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Bolt21 v1.0.0 - Initial Mainnet Release

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@CaliforniaHodl CaliforniaHodl released this 01 Jan 08:09
· 12 commits to main since this release
v1.0.0
785306c

Bolt21 v1.0.0 - Initial Mainnet Release

We're excited to announce the first public release of Bolt21, a self-custody Bitcoin Lightning wallet built for speed, security, and simplicity.

Highlights

Lightning-Fast Payments

  • BOLT11 & BOLT12 support for instant Lightning payments
  • Lightning Address compatibility for easy payments
  • QR code scanning for seamless transactions
  • Real-time payment notifications

Self-Custody Security

  • 24-word BIP39 recovery phrase - you control your keys
  • AES-256-GCM encryption for all local data
  • Biometric authentication (Face ID / Fingerprint) for payments
  • Certificate pinning on iOS and Android for MITM protection
  • Memory-safe mnemonic handling with secure wiping

Multi-Wallet Support

  • Create and manage multiple wallets
  • Easy wallet switching with isolation
  • Per-wallet address generation

Bitcoin On-Chain

  • Deposit Bitcoin via on-chain address
  • Automatic swap to Lightning balance
  • Refund protection for failed swaps

Security

This release has passed a comprehensive security audit:

Category Score
Cryptography A+
Network Security A
Input Validation A+
Memory Safety A
Payment Authorization A
Overall A
  • 30/30 attack vectors tested and blocked
  • 12/12 automated security checks passing
  • Triple-overwrite mnemonic wiping (DOD 5220.22-M standard)
  • Unicode homograph attack protection
  • Rate limiting and balance validation

Technical Details

  • Framework: Flutter 3.10+
  • Lightning SDK: Breez SDK (Liquid)
  • Min Android: API 21 (Android 5.0)
  • Min iOS: iOS 12.0
  • Architecture: ARM64, x86_64

Installation

Android

Download the APK from the assets below or install from Google Play (coming soon).

iOS

Available via TestFlight. App Store release coming soon.

What's Next (v1.1.0)

  • Hybrid mode with personal LND node support
  • Community Node integration for zero-fee payments
  • Enhanced payment history with export
  • Widget support for quick balance check

Feedback

Found a bug or have a feature request? Open an issue on GitHub or reach out on Twitter @california_hodl.

Take control of your Bitcoin with Bolt21.

Built with love for the Bitcoin community.

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