elrond-wasm 0.38.0, elrond-codec 0.16.0, mandos 0.18.0

• ContractCall refactor. Building a contract call comes with harder compile-time constraints. This also reduces compiled code size.
• ContractBase supertrait can be now stated explicitly for contract and module traits.
• Debugger:
  • Callback payment is now set correctly.
  • Function names are represented internally as strings instead of bytes, which aids debugging.
• Removed the ei-1-2 feature, which was guarding the newer VM functions. These functions are in the mainnet, so this feature is no longer needed.
• New utility functions: self.send().esdt_local_burn_multi(..., self.blockchain().get_token_attributes(...).
• Updated all crates to Rust 2021.

elrond-wasm 0.37.0, elrond-codec 0.15.0

• Multi-contract build system:
  • build system refactor;
  • multicontract.toml config system with labels,
  • eliminated monomorphization issue that was bloating some contracts;
  • build post-processing: wasm2wat, imports via wasm-objdump.
• Support for the new async call system (promises):
  • new APIs;
  • a new flavor of callbacks (#[promises-callback]);
  • callback optimizations.
• elrond-codec refactor: removed TopEncodeNoErr, NestedEncodeNoErr and TypeInfo
• System SC proxy: added support for controlChanges endpoint and transfer create role (from community).
• Module updates:
  • MergedTokenInstances module;
  • Governance module improvements;
  • set_if_empty for FungibleTokenMapper and NonFungibleTokenMapper.
• IntoMultiValue trait.
• Storage mapper improvements:
  • Storage mappers can read from another contract.
  • BiDiMapper improvements;
  • Fixed missing substitution rules for FungibleTokenMapper, NonFungibleTokenMapper, UniqueIdMapper, BiDiMapper, WhitelistMapper, RandomnessSource;
  • Added take and replace methods for SingleValueMapper;
  • Implemented Extend trait for UnorderedSetMapper.

elrond-wasm 0.36.1

• Deprecated ContractCall execute_on_dest_context_ignore_result method, since it is currently redundant.

elrond-wasm 0.36.0, elrond-codec 0.14.0

• EsdtTokenPayment legacy decode: objects encoded by older versions of the framework can now also be decoded, if flag esdt-token-payment-legacy-decode is active.
• Codec NestedDecodeInput new peek_into method.
• FungibleTokenMapper caches the token identifier.

elrond-wasm 0.35.0, elrond-codec 0.13.0, mandos 0.17.0

• Rust interactor snippet generator.
• Added some missing substitution rules in the contract preprocessor.
• Allow single zero byte when top-decoding Option::None.
• Ongoing operations module.
• Claim developer rewards module.
• FromIterator trait for ManagedVec.
• Mandos "id" accepted as synonym to "txId".

elrond-wasm 0.34.1

• #[only_admin] annotation
• Safer BigUint/BigInt conversions
• Added and published price-aggregator and wegld-swap core contracts.

elrond-wasm 0.34.0, elrond-codec 0.12.0, mandos 0.16.0, elrond-interact-snippets 0.1.0

• Major refactor of the mandos-rs infrastructure.
  • High-level Mandos objects moved to elrond-wasm-debug;
  • The mandos crate no longer depends on elrond-wasm-debug (as originally intended and implemented);
  • Typed mandos contract call objects, for better call syntax.
  • More syntactic sugar for writing mandos calls.
• The first version of elrond-interact-snippets, which can be used to write short blockchain interactor programs.
  • The syntax relies on contract proxies to easily build calls.
  • Some of the infrastructure is shared with Mandos.
  • There is an example of such a interactor for the multisig contract.
• Refactor of managed type handles in all API traits. Eliminated undefined behavior when using the same handle in multiple contexts.
• Transfer role proxy module.
• NFT merge module.
• #[only_user_account] annotation. Only user accounts can call these endpoints.
• ABI - fixed missing event logs from modules.

elrond-wasm 0.33.1, mandos 0.15.1

• CodecSelf for BigInt

elrond-wasm 0.33.0, mandos 0.15.0

• Removed the data field for direct EGLD & ESDT transfers.
• Testing and debugging environment aligned with VM version 1.4.53.
• Call value and token data infrastructure additional cleanup.

elrond-wasm 0.32.0, mandos 0.14.0

• VM new functionality added as part of the environment interface 1.2:
  • Fully managed functionality for elliptic curves (no allocator);
  • Fully managed cryptographic functions (no allocator);
  • More efficient printing of big ints and hex;
  • Functionality available by adding the ei-1-2 flag to contracts.
• BigFloat functionality. Since the functionality is not yet deployed on mainnet, use flag big-float to use.
• Major refactoring of the call value mechanism:
  • TokenIdentifier now only refers to ESDT, for mixed EGLD+ESDT we have EgldOrEsdtTokenIdentifier.
  • EsdtTokenPayment now only refers to ESDT, for mixed EGLD+ESDT we have EgldOrEsdtTokenPayment.
  • Compact version for multi-transfer: let [payment_a, payment_b, payment_c] = self.call_value().multi_esdt();.
  • Explicit single_esdt vs. single_fungible_esdt vs. egld_or_single_esdt vs. egld_or_single_fungible_esdt.
  • Payment arguments are still supported, although discouraged. They always assume the EGLD+ESDT scenario.
• ManagedOption provides some minor optimization for specific use-cases. Mostly for use in the framework.
• Cleanup in the callback mechanism and in the SendApi.
• SparseArray implementation.
• UniqueIdMapper - efficient storage mapper for holding unique values.
• The ABI also contains events.
• New standard module: StakingModule.