daftuar)
7976eb1ae7 Avoid violating mempool policy limits in tests (Suhas Daftuar)
84de685cf7 Stop tracking parents/children outside of txgraph (Suhas Daftuar)
88672e205b Rewrite GatherClusters to use the txgraph implementation (Suhas Daftuar)
1ca4f01090 Fix miniminer_tests to work with cluster limits (Suhas Daftuar)
1902111e0f Eliminate CheckPackageLimits, which no longer does anything (Suhas Daftuar)
3a646ec462 Rework RBF and TRUC validation (Suhas Daftuar)
19b8479868 Make getting parents/children a function of the mempool, not a mempool entry (Suhas Daftuar)
5560913e51 Rework truc_policy to use descendants, not children (Suhas Daftuar)
a4458d6c40 Use txgraph to calculate descendants (Suhas Daftuar)
c8b6f70d64 Use txgraph to calculate ancestors (Suhas Daftuar)
241a3e666b Simplify ancestor calculation functions (Suhas Daftuar)
b9cec7f0a1 Make removeConflicts private (Suhas Daftuar)
0402e6c780 Remove unused limits from CalculateMemPoolAncestors (Suhas Daftuar)
08be765ac2 Remove mempool logic designed to maintain ancestor/descendant state (Suhas Daftuar)
fc4e3e6bc1 Remove unused members from CTxMemPoolEntry (Suhas Daftuar)
ff3b398d12 mempool: eliminate accessors to mempool entry ancestor/descendant cached state (Suhas Daftuar)
b9a2039f51 Eliminate use of cached ancestor data in miniminer_tests and truc_policy (Suhas Daftuar)
ba09fc9774 mempool: Remove unused function CalculateDescendantMaximum (Suhas Daftuar)
8e49477e86 wallet: Replace max descendant count with cluster_count (Suhas Daftuar)
e031085fd4 Eliminate Single-Conflict RBF Carve Out (Suhas Daftuar)
cf3ab8e1d0 Stop enforcing descendant size/count limits (Suhas Daftuar)
89ae38f489 test: remove rbf carveout test from mempool_limit.py (Suhas Daftuar)
c0bd04d18f Calculate descendant information for mempool RPC output on-the-fly (Suhas Daftuar)
bdcefb8a8b Use mempool/txgraph to determine if a tx has descendants (Suhas Daftuar)
69e1eaa6ed Add test case for cluster size limits to TRUC logic (Suhas Daftuar)
9cda64b86c Stop enforcing ancestor size/count limits (Suhas Daftuar)
1f93227a84 Remove dependency on cached ancestor data in mini-miner (Suhas Daftuar)
9fbe0a4ac2 rpc: Calculate ancestor data from scratch for mempool rpc calls (Suhas Daftuar)
7961496dda Reimplement GetTransactionAncestry() to not rely on cached data (Suhas Daftuar)
feceaa42e8 Remove CTxMemPool::GetSortedDepthAndScore (Suhas Daftuar)
21b5cea588 Use cluster linearization for transaction relay sort order (Suhas Daftuar)
6445aa7d97 Remove the ancestor and descendant indices from the mempool (Suhas Daftuar)
216e693729 Implement new RBF logic for cluster mempool (Suhas Daftuar)
ff8f115dec policy: Remove CPFP carveout rule (Suhas Daftuar)
c3f1afc934 test: rewrite PopulateMempool to not violate mempool policy (cluster size) limits (Suhas Daftuar)
47ab32fdb1 Select transactions for blocks based on chunk feerate (Suhas Daftuar)
dec138d1dd fuzz: remove comparison between mini_miner block construction and miner (Suhas Daftuar)
6c2bceb200 bench: rewrite ComplexMemPool to not create oversized clusters (Suhas Daftuar)
1ad4590f63 Limit mempool size based on chunk feerate (Suhas Daftuar)
b11c89cab2 Rework miner_tests to not require large cluster limit (Suhas Daftuar)
95a8297d48 Check cluster limits when using -walletrejectlongchains (Suhas Daftuar)
95762e6759 Do not allow mempool clusters to exceed configured limits (Suhas Daftuar)
edb3e7cdf6 [test] rework/delete feature_rbf tests requiring large clusters (glozow)
435fd56711 test: update feature_rbf.py replacement test (Suhas Daftuar)
34e32985e8 Add new (unused) limits for cluster size/count (Suhas Daftuar)
838d7e3553 Add transactions to txgraph, but without cluster dependencies (Suhas Daftuar)
d5ed9cb3eb Add accessor for sigops-adjusted weight (Suhas Daftuar)
1bf3b51396 Add sigops adjusted weight calculator (Suhas Daftuar)
c18c68a950 Create a txgraph inside CTxMemPool (Suhas Daftuar)
29a94d5b2f Make CTxMemPoolEntry derive from TxGraph::Ref (Suhas Daftuar)
92b0079fe3 Allow moving CTxMemPoolEntry objects, disallow copying (Suhas Daftuar)
6c73e47448 mempool: Store iterators into mapTx in mapNextTx (Suhas Daftuar)
51430680ec Allow moving an Epoch::Marker (Suhas Daftuar)
Pull request description:
[Reopening #28676 here as a new PR, because GitHub is slow to load the page making it hard to scroll through and see comments. Also, that PR was originally opened with a prototype implementation which has changed significantly with the introduction of `TxGraph`.]
This is an implementation of the [cluster mempool proposal](https://delvingbitcoin.org/t/an-overview-of-the-cluster-mempool-proposal/393).
This branch implements the following observable behavior changes:
- Maintains a partitioning of the mempool into connected clusters (via the `txgraph` class), which are limited in vsize to 101 kvB by default, and limited in count to 64 by default.
- Each cluster is sorted ("linearized") to try to optimize for selecting highest-feerate-subsets of a cluster first
- Transaction selection for mining is updated to use the cluster linearizations, selecting highest feerate "chunks" first for inclusion in a block template.
- Mempool eviction is updated to use the cluster linearizations, selecting lowest feerate "chunks" first for removal.
- The RBF rules are updated to: (a) drop the requirement that no new inputs are introduced; (b) change the feerate requirement to instead check that the feerate diagram of the mempool will strictly improve; (c) replace the direct conflicts limit with a directly-conflicting-clusters limit.
- The CPFP carveout rule is eliminated (it doesn't make sense in a cluster-limited mempool)
- The ancestor and descendant limits are no longer enforced.
- New cluster count/cluster vsize limits are now enforced instead.
- Transaction relay now uses chunk feerate comparisons to determine the order that newly received transactions are announced to peers.
Additionally, the cached ancestor and descendant data are dropped from the mempool, along with the multi_index indices that were maintained to sort the mempool by ancestor and descendant feerates. For compatibility (eg with wallet behavior or RPCs exposing this), this information is now calculated dynamically instead.
ACKs for top commit:
instagibbs:
reACK 17cf9ff7ef
glozow:
reACK 17cf9ff7ef
sipa:
ACK 17cf9ff7ef
Tree-SHA512: bbde46d913d56f8d9c0426cb0a6c4fa80b01b0a4c2299500769921f886082fb4f51f1694e0ee1bc318c52e1976d7ebed8134a64eda0b8044f3a708c04938eee7
288b8c30be doc: Drop (default: none) from -i2psam description (Ryan Ofsky)
f6ec3519a3 init: Require explicit -asmap filename (Ryan Ofsky)
Pull request description:
Currently, if `-asmap` is specified without a filename bitcoind tries to load `ip_asn.map` data file.
This change now requires `-asmap=ip_asn.map` or another filename to be specified explicitly.
The change is intended to make behavior of the option explicit and avoid confusion reported https://github.com/bitcoin/bitcoin/issues/33386 where documentation specifies a default file which is not actually loaded by default. It was originally implemented in
https://github.com/bitcoin/bitcoin/pull/33631#issuecomment-3410302383 and various alternatives are discussed there.
ACKs for top commit:
brunoerg:
reACK 288b8c30be
fjahr:
re-ACK 288b8c30be
vostrnad:
utACK 288b8c30be
achow101:
ACK 288b8c30be
Tree-SHA512: 11a38a03892a58d6ccc1505cfbf915f58a86df9891761d89dc54b92d40593ee3cbb2d7c7bdbb922b871b3529072ef7f34cc98393aff6e8f0633b56352315b27c
de7c3587cd doc: Update add checksum instructions in tutorial (Ben Westgate)
2a46e94a16 doc: Update multisig-tutorial.md to use multipath descriptors (Ben Westgate)
Pull request description:
### Summary
Update `doc/multisig-tutorial.md` to use multipath descriptor format
instead of separate external/internal descriptors. The tutorial now:
- extracts a single `xpub_n` per participant
- constructs a multipath `wsh(sortedmulti(...))` descriptor with `<0;1>`
change index semantics
- uses `getdescriptorinfo` to compute descriptor checksum
- explains that `importdescriptors` expands the multipath descriptor
into internal and external descriptors
- update `/test/functional/wallet_multisig_descriptor_psbt.py` functional test / documentation to use multi-path descriptors
---
### Motivation
A single multipath descriptor is the most convenient pattern for multisig; our documentation should use it.
---
### What changed
- replaced extraction of `external_xpub_n` and `internal_xpub_n` with
extraction of a single `xpub_n`
- removed instructions to create and import separate external/internal
descriptors
- added instructions to build a multipath `wsh(sortedmulti(...))`
descriptor and derive checksum with `getdescriptorinfo`
- checksum field is parsed and appended as the multipath descriptor is not the canonical "desc" output
- clarified that `importdescriptors` automatically expands multipath
descriptors into internal and external forms
- similar changes to the functional test: wallet_multisig_descriptor_psbt.
---
### Testing
I have run the updated shell snippets and confirmed the multipath descriptor produces the same `listdescriptors` output after importing as the two descriptor method in bitcoin:master.
---
### Related issues / PRs
This tutorial change references the multipath descriptor
consolidation (see commit / PR referenced in the change). The commit
message points to bitcoin#22838 as the upstream change that enables
this behavior.
---
### Release note (for changelog)
Documentation: update multisig tutorial and multisig functional test to use multipath descriptors
ACKs for top commit:
Sjors:
utACK de7c3587cd
kannapoix:
Core review ACK: de7c3587cd
achow101:
ACK de7c3587cd
rkrux:
crACK de7c3587cd
Tree-SHA512: ca7275d8ad04922b3fa8d2a3084ff96aa2104265f1fc2f749814dd16776351ab692d67e7e643d08052f7492e3eaa1a9a4dfe3470163e57939a49f782d3df511a
0aebdac95d init: completely remove `-maxorphantx` option (Sebastian Falbesoner)
Pull request description:
This is a small follow-up for #32941 (commit 1384dbaf6d), removing the `-maxorphantx` option completely, now that v30 has been released. If removing it for v31 is seen as controversial/premature (I personally don't think it is), the merge can be delayed for a future release.
ACKs for top commit:
maflcko:
lgtm ACK 0aebdac95d
achow101:
ACK 0aebdac95d
w0xlt:
ACK 0aebdac95d
rkrux:
lgtm ACK 0aebdac95d
stickies-v:
ACK 0aebdac95d
Tree-SHA512: 818633b903174387ae259acb1d1e8ce07f78e158de2c150742ef0950b0f5d62af553e4e35ab962432306e04e07c45b1be11dbae459a8b62c4b9a6b5ef1746d26
e346ecae83 Add eclipse, partitioning, and fingerprinting note to i2p.md (da1sychain)
19a6a3e75e Add eclipse, partitioning, and fingerprinting note in tor.md (da1sychain)
Pull request description:
Operating a Bitcoin node across multiple networks poses some fingerprinting risk. [0] Currently, this is not clear from the documentation and may be causing direct harm to users who are unaware of this.
The included documentation change indicates this risk factor but also notes that operating a node across multiple networks does provide an important benefit (increases the cost of eclipse and partitioning attacks) and is thus not discouraged outright.
The i2p documentation did not include a privacy recommendations section, so that is added as well.
[0] https://delvingbitcoin.org/t/fingerprinting-nodes-via-addr-requests/1786
ACKs for top commit:
danielabrozzoni:
ACK e346ecae83
rkrux:
crACK e346ecae83
mzumsande:
ACK e346ecae83
glozow:
lgtm ACK e346ecae83
Tree-SHA512: d35a00f604ed70bb9d2339066612414f590d8cfe4d02eb0f586364b32016c7259aaaf059bc5162779f36b06fb06508ff7162022bdf65aa22a840bc34f69b7b50
0698c6b494 doc: Correct `pkgin` command usage on NetBSD (Hennadii Stepanov)
Pull request description:
When using `pkgin` on NetBSD, the `install` command must be specified.
ACKs for top commit:
fanquake:
ACK 0698c6b494
Tree-SHA512: 840fc1621d6fa9ad43501a3691a31cffd66c1ac8d34167f7ab0fe33e1a395198c241b3c31f3d0ebc314e28c0edb6055cc2ca3deba6408dcbd14390fd679a4803
dee7eec643 doc: mention coverage build in quickstart section (frankomosh)
Pull request description:
Adds a single comment in the libFuzzer quick-start that links to the Developer Notes coverage section. No build flags are changed or shown.
ACKs for top commit:
janb84:
ACK dee7eec643
dergoegge:
ACK dee7eec643
Tree-SHA512: 2fe5ffb6c3d06f75694646473c29b4cc9fe571f4659631ec174d444a14716771308eedeb7acab3bef7f62e9bfa8ed0462da0163b214cccdc6a9ad63bbf66d2a0
The removed comment become obsolete after bitcoin/bitcoin#32697 and
bitcoin/bitcoin#32881.
-BEGIN VERIFY SCRIPT-
sed -i "s/ Some tests are disabled if Python 3 is not available.//g" \
$( git grep -l " Some tests are disabled if Python 3 is not available." ./doc/ )
-END VERIFY SCRIPT-
Used to display available configuration options, for consistency with recent changes in Unix build docs
Co-authored-by: stickies-v <stickies-v@users.noreply.github.com>
Currently, if `-asmap` is specified without a filename, bitcoind tries to load
`ip_asn.map` data file.
This change now requires `-asmap=ip_asn.map` or another filename to be
specified explicitly.
The change is intended to make behavior of the option explicit avoid confusion
reported https://github.com/bitcoin/bitcoin/issues/33386 where documentation
specifies a default file which is not actually loaded by default. It was
originally implemented in
https://github.com/bitcoin/bitcoin/pull/33631#issuecomment-3410302383 and
various alternatives are discussed there.
Co-authored-by: Fabian Jahr <fjahr@protonmail.com>
fa0fa0f700 refactor: Revert "disable self-assign warning for tests" (MarcoFalke)
faed118fb3 build: Bump clang minimum supported version to 17 (MarcoFalke)
Pull request description:
Most supported operating systems ship with clang-17 (or later), so bump the minimum to that and allow new code to drop workarounds for previous clang bugs.
(Apart from dropping the small workaround, this bump allows the `ci_native_nowallet_libbitcoinkernel` CI to run on riscv64 without running into an ICE with clang-16.)
This patch will only be released in version 31.x, next year (2026).
For reference:
* https://packages.debian.org/bookworm/clang-19
* https://packages.ubuntu.com/noble/clang (clang-18)
* CentOS-like 8/9/10 ship clang-17 (and later) via Stream
* FreeBSD 12/13 ship clang-17 (and later) via packages
* OpenSuse Tumbleweed ships with https://software.opensuse.org/package/clang (clang21); No idea about OpenSuse Leap
On operating systems where the clang version is not shipped by default, the user would have to use GCC, or install clang in a different way. For example:
* https://packages.debian.org/bookworm/g++ (g++-12)
* https://packages.ubuntu.com/jammy/g++ (g++-11)
* https://apt.llvm.org/, or nix, or guix, or compile clang from source, ...
*Ubuntu 22.04 LTS does not ship with clang-16 (the previous minimum required), nor with clang-17, so one of the above workarounds is needed there.*
macOS 14 is unaffected, and the previous minimum requirement of Xcode15.0 remains, see also 919e6d01e9/depends/hosts/darwin.mk (L3-L4). (Modulo compiling the fuzz tests, which requires 919e6d01e9/.github/workflows/ci.yml (L149))
ACKs for top commit:
janb84:
Concept ACK fa0fa0f700
l0rinc:
Code review ACK fa0fa0f700
hebasto:
ACK fa0fa0f700.
Tree-SHA512: 5973cec39982f80b8b43e493cde012d9d1ab75a0362300b007d155db9f871c6341e7e209e5e63f0c3ca490136b684683de270136d62cb56f6b00b0ac0331dc36
53e4951a5b Switch to ANSI Windows API in `fsbridge::fopen()` function (Hennadii Stepanov)
dbe770d921 Switch to ANSI Windows API in `Win32ErrorString()` function (Hennadii Stepanov)
06d0be4e22 Remove no longer necessary `WinCmdLineArgs` class (Hennadii Stepanov)
f366408492 cmake: Set process code page to UTF-8 on Windows (Hennadii Stepanov)
dccbb17806 Set minimum supported Windows version to 1903 (May 2019 Update) (Hennadii Stepanov)
Pull request description:
The main goal is to remove [deprecated](https://github.com/bitcoin/bitcoin/issues/32361) code (removed in C++26).
This PR employs Microsoft's modern [approach](https://learn.microsoft.com/en-us/windows/apps/design/globalizing/use-utf8-code-page) to handling UTF-8:
> Until recently, Windows has emphasized "Unicode" -W variants over -A APIs. However, recent releases have used the ANSI code page and -A APIs as a means to introduce UTF-8 support to apps. If the ANSI code page is configured for UTF-8, then -A APIs typically operate in UTF-8. This model has the benefit of supporting existing code built with -A APIs without any code changes.
TODO:
- [x] Handle application manifests properly when building with MSVC.
- [x] Bump the minimum supported Windows version to 1903 (May 2019 Update).
- [x] Remove all remaining use cases of the deprecated `std:wstring_convert`.
- The instance in `subprocess.h` will be addressed in a follow-up PR, as additional tests are likely needed.
- The usage in `common/system.cpp` is handled in https://github.com/bitcoin/bitcoin/pull/32566.
Resolves partially https://github.com/bitcoin/bitcoin/issues/32361.
ACKs for top commit:
laanwj:
re-ACK 53e4951a5b
hodlinator:
re-ACK 53e4951a5b
davidgumberg:
untested crACK 53e4951a5b
Tree-SHA512: 0dbe9badca8b979ac2b4814fea6e4a7e53c423a1c96cb76ce894253137d3640a87631a5b22b9645e8f0c2a36a107122eb19ed8e92978c17384ffa8b9ab9993b5
944e5ff848 doc: mention key removal in rpc interface modification (rkrux)
Pull request description:
A discussion in a previous PR 32618 prompted me to add this note: https://github.com/bitcoin/bitcoin/pull/32618#discussion_r2181951390
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ACKs for top commit:
maflcko:
lgtm ACK 944e5ff848
stickies-v:
ACK 944e5ff848
glozow:
lgtm ACK 944e5ff848
Tree-SHA512: f64c086c99e7c73a3ae7d60b2e8e06c8e7a3a49305a66d5c5a96db9b4ebbd01928ab5ccbcbdac26f400d16662f84469c448625e1f55ec2a9a920eff8a05fc379
cc5dda1de3 headerssync: Make HeadersSyncState more flexible and move constants (Hodlinator)
8fd1c2893e test(headerssync): Test returning of pow_validated_headers behavior (Hodlinator)
7b00643ef5 test(headerssync): headers_sync_chainwork test improvements (Hodlinator)
04eeb9578c doc(test): Improve comments (Hodlinator)
fe896f8faa refactor(test): Store HeadersSyncState on the stack (Hodlinator)
f03686892a refactor(test): Break up headers_sync_state (Hodlinator)
e984618d0b refactor(headerssync): Process spans of headers (Hodlinator)
a4ac9915a9 refactor(headerssync): Extract test constants ahead of breakup into functions (Hodlinator)
Pull request description:
### Background
As part of the release process we often run *contrib/devtools/headerssync-params.py* and increase the values of the constants `HEADER_COMMITMENT_PERIOD` and `REDOWNLOAD_BUFFER_SIZE` in *src/headerssync.cpp* as per *doc/release-process.md* (example: 11a2d3a63e). This helps fine tune the memory consumption per `HeadersSyncState`-instance in the face of malicious peers.
(The `REDOWNLOAD_BUFFER_SIZE`/`HEADER_COMMITMENT_PERIOD` ratio determines how many Headers Sync commitment bits must match between PRESYNC & REDOWNLOAD phases before we start permanently storing headers from a peer. For more details see comments in *src/headerssync.h* and *contrib/devtools/headerssync-params.py*).
### Problem: Not feeding back headers until completing sync
During v30 release process #33274 made `REDOWNLOAD_BUFFER_SIZE` exceed the `target_blocks` constant used to control the length of chains generated for testing Headers Sync (`15000`, *headers_sync_chainwork_tests.cpp*).
The `HeadersSyncState::m_redownloaded_headers`-buffer now does not reach the `REDOWNLOAD_BUFFER_SIZE`-threshold during those unit tests. As a consequence `HeadersSyncState::PopHeadersReadyForAcceptance()` will not start feeding back headers until the PoW threshold has been met. While this will not cause the unit test to start failing on master, it means we have gone from testing behavior that resembles mainnet (way more than `REDOWNLOAD_BUFFER_SIZE` headers to reach the PoW limit), to behavior that is not possible/expected there.
### Solution
Avoid testing this unrealistic condition of completing Headers Sync before reaching `REDOWNLOAD_BUFFER_SIZE` by making tests able to define their own values through the new `HeadersSyncParams` instead of having them hard-coded for all chains & tests.
### Commits
* First 6 commits refactor and improve the unit tests in order to clarify latter changes.
* We then add checks for the behavior around the `REDOWNLOAD_BUFFER_SIZE` threshold.
* The main change: we extract the section from *headerssync.cpp* containing the constants to *kernel/chainparams.cpp*, making `HeadersSyncState` no longer hard-coded to mainnet.
### Notes
This PR used to be called "headerssync: Preempt unrealistic unit test behavior".
ACKs for top commit:
l0rinc:
reACK cc5dda1de3
marcofleon:
code review ACK cc5dda1de3
danielabrozzoni:
reACK cc5dda1de3
Tree-SHA512: ccc824dcbbb8ad5ae98c3bf5808b38467aac0230739898a758c9b939eecd74f982df088fa0ba81cc1c1732f19a607b135a6e9577bb9fcf7f8570567ce92f66e6
1aaaaa078b fuzz: Drop unused workaround after Apple-Clang bump (MarcoFalke)
fadad7a494 Drop support for EOL macOS 13 (MarcoFalke)
Pull request description:
Now that macOS 13 is EOL (https://en.wikipedia.org/wiki/MacOS_Ventura), it seems odd to still support it.
(macOS Ventura 13.7.8 received its final security update on 20 Aug 2025: https://support.apple.com/en-us/100100)
This patch will only be released in version 31.x, another 6 months out from now.
So:
* Update the depends build and release note template to drop EOL macOS 13.
* As a result, update the earliest Xcode to version 16 in CI.
* Also, bump the macOS CI runner to version 15, to avoid issues when version 14 will be at its EOL in about 1 year.
This also allows to drop a small workaround in the fuzz tests and unlocks libcpp hardening (https://github.com/bitcoin/bitcoin/pull/33462)
ACKs for top commit:
stickies-v:
re-ACK 1aaaaa078b
l0rinc:
code review ACK 1aaaaa078b
hodlinator:
re-ACK 1aaaaa078b
hebasto:
ACK 1aaaaa078b.
Tree-SHA512: 6d247a8432ef8ea8c6ff2a221472b278f8344346b172980299507f9898bb9e8e16480c128b1f4ca692bcbcc393da2b2fd6895ac5f118bc09e0f30f910529d20c
