# Serde version   [![Build Status]][travis] [![Latest Version]][crates.io]

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[travis]: https://travis-ci.org/fredpointzero/serde-version
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[crates.io]: https://crates.io/crates/serde-version
# Serde version
//!
Versioning support for serde.
//!
When software are developped and used at the same time the data formats may change
from one version to another and persisting data may be produced by a specific version
and loaded by another version.
//!
Serde version provide a versioning feature for serde for the main use cases.
//!
See the guide [here](https://fredpointzero.github.io/crates/serde-version/).
//!
Note 1: Requires the specialization feature.
Note 2: Use the `derive` feature to generate the `DeserializeVersioned` implementation
//!
## Goals of Serde version
//!
We aim at solving the case were a type or a set of types in a deserializer's
data needs to be upgraded to their latest format.
This is the case when a mandatory property was added or removed,
or an existing property changed.
//!
## Non goals
//!
This is based on types that can be upgraded individually.
Types that needs to be upgraded together is way more complex to handle
and usually relies on domain specific deserializer.
//!
So, these data format should be handle with specific `Deserialize` traits implementations.