Breez SDK Core v0.5.0 Released

The Breez SDK enables developers to integrate Lightning and bitcoin payments into their apps with a very shallow learning curve.

We rely on community donations. Send sats here.

This SDK is an end-to-end, non-custodial, drop-in solution powered by Greenlight, a built-in LSP, on-chain interoperability, third-party fiat on-ramps, and other services users and operators need. The Breez SDK is free for developers.

What's new

Greenlight signer upgrade.
Keep closed channels in pending state until sweep
Introduce unregister webhook API
Support LNURL lightning query parameter
Fix chain service error when channel closing tx couldn't be find onchain
Show open channel fees in Invoice_paid event.
Fix balance update after receive.

Breaking Changes

NodeCredentials have been changes which now returns GreenlightDeviceCredentials
Config now contains GreenlightCredentials which has developer_key & developer_cert (different naming)

GitHub Repo

Click here to help us grow & maintain our ops.

Author: EZ

Get our newsletter and most important updates directly to your inbox.

No spam. Unsubscribe anytime.

COLDCARD Disaster: Weak Entropy Bug Enables Drain of Funds from Seeds Generated Since 2021

A build error present in COLDCARD firmware for more than five years made seeds generated on affected devices predictable, enabling attackers with no access to the hardware to reconstruct private keys offline and sweep the matching addresses.

03 Aug 2026

7 min read

Ashigaru Whirlpool and Terminal v1.0.0 Released

Ashigaru Whirlpool is a ZeroLink coinjoin implementation designed to sever all deterministic links between inputs and outputs, ensuring enhanced bitcoin transaction privacy.

23 Jun 2025

3 min read