v0.39.0

What's Changed

• docs: change docs about vectors by @iqdecay in #895
• feat: support Bytes type return from contract by @iqdecay in #868
• feat!: enable payments with predicates by @Salka1988 in #815
• ci: add clippy check without all features by @hal3e in #900
• chore: reorganize harness tests by @hal3e in #897
• refactor!: improve log decoding and simplify ParamType by @segfault-magnet in #885
• Delete provider from with with_account function by @Salka1988 in #906
• refactor!: fuels wasm-offending packages/reexports hidden behind std flag by @segfault-magnet in #913
• bug: storage slots have to be sorted in a create tx by @segfault-magnet in #911
• chore: remove unused file cargo by @hal3e in #917
• Bump versions to 0.39.0 by @digorithm in #920

Full Changelog: v0.38.1...v0.39.0

New features

Bytes types

The Sway Bytes type is now supported in the SDK.

Pay for fees using predicate

We've recently introduced the Account trait, which encapsulates all the behavior you commonly see in a wallet. Predicates also implement the Account trait now. This means you can use a Predicate the same way you'd use a wallet, when paying for transaction fees. For instance:

// Instead of passing the wallet used to sign the contract's transaction, we can now pass a predicate
let contract_methods = MyContract::new(contract_id, predicate).methods();
let tx_params = TxParameters::new(1000000, 10000, 0);

assert_eq!(predicate.get_asset_balance(&BASE_ASSET_ID).await?, 192);

let response = contract_methods
    .initialize_counter(42) // Build the ABI call
    .tx_params(tx_params)
    .call()
    .await?;

Note that this new feature introduces many breaking changes. Read more here: #815.