Node 22 is the default runtime, Node 18 is deprecated
v2.9.0ImprovedDeprecated
New services start on Node 22. Node 18 builds stop on Dec 1, 2026.
New Node services now build on Node 22 LTS. Existing services keep their current version until you change it.
Timeline
- Now: Node 22 is the default; Node 18 shows a warning in build logs
- Dec 1, 2026: new builds on Node 18 are rejected
- Running services are never stopped
Pin a version in package.json:
json
{ "engines": { "node": "22.x" } }