# azure_mgmt_billing crate > Microsoft is developing the official Azure SDK for Rust crates and has no plans to update this unofficial crate. > In the future we may release an official version that may have a different package name. > If releasing an official version of this crate is important to you [let us know](https://github.com/Azure/azure-sdk-for-rust/issues/new/choose). > > Source for this crate can now be found in . > To monitor for an official, supported version of this crate, see . This is an unofficial, unsupported generated [Azure SDK for Rust](https://github.com/Azure/azure-sdk-for-rust/tree/legacy) crate from the Azure REST API specifications listed in: https://github.com/Azure/azure-rest-api-specs/blob/main/specification/billing/resource-manager/readme.md To get started with these generated service crates, see the [examples](https://github.com/Azure/azure-sdk-for-rust/blob/legacy/services/README.md#examples). The default tag is `package-2024-04`. The following [tags](https://github.com/Azure/azure-sdk-for-rust/blob/legacy/services/tags.md) are available: - `package-2024-04` has 188 operations from 1 API versions: `2024-04-01`. Use crate feature `package-2024-04` to enable. The operations will be in the `package_2024_04` module. - `package-2021-10` has 20 operations from 1 API versions: `2021-10-01`. Use crate feature `package-2021-10` to enable. The operations will be in the `package_2021_10` module. - `package-2020-11-preview` has 79 operations from 2 API versions: `2020-05-01`, `2020-11-01-preview`. Use crate feature `package-2020-11-preview` to enable. The operations will be in the `package_2020_11_preview` module. - `package-2020-09-preview` has 79 operations from 2 API versions: `2020-05-01`, `2020-09-01-preview`. Use crate feature `package-2020-09-preview` to enable. The operations will be in the `package_2020_09_preview` module. - `package-2020-05` has 79 operations from 2 API versions: `2018-03-01-preview`, `2020-05-01`. Use crate feature `package-2020-05` to enable. The operations will be in the `package_2020_05` module.