--- sidebar_position: 1 --- # Versioning policy Modular Avatar subscribes to [Semantic Versioning](https://semver.org/). This means that: * When incompatible changes are made, the first component of the version number will change (e.g. 1.0.0 -> 2.0.0). * When new features are added in a backwards compatible way, the second component of the version number will change (e.g. 1.0.0 -> 1.1.0). Prefabs made with e.g. 1.1.0 may not work on 1.0.0, but prefabs made with 1.0.0 will work with 1.1.0. * When minor bugfixes and other changes that don't affect save format are made, the third component will change (1.0.0 -> 1.0.1). Unless the bug fix affects your prefab, generally using an older patch version should not be a large issue. In general, using the latest version of modular avatar under the same major version (1.x.x) is recommended. ## Internals and pass references All `internal` class names and method names are not considered stable APIs and are subject to change at any time, including patch releases (1.0.0 -> 1.0.1). In particular, the "qualified name" of NDMF passes is also not considered API stable, nor is the order in which Modular Avatar passes will run. The "Qualified Name" of the plugin itself, `nadena.dev.modular-avatar`, is however considered stable and will not change. If you have a use case for depending on specific Modular Avatar passes, please file a feature request with details of your use case on the github, and I'll consider adding a stable API for adding those pass dependencies.