There are always breaking changes waiting to go in (https://github.com/nodejs/node/labels/semver-major https://github.com/nodejs/node/labels/semver-major). Ofte

There are always breaking changes waiting to go in (https://github.com/nodejs/node/labels/semver-major https://github.com/nodejs/node/labels/semver-major). Often they’re edge cases or native extension things though. Although the choice on when is arbitrary timing, the major bump does mean there are breaking changes. The nature of JS is that there are very few breaking changes allowed from an end-user perspective even between major versions.