mirror of https://github.com/ACINQ/eclair.git synced 2025-03-13 11:35:47 +01:00

Pierre-Marie Padiou da98e19540

Simplify on-chain fee management (#2696 )

Move away from the "block target" approach.

Get rid of the `FeeEstimator` abstraction and use an `AtomicReference` to store and update the current feerates, similar to the block count.

2023-06-20 11:56:24 +02:00

2.2 KiB

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Eclair vnext

Major changes

Use priority instead of block target for feerates

Eclair now uses a slow/medium/fast notation for feerates (in the style of mempool.space), instead of block targets. Only the funding and closing priorities can be configured, the feerate for commitment transactions is managed by eclair, so is the fee bumping for htlcs in force close scenarii. Note that even in a force close scenario, when an output is only spendable by eclair, then the normal closing priority is used.

Default setting is medium for both funding and closing. Node operators may configure their values like so:

eclair.on-chain-fees.confirmation-priority {
    funding = fast
    closing = slow
}

This configuration section replaces the previous eclair.on-chain-fees.target-blocks section.

API changes

Miscellaneous improvements and bug fixes

Verifying signatures

You will need gpg and our release signing key 7A73FE77DE2C4027. Note that you can get it:

from our website: https://acinq.co/pgp/drouinf.asc
from github user @sstone, a committer on eclair: https://api.github.com/users/sstone/gpg_keys

To import our signing key:

$ gpg --import drouinf.asc

To verify the release file checksums and signatures:

$ gpg -d SHA256SUMS.asc > SHA256SUMS.stripped
$ sha256sum -c SHA256SUMS.stripped

Building

Eclair builds are deterministic. To reproduce our builds, please use the following environment (*):

Ubuntu 22.04
AdoptOpenJDK 11.0.6
Maven 3.9.2

Use the following command to generate the eclair-node package:

mvn clean install -DskipTests

That should generate eclair-node/target/eclair-node-<version>-XXXXXXX-bin.zip with sha256 checksums that match the one we provide and sign in SHA256SUMS.asc

(*) You may be able to build the exact same artefacts with other operating systems or versions of JDK 11, we have not tried everything.

Upgrading

This release is fully compatible with previous eclair versions. You don't need to close your channels, just stop eclair, upgrade and restart.

Changelog

2.2 KiB Raw Blame History