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Node.js 22 or later

The TypeScript SDK packages now require Node.js 22 or later. Node 18 and 20 are end of life and don’t get security fixes, including the October 21, 2026 Node.js security release.
  • engines.node is >=22 in @solvapay/server 2.11.0, @solvapay/mcp 0.5.0, @solvapay/mcp-core 0.5.0, @solvapay/next 1.4.0, @solvapay/auth 1.2.0, @solvapay/init 0.5.0, solvapay 1.4.0 and create-solvapay 0.8.0. These are minor releases with no API changes.
  • @solvapay/react 2.7.1 accepts @solvapay/mcp-core 0.5 as its optional peer.
  • The SDK is tested on Node 22, 24 and 26.
  • On Node 22, the bundled npm installs the MCP template from npm create solvapay@latest -- --type mcp. You no longer need to upgrade npm first, as you did on Node 20.
On an older Node, npm and pnpm warn about the engine mismatch, and Yarn 1 stops the install. Upgrade Node rather than ignoring the warning. See Installation and the TypeScript SDK quick start.