Add changelog and bump version numbers

CHANGELOG.md

@@ -0,0 +1,51 @@
+# Changelog
+
+These crates follow [semver](https://semver.org).
+
+## [0.6.0](https://github.com/OffchainLabs/stylus-sdk-rs/releases/tag/v0.6.0) - 2024-08-30
+
+### Breaking Changes
+
+- `#[selector(id = ...)]` syntax has been removed to avoid misleading contracts
+  from being implemented.
+- Several methods in `RawDeploy` which were not fully implemented yet
+- `#[pure]`, `#[view]` and `#[write]` attributes have been removed in favor of
+  using arguments to infer state mutability.
+- `stylus-sdk` now ships with `mini-alloc` enabled by default. This means that
+  a `#[global_allocator]` should not be declared in most cases. If a custom
+  allocator is still needed the `mini-alloc` should be disabled (enabled by
+  default).
+- `StorageU1` and `StorageI1` types have been removed.
+
+### Deprecated
+
+- The `#[external]` macro is now deprecated in favor of `#[public]` which
+  provides the same funcitonality.
+- The `#[solidity_storage]` macro is now deprecated in favor of `#[storage]`
+  which provides the same functionality.
+
+### Changed
+
+- Ensure consistency between proc macros when parsing attributes.
+- Update `sol_interface!` macro to report errors when using Solidity features
+  which have not yet been implemented.
+
+### Fixed
+
+- Properly encode bytes when calling external contracts.
+- Properly encode BYtes and strings in return types.
+- Bytes type now works properly in `export-abi`.
+- `export-abi` now works for contracts with no functions with returned values.
+- Off-by-one error when storing strings with length 32.
+- Interfaces in `sol_interface!` no longer incorrectly inherit functions from
+  previous definitions.
+
+### Documentation
+
+- Various documentation updates for clarity.
+- Cleaned up typos and moved TODOs to the github issue tracker.
+
+### Security
+
+- Function signatures which generate the same selector values will now fail
+  at compile-time to avoid misleading contract calls.

Cargo.toml

@@ -3,7 +3,7 @@ members = ["stylus-sdk", "stylus-proc", "mini-alloc"]
 resolver = "2"
 
 [workspace.package]
-version = "0.5.2"
+version = "0.6.0"
 edition = "2021"
 authors = ["Offchain Labs"]
 license = "MIT OR Apache-2.0"
@@ -33,4 +33,4 @@ convert_case = "0.6.0"
 # members
 mini-alloc = { path = "mini-alloc" }
 stylus-sdk = { path = "stylus-sdk" }
-stylus-proc = { path = "stylus-proc", version = "0.5.2" }
+stylus-proc = { path = "stylus-proc", version = "0.6.0" }