iox v0.3.3 — Go 1.26 modernization

[hayabusa-cloud]

Introduction

iox extends Go's standard io package with non-blocking semantics for event-driven I/O stacks. It introduces two first-class control flow signals — ErrWouldBlock (no progress possible now; retry after readiness) and ErrMore (progress happened; more completions will follow) — while preserving standard io.Reader/io.Writer compatibility and fast paths (WriterTo/ReaderFrom).

The package provides Copy/CopyN helpers with semantic policy support, Tee adapters with precise progress counting, adaptive backoff for I/O readiness waiting, and Seeker-based partial write recovery. All semantic predicates and policy dispatch paths are zero-allocation.

Usage

var b iox.Backoff

for {
    n, err := conn.Read(buf)
    if err == iox.ErrWouldBlock {
        b.Wait()
        continue
    }
    if err != nil {
        return err
    }
    process(buf[:n])
    b.Reset()
}

Highlights

This release bumps the minimum Go version to 1.26 and modernizes the codebase using go fix. No API changes — fully backward compatible with v0.3.x.

What's Changed

Improvements

• Bump minimum Go version from 1.25 to 1.26 (Modernize to Go 1.26 #21)
• Apply go fix modernizers: min()/max() builtins, for range N syntax (Modernize to Go 1.26 #21)
• CI matrix updated to test against Go 1.26.x and stable (Modernize to Go 1.26 #21)

Compatibility

• Go: 1.26+
• Platforms: linux/amd64, linux/arm64, linux/riscv64, linux/loong64

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This discussion was created from the release iox v0.3.3 — Go 1.26 modernization.