Release

Overview

Test the revision to be released
Prepare RC and vote (detailed later)
Publish (detailed later)
Announce the new release on the mailing list (detailed later)
Announce the new release on social media (detailed later)

Prepare release environment

This step is needed only when you act as a release manager the first time.

We use the following variables in multiple steps:

GH_TOKEN: GitHub personal access token to automate GitHub related operations
GPG_KEY_ID: PGP key ID that is used for signing official artifacts by GnuPG

We use dev/release/.env to share these variables in multiple steps. You can use dev/release/.env.example as a template:

$ cp dev/release/.env{.example,}
$ chmod go-r dev/release/.env
$ editor dev/release/.env

See https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens how to prepare GitHub personal access token for GH_TOKEN.

Note that you also need to install gh command because our scripts use gh command to use GitHub API. See https://github.com/cli/cli#installation how to install gh command.

If you don't have a PGP key for GPG_KEY_ID, see https://infra.apache.org/release-signing.html#genegrate how to generate your PGP key.

Your PGP key must be registered to the followings:

See the header comment of them how to add a PGP key.

Apache arrow committers can update them by Subversion client with their ASF account. e.g.:

$ svn co https://dist.apache.org/repos/dist/dev/arrow
$ cd arrow
$ head KEYS
(This shows how to update KEYS)
$ svn ci KEYS

Prepare RC and vote

You can use dev/release/release_rc.sh.

Requirements to run release_rc.sh:

You must be an Apache Arrow committer or PMC member
You must prepare your PGP key for signing

Run dev/release/release_rc.sh on a working copy of git@github.com:apache/arrow-swift not your fork:

$ git clone git@github.com:apache/arrow-swift.git
$ cd arrow-swift
$ dev/release/release_rc.sh ${VERSION} ${RC}
(Send a vote email to dev@arrow.apache.org.
 You can use a draft shown by release_rc.sh for the email.)

Here is an example to release 21.0.0 RC0:

$ dev/release/release_rc.sh 21.0.0 0

The arguments of release_rc.sh are the version and the RC number. If RC0 has a problem, we'll increment the RC number such as RC1, RC2 and so on.

Publish

We need to do the followings to publish a new release:

Publish the source archive to apache.org

Run dev/release/release.sh on a working copy of git@github.com:apache/arrow-swift not your fork to publish the source archive to apache.org:

$ dev/release/release.sh ${VERSION} ${RC}

Here is an example to release 21.0.0 RC0:

$ dev/release/release.sh 21.0.0 0

Add the release to ASF's report database via Apache Committee Report Helper.

Announce the new release on the mailing list

Send an email to “announce@apache.org” from your Apache email, CC'ing dev@arrow.apache.org /user@arrow.apache.org. See an example post.

To: announce@apache.org
CC: dev@arrow.apache.org, user@arrow.apache.org
Subject: [ANNOUNCE] Apache Arrow Swift 21.0.0 released

The Apache Arrow community is pleased to announce the Arrow Swift 21.0.0
release.

The release is available now.

Source archive:
  https://www.apache.org/dyn/closer.lua/arrow/apache-arrow-swift-21.0.0/

On Swift Package Index:
  https://swiftpackageindex.com/apache/arrow

Read the full changelog:
  https://github.com/apache/arrow-swift/releases/tag/v21.0.0

What is Apache Arrow?
---------------------

Apache Arrow is a universal columnar format and multi-language toolbox
for fast data interchange and in-memory analytics. It houses a set of
canonical in-memory representations of flat and hierarchical data
along with multiple language-bindings for structure manipulation. It
also provides low-overhead streaming and batch messaging, zero-copy
interprocess communication (IPC), and vectorized in-memory analytics
libraries.

Please report any feedback to the GitHub repository:
  https://github.com/apache/arrow-swift/issues
  https://github.com/apache/arrow-swift/discussions

Regards,
The Apache Arrow community.

Announce the new release on social media

Make a post on our BlueSky and LinkedIn accounts. (Ask your fellow PMC members for access if need be, or ask a PMC member to make the post on your behalf.) The post should link to the blog post. See example BlueSky post and example LinkedIn post.

Verify

We have a script to verify a RC.

You must install the following commands to use the script:

curl
go
gpg
shasum or sha256sum/sha512sum
swift 5.10 or later
tar

To verify a RC, run the following command line:

$ dev/release/verify_rc.sh ${VERSION} ${RC}

Here is an example to verify the release 21.0.0 RC0:

$ dev/release/verify_rc.sh 21.0.0 0

If the verification is successful, the message RC looks good! is shown.