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Alchemy/bitcoin-22.0/doc/release-process.md

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Release Process

Branch updates

Before every release candidate

Before every major and minor release

  • Update bips.md to account for changes since the last release (don't forget to bump the version number on the first line).
  • Update version in configure.ac (don't forget to set CLIENT_VERSION_RC to 0).
  • Write release notes (see "Write the release notes" below).

Before every major release

Before branch-off

  • Update hardcoded seeds, see this pull request for an example.
  • Update src/chainparams.cpp m_assumed_blockchain_size and m_assumed_chain_state_size with the current size plus some overhead (see this for information on how to calculate them).
  • Update src/chainparams.cpp chainTxData with statistics about the transaction count and rate. Use the output of the getchaintxstats RPC, see this pull request 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.
  • Update src/chainparams.cpp nMinimumChainWork and defaultAssumeValid (and the block height comment) with information from the getblockheader (and getblockhash) RPCs.
    • The selected value must not be orphaned so it may be useful to set the value two blocks back from the tip.
    • Testnet should be set some tens of thousands back from the tip due to reorgs there.
    • This update should be reviewed with a reindex-chainstate with assumevalid=0 to catch any defect that causes rejection of blocks in the past history.
  • Clear the release notes and move them to the wiki (see "Write the release notes" below).
  • Translations on Transifex
    • Create a new resource named after the major version with the slug [bitcoin.qt-translation-<RRR>x], where RRR is the major branch number padded with zeros. Use src/qt/locale/bitcoin_en.xlf to create it.
    • In the project workflow settings, ensure that Translation Memory Fill-up is enabled and that Translation Memory Context Matching is disabled.
    • Update the Transifex slug in .tx/config to the slug of the resource created in the first step. This identifies which resource the translations will be synchronized from.
    • Make an announcement that translators can start translating for the new version. You can use one of the previous announcements as a template.
    • Change the auto-update URL for the resource to master, e.g. https://raw.githubusercontent.com/bitcoin/bitcoin/master/src/qt/locale/bitcoin_en.xlf. (Do this only after the previous steps, to prevent an auto-update from interfering.)

After branch-off (on the major release branch)

  • Update the versions.
  • Create a pinned meta-issue for testing the release candidate (see this issue for an example) and provide a link to it in the release announcements where useful.
  • Translations on Transifex
    • Change the auto-update URL for the new major version's resource away from master and to the branch, e.g. https://raw.githubusercontent.com/bitcoin/bitcoin/<branch>/src/qt/locale/bitcoin_en.xlf. Do not forget this or it will keep tracking the translations on master instead, drifting away from the specific major release.

Before final release

  • Merge the release notes from the wiki into the branch.
  • Ensure the "Needs release note" label is removed from all relevant pull requests and issues.

Tagging a release (candidate)

To tag the version (or release candidate) in git, use the make-tag.py script from bitcoin-maintainer-tools. From the root of the repository run:

../bitcoin-maintainer-tools/make-tag.py v(new version, e.g. 0.20.0)

This will perform a few last-minute consistency checks in the build system files, and if they pass, create a signed tag.

Building

First time / New builders

Install Guix using one of the installation methods detailed in contrib/guix/INSTALL.md.

Check out the source code in the following directory hierarchy.

cd /path/to/your/toplevel/build
git clone https://github.com/bitcoin-core/guix.sigs.git
git clone https://github.com/bitcoin-core/bitcoin-detached-sigs.git
git clone https://github.com/bitcoin/bitcoin.git

Write the release notes

Open a draft of the release notes for collaborative editing at https://github.com/bitcoin-core/bitcoin-devwiki/wiki.

For the period during which the notes are being edited on the wiki, the version on the branch should be wiped and replaced with a link to the wiki which should be used for all announcements until -final.

Generate the change log. As this is a huge amount of work to do manually, there is the list-pulls script to do a pre-sorting step based on github PR metadata. See the documentation in the README.md.

Generate list of authors:

git log --format='- %aN' v(current version, e.g. 0.20.0)..v(new version, e.g. 0.20.1) | sort -fiu

Setup and perform Guix builds

Checkout the Bitcoin Core version you'd like to build:

pushd ./bitcoin
SIGNER='(your builder key, ie bluematt, sipa, etc)'
VERSION='(new version without v-prefix, e.g. 0.20.0)'
git fetch "v${VERSION}"
git checkout "v${VERSION}"
popd

Ensure your guix.sigs are up-to-date if you wish to guix-verify your builds against other guix-attest signatures.

git -C ./guix.sigs pull

Create the macOS SDK tarball: (first time, or when SDK version changes)

Create the macOS SDK tarball, see the macdeploy instructions for details.

Build and attest to build outputs:

Follow the relevant Guix README.md sections:

Verify other builders' signatures to your own. (Optional)

Add other builders keys to your gpg keyring, and/or refresh keys: See ../bitcoin/contrib/builder-keys/README.md.

Follow the relevant Guix README.md sections:

Next steps:

Commit your signature to guix.sigs:

pushd ./guix.sigs
git add "${VERSION}/${SIGNER}"/noncodesigned.SHA256SUMS{,.asc}
git commit -m "Add ${VERSION} unsigned sigs for ${SIGNER}"
git push  # Assuming you can push to the guix.sigs tree
popd

Codesigner only: Create Windows/macOS detached signatures:

  • Only one person handles codesigning. Everyone else should skip to the next step.
  • Only once the Windows/macOS builds each have 3 matching signatures may they be signed with their respective release keys.

Codesigner only: Sign the macOS binary:

transfer bitcoin-osx-unsigned.tar.gz to macOS for signing
tar xf bitcoin-osx-unsigned.tar.gz
./detached-sig-create.sh -s "Key ID"
Enter the keychain password and authorize the signature
Move signature-osx.tar.gz back to the guix-build host

Codesigner only: Sign the windows binaries:

tar xf bitcoin-win-unsigned.tar.gz
./detached-sig-create.sh -key /path/to/codesign.key
Enter the passphrase for the key when prompted
signature-win.tar.gz will be created

Code-signer only: It is advised to test that the code signature attaches properly prior to tagging by performing the guix-codesign step. However if this is done, once the release has been tagged in the bitcoin-detached-sigs repo, the guix-codesign step must be performed again in order for the guix attestation to be valid when compared against the attestations of non-codesigner builds.

Codesigner only: Commit the detached codesign payloads:

pushd ./bitcoin-detached-sigs
# checkout the appropriate branch for this release series
rm -rf ./*
tar xf signature-osx.tar.gz
tar xf signature-win.tar.gz
git add -A
git commit -m "point to ${VERSION}"
git tag -s "v${VERSION}" HEAD
git push the current branch and new tag
popd

Non-codesigners: wait for Windows/macOS detached signatures:

  • Once the Windows/macOS builds each have 3 matching signatures, they will be signed with their respective release keys.
  • Detached signatures will then be committed to the bitcoin-detached-sigs repository, which can be combined with the unsigned apps to create signed binaries.

Create (and optionally verify) the codesigned outputs:

Commit your signature for the signed macOS/Windows binaries:

pushd ./guix.sigs
git add "${VERSION}/${SIGNER}"/all.SHA256SUMS{,.asc}
git commit -m "Add ${SIGNER} ${VERSION} signed binaries signatures"
git push  # Assuming you can push to the guix.sigs tree
popd

After 3 or more people have guix-built and their results match:

Combine the all.SHA256SUMS.asc file from all signers into SHA256SUMS.asc:

cat "$VERSION"/*/all.SHA256SUMS.asc > SHA256SUMS.asc

  • Upload to the bitcoincore.org server (/var/www/bin/bitcoin-core-${VERSION}/):

    1. The contents of each ./bitcoin/guix-build-${VERSION}/output/${HOST}/ directory, except for *-debug* files.

      Guix will output all of the results into host subdirectories, but the SHA256SUMS file does not include these subdirectories. In order for downloads via torrent to verify without directory structure modification, all of the uploaded files need to be in the same directory as the SHA256SUMS file.

      The *-debug* files generated by the guix build contain debug symbols for troubleshooting by developers. It is assumed that anyone that is interested in debugging can run guix to generate the files for themselves. To avoid end-user confusion about which file to pick, as well as save storage space do not upload these to the bitcoincore.org server, nor put them in the torrent.

      find guix-build-${VERSION}/output/ -maxdepth 2 -type f -not -name "SHA256SUMS.part" -and -not -name "*debug*" -exec scp {} user@bitcoincore.org:/var/www/bin/bitcoin-core-${VERSION} \;

    2. The SHA256SUMS file

    3. The SHA256SUMS.asc combined signature file you just created

  • Create a torrent of the /var/www/bin/bitcoin-core-${VERSION} directory such that at the top level there is only one file: the bitcoin-core-${VERSION} directory containing everything else. Name the torrent bitcoin-${VERSION}.torrent (note that there is no -core- in this name).

    Optionally help seed this torrent. To get the magnet: URI use:

    transmission-show -m <torrent file>

    Insert the magnet URI into the announcement sent to mailing lists. This permits people without access to bitcoincore.org to download the binary distribution. Also put it into the optional_magnetlink: slot in the YAML file for bitcoincore.org.

  • Update other repositories and websites for new version

  • Announce the release:

Additional information

How to calculate m_assumed_blockchain_size and m_assumed_chain_state_size

Both variables are used as a guideline for how much space the user needs on their drive in total, not just strictly for the blockchain. Note that all values should be taken from a fully synced node and have an overhead of 5-10% added on top of its base value.

To calculate m_assumed_blockchain_size:

  • For mainnet -> Take the size of the data directory, excluding /regtest and /testnet3 directories.
  • For testnet -> Take the size of the /testnet3 directory.

To calculate m_assumed_chain_state_size:

  • For mainnet -> Take the size of the /chainstate directory.
  • For testnet -> Take the size of the /testnet3/chainstate directory.

Notes:

  • When taking the size for m_assumed_blockchain_size, there's no need to exclude the /chainstate directory since it's a guideline value and an overhead will be added anyway.
  • The expected overhead for growth may change over time, so it may not be the same value as last release; pay attention to that when changing the variables.