Sourced from ink_lang_codegen's releases.

ink! 3.0.0 RC 9

Version 3.0-rc9

This is the 9th release candidate for ink! 3.0.

Breaking Changes

We removed all data structures other than Mapping from the public ink! API

This is a drastic breaking change; it was no easy decision for us. It affects Lazy and Memory as well. The rationale behind this change, as well as some notes on migrating existing contracts, are explained in #1111 and #1137.

If you used Memory in your contract, you can achieve the same functionality by passing this data via arguments. If you think there's a case to be made for bringing it back, please get in contact with us.

If you use ink_storage::Mapping in your contract, you need to initialize the data structure using the helper function ink_lang::utils::initialize_contract(…). For more code examples you can take a look at our examples, e.g. erc20.

Please upgrade scale-info and parity-scale-codec in your contract's dependencies

In this release candidate we upgraded scale-info and parity-scale-codec. You have to use a compatible version in your contract's Cargo.toml as well; cargo-contract will throw an error otherwise.

The Cargo.toml should contain

scale-info = { version = "2", default-features = false, features = ["derive"], optional = true }
scale = { package = "parity-scale-codec", version = "3", default-features = false, features = ["derive", "full"] }

Added

• Export ink_lang::utils::initialize_contract(…) - #1077.
• Add get_owner() function to dns example contract - #1118 (thanks @​agryaznov).
• Improved usage documentation of ink_storage::Mapping - #1138.

Changed

• Updated to parity-scale-codec = "3" and scale-info = "2" - #1132.

Removed

• Remove collection and lazy modules from public ink! API - #1111.
• Remove Memory from public ink! API - #1137.

Fixed

• Fix bug with referencing two external trait definitions - #1141.
• Explicitly specify trait in dispatching - #1131 (thanks @​xgreenx).

... (truncated)

Sourced from ink_lang_codegen's changelog.

Version 3.0-rc9

This is the 9th release candidate for ink! 3.0.

Breaking Changes

We removed all data structures other than Mapping from the public ink! API

This is a drastic breaking change; it was no easy decision for us. It affects Lazy and Memory as well. The rationale behind this change, as well as some notes on migrating existing contracts, are explained in #1111 and #1137.

If you used Memory in your contract, you can achieve the same functionality by passing this data via arguments. If you think there's a case to be made for bringing it back, please get in contact with us.

If you use ink_storage::Mapping in your contract, you need to initialize the data structure using the helper function ink_lang::utils::initialize_contract(…). For more code examples you can take a look at our examples, e.g. erc20.

Please upgrade scale-info and parity-scale-codec in your contract's dependencies

In this release candidate we upgraded scale-info and parity-scale-codec. You have to use a compatible version in your contract's Cargo.toml as well; cargo-contract will throw an error otherwise.

The Cargo.toml should contain

scale-info = { version = "2", default-features = false, features = ["derive"], optional = true }
scale = { package = "parity-scale-codec", version = "3", default-features = false, features = ["derive", "full"] }

Added

• Export ink_lang::utils::initialize_contract(…) - #1077.
• Add get_owner() function to dns example contract - #1118 (thanks @​agryaznov).
• Improved usage documentation of ink_storage::Mapping - #1138.

Changed

• Updated to parity-scale-codec = "3" and scale-info = "2" - #1132.

Removed

• Remove collection and lazy modules from public ink! API - #1111.
• Remove Memory from public ink! API - #1137.

Fixed

• Fix bug with referencing two external trait definitions - #1141.
• Explicitly specify trait in dispatching - #1131 (thanks @​xgreenx).
• Make rust-analyzer expand ink! macros without warning - #1107.

... (truncated)

• 07a8ed9 Release ink! 3.0.0-rc9 (#1135)
• 2f86746 Unique trait id as a parameter for CallBuilder trait impls (#1141)
• 9fd0317 Remove redundant setting of std feature (#1140)
• 0869d33 Fix test fixture for nightly-2022-02-17 (#1139)
• be42524 Improve documentation of ink_storage::Mapping (#1138)
• b68bed6 Remove Memory (#1137)
• e345679 Re-export initialize_contract function (#1077)
• d35b3d7 Update to parity-scale-codec 3 and scale-info 2 (#1132)
• 67b457c Explicitly specify the trait in the dispatching (#1131)
• 88b12d6 Enable use of global secp256k1 context (#1123)
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