# Changelog

All notable changes to NXST follow [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).  
Version numbers are calendar-based (`MM.DD.YYYY`) until the protocol stabilises.

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## [Unreleased]

### Changed
- Full architectural refactor (8 phases):
  - Layered directory structure: `src/` + `include/nxst/` mirroring domain / infra / service / ui
  - CMake build system replacing Makefile
  - `nxst::TransferService` — all network state and threads moved out of UI layer
  - `nxst::Result<T>` tagged-union type replacing `std::tuple<bool, Result, std::string>`
  - RAII handles: `FsFileSystemHandle`, `FileHandle`
  - Logger rewritten with `nxst::log` namespace and compile-time format checking
  - snake_case filenames and identifiers throughout

### Fixed
- `mkdir(path, 777)` was decimal (octal `01411`) — corrected to `0777`
- Logger format args were silently dropped (double-substitution bug)
- `new u8[]` / `malloc` in IO paths replaced with `std::vector`

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## [04.26.2026]

### Added
- Initial public release: save transfer between two Nintendo Switch consoles over local Wi-Fi
- Multicast discovery (UDP `239.0.0.1:8081`) + TCP file transfer (`:8080`)
- Send and Receive modes with progress overlay and cancel support
- Automatic save backup before transfer
- Restore replaces live save data and commits to the save device