Latest API Releases

SpaceCraft SDK v0.60.0 is live.
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SpaceCraft v0.60.0 makes all the new Barnard functionality available by default for all Smart Contracts.
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For questions or help, reach us on Telegram or Discord channels. 

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SpaceCraft SDK v0.59.1 is live.
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SpaceCraft v0.59.1 adds fixes to the governance system smart contract interaction, as well as bringing some fixes to the SDK.
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For questions or help, reach us on Telegram or Discord channels. 

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SpaceCraft SDK v0.59.0 is live.
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This release brings full support for the Barnard protocol upgrade, introducing expanded APIs, fallible transaction mechanisms, and improved contract tooling for MultiversX smart contract development.

It’s a major step forward for developers building advanced logic, tools, and governance flows on MultiversX.

For questions or help, reach us on Telegram or Discord channels. 

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This release unlocks native execution of smart contracts in blackbox tests for the first time. That means you can now test your code against real contracts, even without their source, and simulate realistic, multi-contract behavior. 

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It also adds Rust 1.87 support, experimental gas metering, Wasmer 6 support, and a streamlined build system.

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For questions or help, reach us on Telegram or Discord channels. 

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• Replicated VM 1.5 in the Rust VM. This includes support for:
• promises,
• back-transfers,
• modified event logs.
• New endpoint annotation, `#[upgrade]`. Contract variants with upgrade endpoint, but without init now allowed.
• Build system:
• `wasm` crates now fully generated based on data from `sc-config.toml` and root `Cargo.toml`.
• Setting wasm target dir automatically, if not specified, based on workspace.
• Better hygiene in codec derive.

• Back-transfer:
• API support in framework (not yet implemented in the Rust VM);
• Feature flag: `"back-transfers"`;
• EI updated.
• ESDT attribute ABI annotation and generator.
• Multiple var-args disallowed, unless annotating endpoint with `#[allow_multiple_var_args]`.
• Build system updates:
• `multicontract.toml` renamed to `sc-config.toml`;
• `add-unlabelled` default true.
• New `FunctionCall` object & refactoring. Can be used as multi-value to pass contract call info to contracts.
• `AddressToId` storage mapper.