ElementsProject/lightning v0.9.1 on GitHub

We're pleased to announce the 0.9.1 release of c-lightning, named by Jon Griffiths.

This is a significant release with major bugfixes to multi-part payments and various notable speedups and improvements across the board.

Did you know: c-lightning deprecates features with 6 months warning, and you can set allow-deprecated-apis=false to test?

Highlights for Users

The sending of multi-part payments has seen a lot of work, covering more corner cases and generally becoming much more robust.
New official plugins create commands multiwithdraw and multifundchannel to easily produce a single transaction which does more than one thing; these use the PSBT plumbing created for v0.9.0.
We produce far less log spam when log-level is set to debug, so if you've avoided setting that before, I recommend trying now.
Startup checks that bitcoind is the correct version, and relays transactions
Builtin plugins are now nominated as important, and you can nominate others as important too. The daemon will stop if these fail.
You can now build a postgres-only installation, without sqlite3.

Our invoices now supply more than one routehint if we think you'll need to use multi-part-payments.
We prune channels which are not updated in both directions every 2 weeks.
Our default CTLV expiry has increased to 34 blocks, or 18 if we're the final node, as per updated specification recommendations (lightning/bolts#785)

PSBT APIs fleshed out with utxopsbt and locktime arguments.
Plugins can easily mark commands and options deprecated.
The new channel_state_changed notification lets plugins easily track channel behavior.

Thanks to everyone for their contributions and bug reports; please keep them coming.

Since 0.9.0, we've had 391 commits commits from 15 different authors.
A special thanks goes to the 3 first time contributors:

Cheers,
Christian, Rusty, ZmnSCPxj, and Lisa