v0.4.1 — On-chain BTC & Tron transfers, 24/7 signerd

Changelog

All notable changes to Unbridge are documented in this file. The format is
based on Keep a Changelog, and this
project follows Semantic Versioning.

0.4.1 — 2026-07-04

Added

• End-to-end native Bitcoin testnet transfer signed by a 2-of-3 GG20 group
  and broadcast via mempool.space Esplora. Shares never combined.
• Native Tron transfer (Shasta testnet) signed by the same group over the
  Tron TransferContract protobuf txID and broadcast via the node API.
• Segwit assembly (SerializeSignedP2WPKHTx, DecodeBech32P2WPKH,
  P2WPKHScriptForPubkey) — full witness [DER||SIGHASH_ALL, pubkey].
• Ambient brand-video background for the web app (fixed, dimmed).
• 24/7 signerd on Fly.io — Dockerfile.railway, fly.toml worker.

Changed

• Rebrand across web, docs, app, marketing.
• README leads with the on-chain Bitcoin proof (first-page evidence).

Fixed

• Coordinator creates its log dir before spawning (pruned hosts panicked).
• Web Activity matched the wrong 32 bytes as requester (offset fix).
• On-chain program: dropped mismatched request-PDA seeds constraint after
  the client_nonce reseed (submit_partial no longer hits
  ConstraintSeeds). Redeployed to devnet.

0.3.0 — 2026-07-02

Added

• Group Ed25519 verifier + independent verification path via ed25519-dalek.
• FROST networked path over C ABI (kobe cdylib driven by the Go operator).
• Litesvm integration tests loading the built target/deploy/distin.so.

Changed

• Coordinator hardened for 24/7 hosting: per-request catch_unwind,
  RPC-blip tolerant.
• Web Activity polls every 6s while open.

0.2.0 — 2026-06-30

Added

• On-chain SigningRequest lifecycle: create, submit_partial,
  aggregate_and_emit, cancel, close.
• Operator bond accounting (Token-2022 LST), staked-weight threshold,
  slot-based liveness deadline.
• FROST Ed25519 keygen → threshold sign → verify.

0.1.0 — 2026-06-29

Added

• Initial repository. Skeleton of the on-chain distin program and the
  off-chain kobe (FROST Ed25519) and kobe-ecdsa (GG20 secp256k1) crates.
• Anchor 0.31 workspace, Solana toolchain 1.18.26.
• Program ID 4xy9dYHfAzi7cAcX5JHxNR6EoMJ9PGfeQDMHx6YUQQM6.

Full Changelog: https://github.com/unbridgeDev/unbridge/commits/v0.4.1