1.0.1

1.0.1 is a patch release that fixes a bug in the AnchorSerialize and AnchorDeserialize derive macros. See the full CHANGELOG.

How to upgrade

Updating a single project anchor dependencies (up from v1.0.0) via

cargo update anchor-derive-serde

Using AVM (recommended)

avm install 1.0.1

Without AVM

cargo install --git https://github.com/solana-foundation/anchor --tag v1.0.1 anchor-cli --locked

Common steps

Update Anchor crate(s) to 1.0.1.
Update TS package(s) to 1.0.1.

Recommended Solana Version

The recommended Solana version is 3.1.10, unchanged from 1.0.0.

Structs and enums that carry custom #[borsh(...)] attributes — such as #[borsh(skip)] or #[borsh(use_discriminant = true)] — now work correctly with #[derive(AnchorSerialize, AnchorDeserialize)].

Previously, the generated derive code tried to emit its own item-level #[borsh] attribute alongside any user-supplied one. Because only a single item-level #[borsh] attribute is allowed, this caused a compile error. The macros now extract user-provided #[borsh] attributes and merge them with the generated ones, so both coexist correctly.

The #[borsh] attribute is currently not supported when the lazy-account feature is enabled. The only exception being #[borsh(use_discriminant = false)].

// This now compiles without errors
#[derive(AnchorSerialize, AnchorDeserialize)]
#[borsh(use_discriminant = true)]
pub enum MyEnum {
    A = 0,
    B = 5,
}