mirror of
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116 lines
4.4 KiB
Markdown
116 lines
4.4 KiB
Markdown
# Release Notes
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# Backend Enhancements & Optimizations
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## Full remote database support
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`lnd` now stores [all its data in the same remote/external
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database](https://github.com/lightningnetwork/lnd/pull/5484) such as `etcd`
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instead of only the channel state and wallet data. This makes `lnd` fully
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stateless and therefore makes switching over to a new leader instance almost
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instantaneous. Read the [guide on leader
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election](https://github.com/lightningnetwork/lnd/blob/master/docs/leader_election.md)
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for more information.
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## RPC Server
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* [Return payment address and add index from
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addholdinvoice call](https://github.com/lightningnetwork/lnd/pull/5533).
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* [The versions of several gRPC related libraries were bumped and the main
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`rpc.proto` was renamed to
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`lightning.proto`](https://github.com/lightningnetwork/lnd/pull/5473) to fix
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a warning related to protobuf file name collisions.
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## Security
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### Admin macaroon permissions
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The default file permissions of admin.macaroon were [changed from 0600 to
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0640](https://github.com/lightningnetwork/lnd/pull/5534). This makes it easier
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to allow other users to manage LND. This is safe on common Unix systems
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because they always create a new group for each user.
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If you use a strange system or changed group membership of the group running LND
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you may want to check your system to see if it introduces additional risk for
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you.
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# Build System
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* [A new pre-submit check has been
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added](https://github.com/lightningnetwork/lnd/pull/5520) to ensure that all
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PRs ([aside from merge
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commits](https://github.com/lightningnetwork/lnd/pull/5543)) add an entry in
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the release notes folder that at least links to PR being added.
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* [A new build target itest-race](https://github.com/lightningnetwork/lnd/pull/5542)
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to help uncover undetected data races with our itests.
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* [The itest error whitelist check was removed to reduce the number of failed
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Travis builds](https://github.com/lightningnetwork/lnd/pull/5588).
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# Documentation
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* [Outdated warning about unsupported pruning was replaced with clarification that LND **does**
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support pruning](https://github.com/lightningnetwork/lnd/pull/5553)
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* [Clarified 'ErrReservedValueInvalidated' error string](https://github.com/lightningnetwork/lnd/pull/5577)
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to explain that the error is triggered by a transaction that would deplete
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funds already reserved for potential future anchor channel closings (via
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CPFP) and that more information (e.g., specific sat amounts) can be found
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in the debug logs.
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# Misc
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* The direct use of certain syscalls in packages such as `bbolt` or `lnd`'s own
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`healthcheck` package made it impossible to import `lnd` code as a library
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into projects that are compiled to WASM binaries. [That problem was fixed by
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guarding those syscalls with build tags](https://github.com/lightningnetwork/lnd/pull/5526).
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# Code Health
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## Code cleanup, refactor, typo fixes
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* [Unused error check
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removed](https://github.com/lightningnetwork/lnd/pull/5537).
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* [Shorten Pull Request check list by referring to the CI checks that are
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in place](https://github.com/lightningnetwork/lnd/pull/5545).
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* [Added minor fixes to contribution guidelines](https://github.com/lightningnetwork/lnd/pull/5503).
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* [Fixed typo in `dest_custom_records` description comment](https://github.com/lightningnetwork/lnd/pull/5541).
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* [Bumped version of `github.com/miekg/dns` library to fix a Dependabot
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alert](https://github.com/lightningnetwork/lnd/pull/5576).
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* [Fixed timeout flakes in async payment benchmark tests](https://github.com/lightningnetwork/lnd/pull/5579).
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* [Fixed a missing import and git tag in the healthcheck package](https://github.com/lightningnetwork/lnd/pull/5582).
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* [Fixed a data race in payment unit test](https://github.com/lightningnetwork/lnd/pull/5573).
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* [Missing dots in cmd interface](https://github.com/lightningnetwork/lnd/pull/5535).
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## Database
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* [Ensure single writer for legacy
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code](https://github.com/lightningnetwork/lnd/pull/5547) when using etcd
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backend.
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* [Optimized payment sequence generation](https://github.com/lightningnetwork/lnd/pull/5514/)
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to make LNDs payment throughput (and latency) with better when using etcd.
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## Performance improvements
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* [Update MC store in blocks](https://github.com/lightningnetwork/lnd/pull/5515)
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to make payment throughput better when using etcd.
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# Contributors (Alphabetical Order)
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* ErikEk
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* Martin Habovstiak
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* Zero-1729
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* Oliver Gugger
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* xanoni
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* Yong Yu
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