Twofold v0.1.0 – Initial release

This is the initial release of Twofold.

Overview

• Introduced a record-based Twofold<L, R> type
• Supported left/right-style error handling
• Provided basic helpers for mapping, folding, and fallback values

Notes

• This version allowed invalid states (both values null)
• API design was experimental
• Superseded by v0.2.0, which introduces a sealed, safer, and more expressive design

⚠️ This version is kept for historical reference only.
Users are strongly encouraged to upgrade to v0.2.0.