v0.2.0 - 2025-06-20

ERC-1155 token (Erc1155, Burnable, MetadataUri, Supply, UriStorage).
ERC-4626 “Tokenized Vault Standard” and ERC-20 Flash Mint extension.
ERC-2981 on-chain royalties.
ERC-20 Utils: SafeErc20.
Finance: VestingWallet.
Ownership: Ownable2Step.
Token wrappers: Erc20Wrapper, Erc721Wrapper.
Cryptography: Poseidon2 hash, Pedersen hash (Starknet params), Short-Weierstrass Curves.
Math & utils: optimised Uint<_> big-integer ops (mul_div, shift-left/right, checked/unchecked add/sub).
Constructors now supported across all contracts.
All events derive Debug; contracts implement MethodError and IErc165.

Stylus SDK ↑ to v0.9.0 (cargo-stylus ↑ to v0.6.0)
Contracts refactored to new inheritance model.
Interface IDs now returned by fn interface_id(); IErc165::supports_interface takes &self; Erc165 struct removed.
Public state fields made private.
Feature std removed from libraries.

Full Changelog: https://github.com/OpenZeppelin/rust-contracts-stylus/compare/v0.1.2...v0.2.0.

v0.1.2 - 2025-04-12

Full Changelog: https://github.com/OpenZeppelin/rust-contracts-stylus/compare/v0.1.1...v0.1.2

Mini alloc is now used by default via the stylus-sdk. This avoids conflicts with duplicate #[global_allocator] definitions. #373
Removed the panic handler from the library, making it easier for std and no_std projects to use the library. #373

fix: reference-types error on nightly version by @qalisander in #375
fix: use mini-alloc by default and remove panic handler by @qalisander and @ggonzalez94 in #373
build: bump v0.1.1 by @bidzyyys in #382

Full Changelog: https://github.com/OpenZeppelin/rust-contracts-stylus/compare/v0.1.0...v0.1.1

First release 🎉