This marks the first minor release of the 0.15.x cyle! This release includes support for zero conf channels, scid alisases (random scid values in the invoice), switches to using taproot addresses everywhere applicable by default, and also includes an _optional_ database migration that can potential reclaim GBs of disk space for old or large lnd nodes. # Database Migrations This release contains an _optional_ migration to _delete_ old revocation log space. The v0.15 release contained an "on the fly" migration that will start to write items in the revocation log in a more efficient manner. This release allows users to reclaim all the old disk space by converting historical records to the new format, with the old records being deleted. The migration can be activated with a new CLI command: `--db.prune-revocation=true`. This migration can be restart at any time, with the migration logic picking up from where it left off. # Verifying the Release In order to verify the release, you'll need to have `gpg` or `gpg2` installed on your system. Once you've obtained a copy (and hopefully verified that as well), you'll first need to import the keys that have signed this release if you haven't done so already: ``` curl https://raw.githubusercontent.com/lightningnetwork/lnd/master/scripts/keys/roasbeef.asc | gpg --import ``` Once you have the required PGP keys, you can verify the release (assuming `manifest-roasbeef-v0.15.1-beta.rc1.sig` and `manifest-v0.15.1-beta.rc1.txt` are in the current directory) with: ``` gpg --verify manifest-roasbeef-v0.15.1-beta.rc1.sig manifest-v0.15.1-beta.rc1.txt ``` You should see the following if the verification was successful: ``` gpg: Signature made Mon Aug 15 17:21:12 2022 PDT gpg: using RSA key 60A1FA7DA5BFF08BDCBBE7903BBD59E99B280306 gpg: Good signature from "Olaoluwa Osuntokun
That will verify the signature of the manifest file, which ensures integrity and authenticity of the archive you've downloaded locally containing the binaries. Next, depending on your operating system, you should then re-compute the `sha256` hash of the archive with `shasum -a 256
`, compare it with the corresponding one in the manifest file, and ensure they match *exactly*.
## Verifying the Release Timestamp
From this new version onwards, in addition time-stamping the _git tag_ with [OpenTimeStamps](https://opentimestamps.org/), we'll also now timestamp the manifest file along with its signature. Two new files are now included along with the rest of our release artifacts: ` manifest-roasbeef-v0.15.1-beta.rc1.txt.asc.ots`.
Assuming you have the opentimestamps client installed locally, the timestamps can be verified with the following commands:
ots verify manifest-roasbeef-v0.15.1-beta.rc1.sig.ots -f manifest-roasbeef-v0.15.1-beta.rc1.sig
Alternatively, [the open timestamps website](https://opentimestamps.org/) can be used to verify timestamps if one doesn't have a `bitcoind` instance accessible locally.
These timestamps should give users confidence in the integrity of this release even after the key that signed the release expires.
## Verifying the Release Binaries
Our release binaries are fully reproducible. Third parties are able to verify that the release binaries were produced properly without having to trust the release manager(s). See our [reproducible builds guide](https://github.com/lightningnetwork/lnd/tree/master/build/release) for how this can be achieved.
The release binaries are compiled with `go1.18.2`, which is required by verifiers to arrive at the same ones.
They include the following build tags: `autopilotrpc`, `signrpc`, `walletrpc`, `chainrpc`, `invoicesrpc`, `neutrinorpc`, `routerrpc`, `watchtowerrpc`, `monitoring`, `peersrpc`, `kvdb_postrgres`, and `kvdb_etcd`. Note that these are already included in the release script, so they do not need to be provided.
The `make release` command can be used to ensure one rebuilds with all the same flags used for the release. If one wishes to build for only a single platform, then `make release sys= tag= ` can be used.
Finally, you can also verify the _tag_ itself with the following command:
$ git verify-tag v0.15.1-beta.rc1
gpg: Signature made Mon 15 Aug 2022 09:22:28 PM UTC using RSA key ID 9B280306
gpg: Good signature from "Olaoluwa Osuntokun "
## Verifying the Docker Images
To verify the `lnd` and `lncli` binaries inside the docker images against the signed, reproducible release binaries, there is a verification script in the image that can be called (before starting the container for example):
$ docker run --rm --entrypoint="" lightninglabs/lnd:v0.15.1-beta.rc1 /verify-install.sh v0.15.1-beta.rc1
$ if [ "$OK" -ne "0" ]; then echo "Verification failed!"; exit 1; done
$ docker run lightninglabs/lnd [command-line options]
# Building the Contained Release
Users are able to rebuild the target release themselves without having to fetch any of the dependencies. In order to do so, assuming
that `vendor.tar.gz` and `lnd-source-v0.15.1-beta.rc1.tar.gz` are in the current directory, follow these steps:
tar -xvzf vendor.tar.gz
tar -xvzf lnd-source-v0.15.1-beta.rc1.tar.gz
GO111MODULE=on go install -v -mod=vendor -ldflags "-X github.com/lightningnetwork/lnd/build.Commit=v0.15.1-beta.rc1" ./cmd/lnd
GO111MODULE=on go install -v -mod=vendor -ldflags "-X github.com/lightningnetwork/lnd/build.Commit=v0.15.1-beta.rc1" ./cmd/lncli
The `-mod=vendor` flag tells the `go build` command that it doesn't need to fetch the dependencies, and instead, they're all enclosed in the local vendor directory.
Additionally, it's now possible to use the [enclosed `release.sh` script to bundle a release for a _specific_ system like so](https://github.com/lightningnetwork/lnd/pull/2191):
make release sys="linux-arm64 darwin-amd64"
⚡️⚡️⚡️ OK, now to the rest of the release notes! ⚡️⚡️⚡️
# Release Notes
# Contributors (Alphabetical Order)