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Releases and versioning

This document describes the current release and versioning strategy. This strategy is likely to change as Rerun matures.

See also

Release Cadence

New Rerun versions are released every two weeks. Sometimes we do out-of-schedule patch releases.

Library versioning and release cadence

Each release include new versions of:

  • The Python SDK
  • The Rust SDK
  • All rust crates

We use semantic versioning. All versions are increased in lockstep, with a minor version bump each time (0.1.0, 0.2.0, 0.3.0, …).

This means we might add breaking changes in each new release.

In rare cases we will do patch releases, e.g. 0.3.1, when there is a critical bug fix. These patch releases will not contain any breaking changes.

We sometimes do pre-releases. Then we use the versioning 0.2.0-alpha.0 etc.

Data and communication versioning

We have not yet committed to any backwards or forwards compatibility.

We tag all data files (.rrd files) and communication protocols with the rerun version number. If there is a version mismatch, a warning is logged, but an attempt is still made to load the older or newer data.

Releases

Release builds of the Python Wheels are triggered by pushing a release tag to GitHub in the form v0.2.0. If we are doing a patch release, we do a branch off of the latest release tag (e.g. v0.3.0) and cherry-pick any fixes we want into that branch.

Release checklist

Go through this checklist from top to bottom, and check each item before moving onto the next. This is a living document. Strive to improve it on each new release.

  • Create a release branch called release-0.x.y
  • If it is a patch release branch off latest and cherry-pick the commits that should be included
  • Update CHANGELOG.md with the new version number with:
    • A one-line summary of the release
    • A multi-line summary of the release
    • A gif showing a major new feature
    • Run pip install GitPython && scripts/generate_changelog.py
    • Edit PR descriptions/labels to improve the generated changelog
    • Copy-paste the results into CHANGELOG.md.
    • Editorialize the changelog if necessary
    •  Make sure the changelog includes instructions for handling any breaking changes
    • Commit and push the changelog
  • Create a draft PR containing:
    • One-line summary of the release
    • A multi-line summary of the release
    • A gif showing a major new feature
  • Test the branch (see below)
  • Open the PR up for review with the ⛴ release label
  • Bump version number in root Cargo.toml.
  • Check that CI is green
  • Publish the crates (see below)
  • git tag -a v0.x.y -m 'Release 0.x.y - summary'
    • git push --tags
    • This will trigger a PyPI release when pushed
  • git pull --tags && git tag -d latest && git tag -a latest -m 'Latest release' && git push --tags origin latest --force
  • Manually trigger a new web viewer build and upload at https://github.com/rerun-io/rerun/actions/workflows/rust.yml
  • Wait for CI to build release artifacts and publish them on GitHub and PyPI.
  • Merge PR
  • Edit the GitHub release at https://github.com/rerun-io/rerun/releases/edit/v0.x.0
    • Mark it as as the latest release
    • Paste in the CHANGELOG.md
  • Wait for wheel to appear on https://pypi.org/project/rerun-sdk/
  • Test the released Python and Rust libraries (see below)
  • Wait for documentation to build: https://docs.rs/releases/queue
  • Point https://app.rerun.io/ to the latest release via instructions in https://www.notion.so/rerunio/Ops-Notes-9232e436b80548a2b252c2312b4e4db6?pvs=4.
  • Post on:
    • Community Discord
    • Rerun Twitter
    • Reddit?

Testing a release

Before pushing the release tag:

  • just py-run-all
  • Test the web viewer:
    • cargo run -p rerun --features web_viewer -- --web-viewer ../nyud.rrd
    • Test on:
      • Chromium
      • Firefox
      • Mobile

After tagging and the CI has published:

  • Test the Python packages from PyPI: pip install rerun_sdk==0.x.0a1
  • Test rust install version: cargo install -f rerun@0.x.0-alpha.1 -F web_viewer && rerun --web-viewer api.rrd
  • Test rust crate: Modify Cargo.toml of any example to not point to the workspace
    • run with --serve to test web player

Checklist for testing alpha releases:

  • Windows
    • Python Wheel
      • Web
      • Native
    • Rust crate
      • Web
      • Native
    • Rust install
      • Web
      • Native
  • Linux
    • Python Wheel
      • Web
      • Native
    • Rust crate
      • Web
      • Native
    • Rust install
      • Web
      • Native
  • Mac
    • Python Wheel
      • Web
      • Native
    • Rust crate
      • Web
      • Native
    • Rust install
      • Web
      • Native

Publishing

First login as https://crates.io/users/rerunio with and API key you get from Emil:

cargo login $API_KEY

!! IMPORTANT !! Shut off VSCode, and don't touch anything while publish_crates.sh is running! !! IMPORTANT !! Read publish_crates.sh for details

./scripts/publish_crates.sh --execute