Second, the release reduces . A common complaint about older Meteor versions was the inability to use modern npm packages that required native async/await or ESM. With 1.21.1, developers can confidently install packages like axios v1.x, got , or mongodb native drivers without encountering obscure build errors. This bridges the gap between Meteor’s proprietary build system and the wider JavaScript ecosystem.
Meteor.methods({ async 'data.fetch'() { const result = await ExternalAPI.call(); return result; } }); without worrying about Fibers compatibility. The release includes improved error handling for asynchronous methods and better stack traces. meteor 1.21.1
Third, it introduces . While Meteor has long supported import / export , earlier versions had quirks with package.json "type": "module" and certain npm packages that rely on ESM-only exports. Meteor 1.21.1 improves the module resolution algorithm, reducing the need for workarounds like dynamic import() or bundler hacks. Second, the release reduces