sc 0.66.0, chain 0.23.0, sdk 0.16.0, scenario-format 0.26.1

• Memory and thread safety:
  • Managed type memory management: proper Drop implementations for managed types:
    • ManagedBuffer, BigInt, BigFloat, ManagedVec, and ManagedMap now call their VM-side destructor when dropped;
    • Fixed memory leaks and double-drop issues previously present in ManagedVec and ManagedBuffer;
    • ManagedVecItem derive macro now generates requires_drop correctly;
    • ManagedVec slice out-of-bounds fix;
    • MultiValueEncoded::to_arg_buffer fix;
    • Memory benchmarks added for managed types.
  • Thread safety:
    • DebugHandle and StaticApiHandle are now explicitly !Send;
    • All managed types implement !Send + !Sync, with tests.
• Mathematical library additions:
  • nth_root for BigUint;
  • linear_interpolation and weighted_average functions;
  • ManagedDecimal improvements:
    • exp_approx: exponential approximation function;
    • compounded_interest and compounded_interest_factor methods;
    • mul / div with half-up rounding mode;
    • Fixed into_raw_units / as_raw_units conversion;
    • nth_root support;
    • Backwards-compatibility fixes.
  • SaturatingSub / SaturatingSubAssign for BigUint.
  • BigUint::from_str (implements FromStr / parse());
• sc-meta new features, updates and fixes:
  • sc-meta transaction CLI (sc-meta tx): a new command-line tool for composing and broadcasting transactions directly from the terminal:
    • sc-meta tx deploy - deploy a contract;
    • sc-meta tx call - call a contract endpoint;
    • sc-meta tx query - query a contract (no gas);
    • sc-meta tx sign - sign a transaction offline;
    • sc-meta tx upgrade - upgrade a deployed contract;
    • --payments / --token-transfers flags for specifying ESDT payments;
    • --wait-result flag (requires --send);
    • --code-metadata args refactor.
  • sc-meta reproducible-build - new tooling for building and verifying contracts reproducibly:
    • Docker-based local build;
    • sc-meta all download with --overwrite flag;
    • sc-meta all publish / unpublish with polling and max-attempt logic;
    • Source pack/unpack (zip) with test & refactor;
    • artifacts.json generation and code hash verification;
    • repro-build init-config for project configuration toml;
    • repro-build release-notes CLI;
    • Integration test and CI support.
  • sc-meta data CLI: new subcommand for managing contract data/storage, for scripts.
  • Wallet improvements:
    • sc-meta wallet new hides password from console (uses rpassword);
    • sc-meta wallet test-wallet CLI command.
  • Other improvements:
    • sc-meta new --force flag: overwrite an existing template directory;
    • sc-meta new --overwrite bugfix;
    • sc-meta install wasm32 --toolchain <toolchain> CLI flag;
    • sc-meta install debugger on Windows, duplicate-protection, configures rust-analyzer.debug.engine;
    • sc-meta install all Windows fix;
    • sc-meta all codehash with fallback;
    • Detect duplicate contract names;
    • sc-meta rust version displayed in full;
    • CARGO_NET_GIT_FETCH_WITH_CLI env flag propagated through contract builds.
• Explorer URLs are displayed after transactions and for new contracts in interactor and sc-meta tx CLI.
• Rust VM gas schedule updates:
  • Gas schedule v9+ updates;
  • Fixed gas accounting for conversions, more hooks, and ManagedMap operations;
  • Overflow check added in multiply-gas helper;
  • wasmer-prod: fix for missing breakpoint after early exit / out-of-gas.
• Chain core additions:
  • Standard code hash function added to multiversx-chain-core;
  • VM code hash hook;
  • Basic crypto functions consolidated in chain core;
  • Deploy address computation impls centralized.
  • Bech32Address improvements:
    • try_from_bech32_string constructor with explicit error;
    • FromStr implementation;
    • Better error on empty string input.
• SDK improvements:
  • Interactor gas price support;
  • Refactoring: REST API types and naming updated to match the Go SDK implementation;
  • Wallet::from_pem_file accepts any AsRef<Path>;
  • Wallet methods now take AsRef<Path> generically.
• ManagedByteArray now implements SCDisplay and SCBinary.
• Dependency upgrades.

sc 0.65.1, chain 0.22.1, sdk 0.15.1

• sc-meta improvements:
  • sc-meta wallet new --shard <id> flag: generates a new wallet whose address belongs to the given shard;
  • sc-meta all proxy
    • Better crate path handling;
    • --verbose flag: prints each proxy file path as it is generated.
  • sc-meta test-gen generates .insert_ghost_accounts() call in test setup (only used in internal tests).
• SDK:
  • Accept trailing slash in gateway URL (automatically normalized);
  • Fixed a transaction decode issue in sdk/core;
  • Test wallets provided for each shard, including a function that returns the wallet for that ShardId.
• Chain core: new ShardId type and ShardConfig infrastructure:
  • ShardId represents a shard identifier, with special values for metachain;
  • ShardConfig encodes the shard structure of the network (number of shards, address distribution);
  • Functionality to get the shard of an Address;
  • Utility for checking whether an address is of a system SC.
• Base framework improvements:
  • ManagedArgBuffer implements ManagedVecItem.
  • Display trait implemented by BigInt, BigUint, NonZeroBigUint, Payment and EsdtTokenPayment.

sc 0.65.0, codec 0.25.0, chain 0.22.0, sdk 0.15.0, scenario-format 0.26.0

• VM:
  • DebugHandle now uses a Weak pointer to TxContext, fixing LLDB inspection;
  • Signal error UTF-8 fix;
  • VMAddress alias removed;
  • Removed deprecated Shareable / with_shared_mut_ref infrastructure.
• sc-meta new scen-blackbox tool that reads scenario JSON files (mandos) and generates Rust blackbox tests
  • Generates strongly-typed Rust blackbox test code from mandos .scen.json files;
  • Supports payments, variadic arguments, block info, token IDs, addresses, H256 constants, timestamps/durations,
• ABI:
  • rustMethodName field added to the JSON ABI, where it differs from the endpoint name;
  • specificType field, used for TimestampSeconds, TimestampMillis, DurationSeconds, DurationMillis.
  • PaymentMultiValue ABI fix.
• TypeAbi changes:
  • Added TypeAbiUniversalInput, to allow developers to bypass proxy argument type restrictions;
  • IgnoreValue blanket TypeAbiFrom impl removed; since it was conflicting with TypeAbiUniversalInput;
  • Added ScenarioValueRaw, an alias for TypeAbiUniversalInput<BytesValue>, used by the sc-meta scen-blackbox tool as a placeholder, for when it cannot determine an appropriate typed value.
• Testing improvements:
  • Support for transaction ids in tests;
  • Address and H256 const constructors from hex;
  • Payment API additions and improvements:
    • .payment() calls can be chained, and arguments are automatically merged into a multi-payment, at compile time;
      • Deprecated .esdt() and .multi_esdt(), since they are now superseded by .payment()
    • Utility methods for dealing with NonZeroBigUint:
      • Payment::try_new with generic error type;
      • NonZeroBigUint::try_from for u8, u16, u32, u64, usize, and NonZero<_>;
      • cmp/eq between NonZeroBigUint and BigUint;
      • NonZeroBigUint::one();
    • TestTokenIdentifier renamed to TestTokenId (old name kept as deprecated alias);
    • MultiEgldOrEsdtPayment to PaymentVec conversion check;
    • Other deprecations:
      • MultiEsdtPayment (superseded by PaymentVec);
      • TestEsdtTransfer, Payment is now used instead;
      • .commit() in blackbox set/check account (no longer needed);
    • Scenario payments use PaymentVec internally instead of MultiEgldOrEsdtPayment.
• Codec fixes and improvements:
  • bool encode/decode correctness fix;
  • num-bigint encoding fix;
  • MultiValueVec new constructors and unit tests;
  • Inline annotations adjusted for better performance and consistency.
• Dependency upgrades:
  • Upgraded reqwest, switched TLS backend to rustls;
  • Dependencies upgraded to the latest versions.
• LLDB pretty-printer fix.

sc 0.64.2, chain 0.21.2, sdk 0.14.2

• Workaround for mBufferFromBigIntSigned VM hook bug:
  • The hook was incorrectly converting negative numbers to their absolute value;
  • The mBufferToBigIntSigned VM hook has been added to the deprecated hooks list;
  • Fixed a related bug in the Rust VM, also pertaining to negative numbers, in mb_to_small_int_signed(mBufferFromSmallIntSigned).
• VM: added ESDT metadata recreate and metadata update mock built-in functions.
• Upgraded multiversx-chain-vm-executor to v0.5.1.
  • Contains upgrade to Wasmer 6.1.0 (wasmer-experimental);
  • This fixes and issue with wasmer-prod and wasmer-experimental builds on Linux for certain versions of Rust.
• Big number improvements:
  • BigInt/BigUint proportion and into_proportion methods, for computing self * part / total efficiently, with overflow checks.
  • BigUint::into_non_zero_or_panic method.
  • BigUint::new_unchecked unsafe constructor from BigInt.
  • BigInt::overwrite_i64 now takes &mut self instead of &self.
• New FungiblePayment type, representing a payment with a TokenId and a NonZeroBigUint amount (no nonce). Includes ManagedVecItem, TypeAbi, and codec implementations.
• sc-meta improvements:
  • Added --locked CLI flag support;
  • Build error messages now include the full command that was executed.
• Storage mapper documentation improvements across all mappers.
• Derive substitution list fix: Ref and ManagedVecRef no longer incorrectly listed as having an API generic.

sc 0.64.1, chain 0.21.1, sdk 0.14.1

• TokenId backwards compatibility conversions:
  • Converting empty token identifiers, as well as EGLD to EGLD-000000;
  • Converting not only upon decode, but also in constructors and conversions (from);
  • Added an unsafe unchecked constructor;
  • The same conversions apply to EgldOrEsdtTokenIdentifier.
• Debugger fixes:
  • Fixed error messages when using the StaticApi. Following changes to the VM a few releases ago, the error messages were being swallowed by the API.
  • Fixed a crash caused by the error trace in the StaticApi.

sc 0.64.0, codec 0.24.0, chain 0.21.0, sdk 0.14.0, scenario-format 0.25.0

• Switched to Rust edition 2024, minimum compiler version becomes 1.85.
• New payments API:
  • New objects: TokenId and Payment. Besides them having shorter names, they treat EGLD the same as all other ESDTs, making their handling easier. EGLD is always serialized as EGLD-000000.
  • Payment amounts are NonZeroBigUint, a new refinement type that prevents the value from being zero. This prevents at compile time zero-value payments from occurring.
  • New call_value methods:
    • all() - all payments, EGLD and ESDT;
    • single() - expect precisely one payment, and retrieve that payment. Crash for no payments, or for multiple payments;
    • single_optional() - expect either zero or one payments. Returns an Option of Payment reference;
    • array() - expect the exact number of payments and retrieve them as array.
  • MultiTransfer marker for forcing an ESDT multi transfer, even when not strictly necessary.
  • Deprecated EgldOrMultiEsdtPayment and call_value``any_payment.
  • ManagedVecRef renamed to Ref.
  • Token identifier display fix.
• NonZeroBigUint implementation, including all common operators. Additional fixes for the BigInt and BigUint operators.
• SDK - fixed an issue with parsing transactions with large values in SCRs.
• Upgraded all dependencies.

sc 0.63.3

• Reverted the EsdtTokenIdentifier ABI name to TokenIdentifier.

sc 0.63.2

• Legacy whitebox test block timestamp APIs renamed and made type-safe.

sc 0.63.1

• Blockchain API renames: epoch_start_block_* -> get_epoch_start_block_*, for consistency.
• Set block timestamp methods renamed to block_timestamp_seconds and block_timestamp_millis, respectively, also for consistency.

sc 0.63.0, chain 0.20.0, sdk 0.13.0, scenario-format 0.24.0

• New block info API, which returns timestamps as either TimestampSeconds or TimestampMillis, instead of just u64:
  • New types for measuring time, not only timestamps, but also durations (DurationSeconds and DurationMillis);
  • Previous functions deprecated in favor of the new ones as follows:
    • get_block_timestamp -> get_block_timestamp_seconds
    • get_block_timestamp_ms -> get_block_timestamp_millis
    • same for previous block and epoch start block
    • get_block_round_time_ms -> get_block_round_time_millis;
  • Support for TimestampSeconds and TimestampMillis when setting up blackbox tests;
  • Mandos support for millisecond timestamps, in both mandos-go and mandos-rs.
• Rust VM support for fallible sync calls. Adjusted event logs to match the Go VM.
• Contract build improvements:
  • The Rust version is now sent to the wasm build command via CLI, always. This overrides all other settings, giving the framework full control over the Rust version used.
  • The Rust version can be configured in sc-config.toml. This overrides all other settings. If missing, the current config will be detected and used explicitly.
  • The wasm-opt version can be specified in sc-config.toml. While sc-meta cannot install or change this version, it will crash if there is a version mismatch, signalling problems with reproducible builds.
  • The sc-meta standalone tool signals version incompatibilities when building contracts. Most importantly it writes a warning to console if multiversx-sc version < v0.58 and rustc ≥ v1.87.
  • Added a deprecated VM hooks checker mechanism. Currently only checks for legacy call value getters.
  • ABI build info improvements:
    • Added host;
    • Added LLVM version;
    • Rustc version guaranteed to match the one used for building the wasm binary;
    • Ensured historical backwards compatibility, back to the first version of the ABI format.
• TokenIdentifier renamed to EsdtTokenIdentifier, since the old name was misleading. Old name kept as alias, for backwards compatibility.
• Fixed proxy imports in snippets.