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Merge bitcoin/bitcoin#28591: kernel: chainparams updates for 26.x

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bd71f03df7 doc: update example pulls in release-process.md (fanquake)
b2ede22395 headerssync: update params for 26.x (fanquake)
f12f92b813 kernel: update m_assumed_* chain params for 26.x (fanquake)
a8c2e5e556 kernel: update chainTxData for 26.x (fanquake)
a9d070a6f8 kernel: update nMinimumChainWork & defaultAssumeValid for 26.x (fanquake)

Pull request description:

  Update chainparams pre `26.x` branch off.

  Note: Remember that some variance is expected in the m_assumed_* sizes.

  Closes #28572.

ACKs for top commit:
  Sjors:
    re-ACK bd71f03df7
  ajtowns:
    reACK bd71f03df7
  darosior:
    re-ACK bd71f03df7 for assumevalid and minchainwork params.

Tree-SHA512: c586b82711477bfc1fd9ac4c9c1130ccde29f75d652492c66ef5730f4a49b7da822a3ad2d9090468ea0c9f0e77d00c25f6a800600c81878d8141ce2ffb3724af
This commit is contained in:
fanquake
2023-10-09 14:17:19 +01:00
parent f4674444b2 bd71f03df7
commit 3003861e78
4 changed files with 27 additions and 27 deletions
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6
doc/release-process.md
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@@ -28,7 +28,7 @@ Release Process
#### Before branch-off
* Update hardcoded [seeds](/contrib/seeds/README.md), see [this pull request](https://github.com/bitcoin/bitcoin/pull/7415) for an example.
* Update hardcoded [seeds](/contrib/seeds/README.md), see [this pull request](https://github.com/bitcoin/bitcoin/pull/27488) for an example.
* Update the following variables in [`src/kernel/chainparams.cpp`](/src/kernel/chainparams.cpp) for mainnet, testnet, and signet:
- `m_assumed_blockchain_size` and `m_assumed_chain_state_size` with the current size plus some overhead (see
[this](#how-to-calculate-assumed-blockchain-and-chain-state-size) for information on how to calculate them).
@@ -36,7 +36,7 @@ Release Process
that causes rejection of blocks in the past history.
- `chainTxData` with statistics about the transaction count and rate. Use the output of the `getchaintxstats` RPC with an
`nBlocks` of 4096 (28 days) and a `bestblockhash` of RPC `getbestblockhash`; see
[this pull request](https://github.com/bitcoin/bitcoin/pull/20263) for an example. Reviewers can verify the results by running
[this pull request](https://github.com/bitcoin/bitcoin/pull/28591) for an example. Reviewers can verify the results by running
`getchaintxstats <window_block_count> <window_final_block_hash>` with the `window_block_count` and `window_final_block_hash` from your output.
- `defaultAssumeValid` with the output of RPC `getblockhash` using the `height` of `window_final_block_height` above
(and update the block height comment with that height), taking into account the following:
@@ -45,7 +45,7 @@ Release Process
- `nMinimumChainWork` with the "chainwork" value of RPC `getblockheader` using the same height as that selected for the previous step.
* Consider updating the headers synchronization tuning parameters to account for the chainparams updates.
The optimal values change very slowly, so this isn't strictly necessary every release, but doing so doesn't hurt.
- Update configuration variables in [`contrib/devtools/headerssync-params.py`](contrib/devtools/headerssync-params.py):
- Update configuration variables in [`contrib/devtools/headerssync-params.py`](/contrib/devtools/headerssync-params.py):
- Set `TIME` to the software's expected supported lifetime -- after this time, its ability to defend against a high bandwidth timewarp attacker will begin to degrade.
- Set `MINCHAINWORK_HEADERS` to the height used for the `nMinimumChainWork` calculation above.
- Check that the other variables still look reasonable.