Relay 1.0

Two years after the first commit, Relay is 1.0. Thank you to the 4,000 teams who shipped on the betas and filed the issues that shaped this release.

What 1.0 means:

• Semver from here on. No breaking changes outside of major versions, and majors will ship with codemods where possible.
• A finished core. Routes, environments, secrets, logs, and deploys are stable APIs. Everything else builds on top of that core.
• A public roadmap. What we are building next is now public; the docs footer links to it.

#Breaking

• The legacy relay.config.js format is gone. Run relay migrate-config to convert to relay.toml automatically; the old file has been ignored with a warning since 0.8.0.
• RELAY_TOKEN was renamed to RELAY_API_KEY to match the dashboard terminology. The old name keeps working until 2.0 but logs a deprecation notice.

#Added

• Environments. First-class staging and production targets with per-environment secrets and instant promotion: relay promote staging.
• Audit log for every deploy, secret change, and member invite on team plans.