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@cdecker cdecker released this 25 Jun 17:20
· 12977 commits to master since this release
v0.6
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cdecker Christian Decker
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While there are far too many new features in the 0.6 release to list, the following are the most interesting and impactful:

  • Lightweight nodes: Previous releases required a full bitcoind node
    running alongside c-lightning, to provide access to the Bitcoin network. This
    release still requires the bitcoin-cli utility to be present, but it can
    now talk to remote nodes as well, including some lightweight nodes such as
    spruned. This makes it possible to run a c-lightning node on
    Raspberry Pis as well as other low-powered devices.
  • The gossip protocol has been updated to use a more lightweight bandwidth
    mechanism that asks for specific information, rather than exchanging full
    network views as the previous release did. This is particularly important for
    low-powered and mobile devices that would otherwise spend a lot of bandwidth
    and energy downloading and verifying information they already have.
  • API stability: The c-lightning JSON-RPC interface and supporting
    libraries have been redesigned in order to minimize changes in future
    releases. This API stability should make it easy for other projects to build
    on top of c-lightning because we will support this version of the API for the
    foreseeable future, maintaining backward compatibility, should we introduce
    any changes.
  • Wallet and sync: c-lightning now includes a full-fledged wallet that
    manages both on-chain and off-chain funds. There is no more raw transaction
    handling! All funds are automatically tracked and returned to the internal
    wallet as soon as possible, with no user interaction required. In addition
    the blockchain tracking now maintains an internal view of the blockchain,
    ending long blockchain rescans.
  • TOR support: c-lightning now supports connecting to nodes over the TOR
    network, auto-registering as a hidden service, and accepting incoming
    connections over TOR.
  • The payment logic has undergone a major overhaul to support automatic
    retries for routing failures, randomization of route selection, and better
    feedback about the current state of a payment.
  • And as always: performance, performance, performance.
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