This marks the first minor release in the v0.10.0 series! This release contains no major new features. Instead this release packages a series of bug fixes, a new dry run migration mode (to test out migrations before they're applied permanently), and an enhancement to the channel selection/restrictions in the router sub-server.
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://keybase.io/roasbeef/pgp_keys.asc | gpg --import
Once you have the required PGP keys, you can verify the release (assuming manifest-v0.10.1-beta.txt and manifest-v0.10.1-beta.txt.sig are in the current directory) with:
gpg --verify manifest-v0.10.1-beta.txt.sig
You should see the following if the verification was successful:
pg: assuming signed data in 'manifest-v0.10.1-beta.txt'
gpg: Signature made Wed Jun 3 11:32:57 2020 PDT
gpg: using RSA key 4AB7F8DA6FAEBB3B70B1F903BC13F65E2DC84465
gpg: Good signature from "Olaoluwa Osuntokun <laolu32@gmail.com>" [ultimate]
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 <filename>, compare it with the corresponding one in the manifest file, and ensure they match exactly.
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 for how this can be achieved. The release binaries are compiled with go1.13.10, which is required by verifiers to arrive at the same ones. They include the following build tags: autopilotrpc, signrpc, walletrpc, chainrpc, invoicesrpc, routerrpc, and watchtowerrpc. 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=<OS-ARCH> tag=<tag> can be used.
Finally, you can also verify the tag itself with the following command:
git verify-tag v0.10.1-beta
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-v0.10.1-beta.tar.gz are in the current directory, follow these steps:
tar -xvzf vendor.tar.gz
tar -xvzf lnd-source-v0.10.1-beta.tar.gz
GO111MODULE=on go install -v -mod=vendor -ldflags "-X github.com/lightningnetwork/lnd/build.Commit=v0.10.1-beta" ./cmd/lnd
GO111MODULE=on go install -v -mod=vendor -ldflags "-X github.com/lightningnetwork/lnd/build.Commit=v0.10.1-beta" ./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:
make release sys="linux-arm64 darwin-amd64"
⚡️⚡️⚡️ OK, now to the rest of the release notes! ⚡️⚡️⚡️
Release Notes
btcd Compatability
With this release, lnd is now compatible with the current master branch of btcd, which included some changes to certain RPCs to sync them up with the latest iteration of them in bitcoind.
Easier Migration Testing w/ Dry Run Migrations
In this release, a new flag has been added: --dry-run-migration. As regular users of lnd are aware, we typically have a set of migrations that are bundled with major releases of lnd. Testing these new migrations can be tricky at times, since one a migration has been applied, one cannot go back. To make this process easier and less stressful for users (and also developers testing out migrations), the new --dry-run-migration flag will attempt to apply the migration as normal, but then rather than committing the database transaction, it'll perform an abort, leaving the database in the same state as before the migration.
It's our hope that this new flag will make it easier for existing users to help us test the release candidates of major releases.
RPC Bug Fixes
The ListChannels command will now properly omit uptime in the response if the server has not yet been started. It's possible to execute this call before the server has been started (backend synced to the chain), but as we don't connect to peers before the server is fully started, the uptime information isn't available.
A bug in the new streaming HTLC forwarding RPC has been fixed which could at times cause a panic if a link failure doesn't come along with the full details as expected.
A bug has been fixed that would cause a panic if a user attempted to use the ChainNotifier sub-server before the server has been fully started.
In order to make limits across the payment relate RPCs consistent, QueryRoutes now also allows users to query for routes with a payment value larger than the previous max payment size. Note that the "true' max payment size along a route, is limited by the smallest max_htlcfor a channel along the route.
RPC Enhancements
The SendPayment method on the new router rpc sub-server has been extended to allow users to specify a set of channels that the outgoing payments must use. This is useful as when doing MPP, the users can ensure that only a set of channels are used, which can be helpful in more precise rebalancing operations, and services such as Lightning Loop. The old outgoing_chan_id has been deprecated in favor of a new outgoing_chan_ids field which accepts a series of channel IDs to pin path finding to.
Pathfinding Bug Fixes
The main path finding loop will no longer treat an instance of "bad features" as a terminal error.
Watchtower Bug Fixes
Build Fixes
A change that went into lnd v0.10.0-beta inadvertently broke the build for those users still using Go 1.12. As we support Go 1.13 and 1.12 primarily, a fix has been made to ensure the project still builds with Go 1.12. We plan to "officially" support Go 1.14 for lnd v0.11.0-beta, pending some fixes to upstream packages we depend on.
The full list of changes since v0.10.0-beta can be found here:
Contributors (Alphabetical Order)
Carla Kirkk-Cohen
Conner Fromknecht
Joost Jager
Olaoluwa Osuntokun
Roei Erez
Wilmer Paulino