OpenWork v0.18.20

What's new

OpenWork v0.18.20 desktop release.

• Public artifacts use the openwork-* naming convention.
• Cloud artifacts use openwork-cloud-* and require sign-in without enterprise activation.
• Enterprise artifacts use openwork-enterprise-* while retaining the standard OpenWork app identity.
• Public, Cloud, and enterprise Electron builds use separate updater manifests on this release.

Windows installer is temporarily unsigned while production code signing is being finalized.