Notes #

• First 0.1.0 release of this package.

Features #

Implement addresses and keys packages ported from @solana/addresses and @solana/keys.

solana_kit_addresses (65 tests):

• Address extension type wrapping validated base58-encoded 32-byte strings
• Address codec (getAddressEncoder/getAddressDecoder/getAddressCodec) for 32-byte fixed-size encoding
• Address comparator with base58 collation rules matching Solana runtime ordering
• Ed25519 curve checking (compressedPointBytesAreOnCurve, isOnCurveAddress, isOffCurveAddress)
• PDA derivation (getProgramDerivedAddress) with SHA-256, bump seed search, and seed validation
• createAddressWithSeed for deterministic address derivation
• Public key to/from address conversion utilities

solana_kit_keys (36 tests):

• Signature and SignatureBytes extension types for Ed25519 signatures
• Key pair generation, creation from bytes, and creation from private key bytes
• Ed25519 sign/verify operations using ed25519_edwards package
• Signature validation (string length, byte length, base58 decoding)
• Private key validation and public key derivation

Initial scaffold for 18 core packages forming the foundation and middle layers of

the Solana Kit dependency graph. Each package has its pubspec.yaml with correct workspace dependencies, shared analysis_options.yaml, and an empty barrel export file ready for implementation.

Package groups scaffolded:

• Crypto & Identity: addresses (base58), keys (Ed25519), signers (interfaces)
• Codecs: core interfaces, numbers, strings, data structures, umbrella re-export
• Utilities: functional (pipe/compose), options (Rust-like Option codec), fast_stable_stringify, subscribable (reactive patterns)
• Transaction Building: instructions, instruction_plans, transaction_messages, transactions (compilation & signing)
• Other: offchain_messages, test_matchers

Fixes #

Enhance core SDK packages with additional functionality and tests.

• Codecs core: Enhanced addCodecSizePrefix with additional functionality
• Codecs data structures: Array codec improvements
• Codecs numbers: shortU16 codec enhancements
• Codecs strings: UTF-8 codec improvements
• Keys: Key pair and signatures enhancements
• RPC transport: HTTP transport and WebSocket channel updates
• Transactions: Transaction codec enhancements