This repo is the specification of the Filecoin builtin actors, in the form of executable code.
This is a companion to the rest of the Filecoin Specification, but also directly usable by Go implementations of Filecoin.
Releases of this repo follow semantic versioning rules interpreted for distributed state machines.
- A major version change indicates a backwards-incompatible change in the state machine evaluation. This means that the same sequence of messages would produce different states at two different major versions. In a blockchain, this would usually require a coordinated network upgrade or "hard fork".
- A minor version change indicates a change in exported software interfaces, while retaining compatible state evaluation. A minor version change will usually require some changes to the host software, but different machiens running different minor versions of the same major version should continue to agree about state evaluation. Note that this differs from semantic versioning strictly defined (which would require a major version change for this too).
- A patch version change indicates a backward compatible fix or improvement that doesn't change state evaluation semantics or exported interfaces.
This repository is dual-licensed under Apache 2.0 and MIT terms.
Copyright 2019-2020. Protocol Labs, Inc.