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Merge pull request #185 from ethereum/docs-versioning 

docs: Extend versioning description
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Paweł Bylica 2019-01-21 12:08:55 +01:00 committed by GitHub
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@ -15,10 +15,20 @@ to access Ethereum environment and state.
# Versioning {#versioning}
The EVMC project uses [Semantic Versioning](https://semver.org).
Moreover, the _MAJOR_ version number is also referenced as the EVMC ABI version.
The version format is `MAJOR.MINOR.PATCH`.
The _MAJOR_ version number is also referenced as the **EVMC ABI version**.
This ABI version is available to VM and Host implementations by ::EVMC_ABI_VERSION.
For example EVMC 3.2.1 would have ABI version 3 and therefore this project release
can be referenced as EVMC ABIv3 or just EVMC 3.
Every C ABI breaking change requires increasing the _MAJOR_ version number.
The releases with _MINOR_ version change allow adding new API features
and modifying the language bindings API.
Backward incompatible API changes are allowed but should be avoided if possible.
The releases with _PATCH_ should only include bug fixes. Exceptionally,
API changes are allowed when required to fix a broken feature.
# Modules {#modules}