Latest Protocol Releases

• 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.

The v1.3.0 release of the mx-api-service by MultiversX brings a comprehensive set of new features, bug fixes, and other notable changes aimed at enhancing the functionality, reliability, and performance of the service. Some of the most important features are:

• Node sync progress percentage.
• Apply price & marketCap for Hatom tokens.
• Sovereign shards support as seen at xDay 2023.

Send us feedback and let’s get in touch if you have any improvement ideas. Become a builder!

Calling all Validators!

We're rolling out a new upgrade for your nodes! This release introduces:

• An important fix for nodes starting an epoch in a new shard without recent DB info. This is necessary for shuffled-out validator nodes.

This enhancement ensures smooth state synchronization, even when a setGuardian transaction occurs at the epoch change. As always, ensure you're using the right Go compiler version (v1.20.7). Happy upgrading, and don't forget to join our Discord community for discussions, support, and sharing innovative ideas.

Calling all Validators!

It's time for an upgrade of your nodes! This release brings:

• a minor refactoring around an invariant check;

Remember, the minimum required Go compiler version for compilation is now v1.20.7 keeping us in sync with the latest libp2p library changes. Happy upgrading, and join us on Discord where you can connect with fellow builders and developers, share your feedback, ask for details, contribute with constructive ideas.

• 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.

Hello xWorld!

• Fixed a rustc compatibility issue when building contracts. The meta crate looks at the rustc version when generating the wasm crate code.
• Initial version of the contract template tool in multiversx-sc-meta.
• The Rust debugger is now thread safe.
• Removed the `big-float` feature of multiversx-sc, because the functionality is already available on mainnet.
• CLI fixes in multiversx-sc-meta: arguments `--target-dir-wasm`, `--target-dir-meta`, and `--target-dir-all` in the `multiversx-sc-meta`
• Fixed an issue with contract calls and ESDT transfers in the `StaticApi` environment.

And many many other goodies. Check the detailed description of this release and join us on Discord, where you can connect with fellow builders and developers, share your feedback, ask for details, contribute with constructive ideas. And starting last week we have the monthly live dev sessions where you can meet us and discuss in detail every characteristic and detail.