Upgrades
Upgrades — Feature Development & Product Enhancement
GreyBound adds features to a Bitcoin wallet or signing stack that already ships. The work goes into the live codebase: descriptors, PSBT flows, multisig, hardware-signer paths, fee and coin selection, and the backend or indexer the wallet uses.
The client receives:
- Feature Scope & Design (requirements, interfaces, constraints, and Bitcoin/security considerations)
- Implementation on the Existing Product (features delivered into the live codebase)
- Tests & Validation (unit/integration coverage, security-relevant checks, and regression protection)
- Documentation & Handoff (how the feature works, how to operate it, and how to extend it)
- Upgrade Path Notes (rollout considerations, compatibility, and production readiness for the change)