Release notes

Here are brief summaries of what's changed between each snapshot release.

Unreleased

Here are changes in git master that haven't yet made it to a snapshot release:

Made the NotaryService extensible, we now have both validating and non-validating notaries.
Added a protocol for changing the notary for a state.
Every ContractState now has to specify a participants field, which is a list of parties that are able to consume this state in a valid transaction. This is used for e.g. making sure all relevant parties obtain the updated state when changing a notary.
Introduced TransactionState, which wraps ContractState, and is used when defining a transaction output. The notary field is moved from ContractState into TransactionState.
Every transaction now has a type field, which specifies custom build & validation rules for that transaction type. Currently two types are supported:
- General. Runs the default build and validation logic.
- NotaryChange. Contract code is not run during validation, checks that the notary field is the only difference between the inputs and outputs.
The cash contract has moved from com.r3corda.contracts to com.r3corda.contracts.cash.
Amount class is now generic, to support non-currency types (such as assets, or currency with additional information).
Refactored the Cash contract to have a new FungibleAsset superclass, to model all countable assets that can be merged and split (currency, barrels of oil, etc.)
Switched to the ed25519 elliptic curve from secp256r1. Note that this introduces a new external lib dependency.

This is the first release, which includes: