SDK

Official SDKs wrap native JSON only (check, download, verify, optional delta/pack, optional replace). They do not implement Sparkle / electron-updater / WinGet store protocols.

Read install → Quick start until one check succeeds. Custom Transport / delta / in-use file replace / embedded networking: the rest of that language page plus Concepts. Store protocols: Electron/Sparkle scenario pages.

Treat documented versions such as 0.1.0 as placeholders for the current published version.

Install matrix

Language	Install	Minimum	Source branch
Python	pip install kirivers-client	Python 3.10+	sdk/python
Java	Maven official.kirizu:kirivers-client	JDK 17	sdk/java
Kotlin	official.kirizu:kirivers-client-kotlin (not a Java wrapper)	JDK 17	sdk/kotlin
C#	dotnet add package Kirizu.KiriVers.Client	.NET 8	sdk/csharp
TypeScript	npm install @kirizu/kirivers-client	Node 20+ / Electron main; not browsers	sdk/typescript
Rust	crates.io kirivers-client	Blocking API, no tokio required	sdk/rust
Dart	dart pub add kirivers_client	Dart 3; Flutter apps yes, Web no	sdk/dart
C	git clone -b sdk/c https://github.com/Kirizu-Official/KiriVers.git	C11; CMake hosted or embedded	sdk/c
C++	git clone -b sdk/cpp …	C++17	sdk/cpp
Go	go get github.com/Kirizu-Official/KiriVers-SDK-Go (separate repo)	Go modules	Publish repo; source sdk/go-src; sdk/go is a pointer
PHP	composer require kirizu/kirivers-client (repo KiriVers-SDK-PHP)	PHP 8.2+, no Guzzle	sdk/php-src; sdk/php is a pointer
Swift	SPM https://github.com/Kirizu-Official/KiriVers-SDK-Swift.git	Apple toolchain; do not add the server repo in Xcode	sdk/swift-src; sdk/swift is a pointer

Packages or dedicated GitHub repositories may be unpublished

Each language page includes a clone fallback. Do not go get / Packagist / SPM the server repo main or pointer branches sdk/go, sdk/php, sdk/swift.

Shared rules

1. The caller supplies base_url, project_ref, current version, os/arch, channel, and a stable app-generated device_id (the SDK never mints device identity).
2. HTTP 204 / no_update means up to date, not an error; 304 is an ETag hit.
3. Without a Replacer, do not describe one-click install.
4. Without a Patcher, do not advertise binary_delta.