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e450c6bbdb
core-lightning/CHANGELOG.md
Rusty Russell e450c6bbdb gossipd: remove time-delayed local channel_update, produce DISABLE on-demand. 
We have a lot of infrastructure to delay local channel_updates to
avoid spamming on each peer reconnect; we had to keep tracking of
pending ones though, in case we needed the very latest for sending an
error when failing an HTLC.

Instead, it's far simpler to set the local_disabled flag on a channel
when we disconnect, but only send a disabling channel_update if we
actually fail an HTLC.

Note: handle_channel_update() TAKES update (due to tal_arr_dup), but we
didn't use that before.  Now we do, add annotation.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-26 03:21:35 +00:00

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog and this project adheres to Semantic Versioning.

Unreleased

Added

  • JSON API: listpeers has new field scratch_txid: the latest tx in channel.
  • JSON API: listchannels has two new fields: message_flags and channel_flags. This replaces flags.
  • Bitcoind: more parallelism in requests, for very slow nodes.
  • Testing: fixed logging, cleaner interception of bitcoind, minor fixes.

Changed

  • Protocol: channel_update sent to disable channel only if we reject an HTLC.

Deprecated

Note: You should always set allow-deprecated-apis=false to test for changes.

  • JSON RPC: listchannels' flags field. This has been split into two fields, see Added.

Removed

Fixed

  • Startup: more coherent complaint if daemon already running.
  • JSON RPC: getinfo now shows correct Tor port.
  • JSON RPC: ping now works even after one peer fails to respond.
  • JSON RPC: getroute fuzzpercent and pay maxfeepercent can now be > 100.
  • Protocol: fix occasional deadlock when both peers flood with gossip.

Security

0.6.1 - 2018-09-11: "Principled Opposition To Segwit"

This release named by ZmnSCPxj.

Added

  • Protocol: gossipd now deliberately delays spamming with channel_update.
  • Protocol: liveness ping when we commit changes but peer is idle: speeds up failures and reduces forced closures.
  • Protocol: option_data_loss_protect now supported to protect peers against being out-of-date.
  • JSON API: Added description to invoices and payments (#1740).
  • JSON API: getinfo has new fields alias and color.
  • JSON API: listpeers has new fields global_features and local_features.
  • JSON API: listnodes has new field global_features.
  • JSON API: ping command to send a ping to a connected peer.
  • JSON API: feerates command to retrieve current fee estimates.
  • JSON API: withdraw and fundchannel can be given manual feerate.
  • Config: --conf option to set config file.
  • Documentation: Added CHANGELOG.md
  • pylightning: RpcError now has method and payload fields.
  • Sending lightningd a SIGHUP will make it reopen its log-file, if any.

Changed

  • Protocol: Fee estimates are now smoothed over time, to avoid sudden jumps.
  • Config: You can only announce one address if each type (IPv4, IPv6, TORv2, TORv3).
  • lightning-cli: the help command for a specific command now runs the man command.
  • HSM: The HSM daemon now maintains the per-peer secrets, rather than handing them out. It's still lax in what it signs though.
  • connectd: A new daemon lightning_connectd handles connecting to/from peers, instead of gossipd doing that itself. lightning_openingd now handles peers immediately, even if they never actually open a channel.
  • Test: python-xdist is now a dependency for tests.
  • Logging: JSON connections no longer spam debug logs.
  • Routing: We no longer consider channels that are not usable either because of their capacity or their htlc_minimum_msat parameter (#1777)
  • We now try to connect to all known addresses for a peer, not just the one given or the first one announced.
  • Crash logs are now placed one-per file like crash.log.20180822233752
  • We will no longer allow withdrawing funds or funding channels if we do not have a fee estimate (eg. bitcoind not synced); use new feerate arg.

Deprecated

Removed

  • JSON API: listpeers results no long have alias and color fields; they're in listnodes (we used to internally merge the information).
  • JSON API: listpeers will never have state field (it accidentally used to exist and set to GOSSIPING before we opened a channel). connected will indicate if we're connected, and the channels array indicates individual channel states (if any).
  • Config: default-fee-rate is no longer available; use explicit feerate option if necessary.
  • Removed all Deprecated options from 0.6.

Fixed

  • Protocol: node_announcement multiple addresses are correctly ordered and uniquified.
  • Protocol: if we can't estimate feerate, be almost infinitely tolerant of other side setting fees to avoid unilateral close.
  • JSON API: listnodes: now displays node aliases and colors even if they don't advertise a network address
  • JSON API: fundchannel all: now restricts to 2^24-1 satoshis rather than failing.
  • JSON API: listnodes: now correctly prints addresses if more than one is advertised.
  • Config: bind-addr of a publicly accessible network address was announced.
  • When we reconnect and have to retransmit failing HTLCs, the errors weren't encrypted by us.
  • lightningd_config man page is now installed by make install.
  • Fixed crash when shutting down during opening a channel (#1737)
  • Don't lose track of our own output when applying penalty transaction (#1738)
  • Protocol: channel_update inside error messages now refers to correct channel.
  • Stripping type prefix from channel_updates that are nested in an onion reply to be compatible with eclair and lnd (#1730).
  • Failing tests no longer delete the test directory, to allow easier debugging (Issue: #1599)

Security

0.6 - 2018-06-22: "I Accidentally The Smart Contract"

In the prehistory of c-lightning, no changelog was kept. But major JSON API changes are tracked.

This release named by Fabrice Drouin.

Deprecated

Note: You should always set allow-deprecated-apis=false to test for changes.

  • Config: port. Use addr=:<portnum>.
  • Config: ipaddr. Use addr.
  • Config: anchor-confirms. Use funding-confirms.
  • Config: locktime-blocks. Use watchtime-blocks.
  • Protocol: on closing we allow out-of-range offers, prior to spec fix 2018-01-30 ("BOLT 2: order closing-signed negotiation by making funder send first." 90241d9cf60a598eac8fd839ac81e4093a161272)
  • JSON API: listinvoice command. Use listinvoices.
  • JSON API: invoice result fields paid_timestamp and expiry_time. Use paid_at and expires_at.
  • JSON API: invoice command field fallback. Use fallbacks.
  • JSON API: decodepay result fields timestamp and fallback. Use created_at and fallbacks.
  • JSON API: payment result fields timestamp. Use created_at.
  • JSON API: getinfo result field port. Use binding and address arrays.
  • JSON API: getlog result field creation_time. Use created_at.
  • JSON API: getpeers result field channel_reserve_satoshis. Use their_channel_reserve_satoshis.
  • JSON API: getpeers result field to_self_delay. Use their_to_self_delay.

Older versions

There predate the BOLT specifications, and are only of vague historic interest:

  1. 0.1 - 2015-08-08: "MtGox's Cold Wallet" (named by Rusty Russell)
  2. 0.2 - 2016-01-22: "Butterfly Labs' Timely Delivery" (named by Anthony Towns)
  3. 0.3 - 2016-05-25: "Nakamoto's Genesis Coins" (named by Braydon Fuller)
  4. 0.4 - 2016-08-19: "Wright's Cryptographic Proof" (named by Chrstian Decker)
  5. 0.5 - 2016-10-19: "Bitcoin Savings & Trust Daily Interest" (named by Glenn Willen)
  6. 0.5.1 - 2016-10-21
  7. 0.5.2 - 2016-11-21: "Bitcoin Savings & Trust Daily Interest II"