We'd like to announce the 0.12.1 release of core-lightning, named by @adi2011.

This is a point release with a few bug fixes and build improvements: it's a recommended upgrade from 0.12.0, with no new features.

For a list of differences, please see v0.12.0..v0.12.1.

Highlights for Users

• Now with fewer bugs!
• Topology plugin could crash when it sees duplicate private channel announcements.
• getinfo no longer displays unannounced addresses; shows correct port for discovered IP addresses.
• Newly created channels sometimes were inexplicably disconnected, this has been fixed!

Highlights for the Network

• Bad gossip store reads and gossip propagation fixed.

Highlights for Developers

• Reliance on mistune and mrkd python libraries has been removed.

Since v0.12.0 we've had 26 commits from 5 different contributors over 29 days.

~ @niftynei, Christian, and Rusty

New feature

• Add support for updating POS app through Greenfield API (#3458) @bolatovumar
• Allow specifing fee block target for onchain payout processor (#4065) @Kukks

Improvement

• Make POS and Crowdfund system plugins (#3987) @dennisreimann
• Enhance export function for invoices (#4060) @HamroRamro
• Create dynamic manifest for pos apps (#4064) @Kukks
• Update invoice amount description in Swagger template @bolatovumar
• Improve payout processors description (#4109) @woutersamaey
• Set explicit cursor style property on pay button with custom text (#4107) @bolatovumar
• Use mempool space as default block explorer (#4100) @junderw
• Improve Lightning Node setup examples (#4033) @dennisreimann
• Refactor QR functionality and improve wallet import support (#4091) @dennisreimann
• Sanitize filename for downloaded files (#4117) @dennisreimann
• Improve PayButton error page (#4129) @dennisreimann
• Consistent switch UI on Create Wallet views (#4135) @dennisreimann
• Point Of Sale: Custom amount disabled by default (#4126) @daviogg
• Improve "Advanced Settings" button (#4140) @dennisreimann
• Improve currency selection (#4155) @dennisreimann
• Add official Telegram link to footer (#4160) @daviogg
• Minor updates to security issues and bug reports doc (#4161) @Bangalisch

Bug fixes

• Fix app-related API docs @bolatovumar
• Fix missing route hints option for LNURL invoices (#4077) @dennisreimann
• Scale-down PoS item image (#4076) @prusnak
• Ensure apps can be deleted through UI (#4080) @bolatovumar
• Make sure end date is after start date in Crowdfund app (#4084) @bolatovumar
• Show iframe when showing invoice in Shopify plugin (#4106) @bolatovumar
• LNURL max value is set to min when item type is minmum (#4115) @Kukks
• Fix Monero and Zcash nav extensions (#4124) @dennisreimann
• Add missing store ID to invoice links (#4128) @bolatovumar
• Fix pagination of wallet's transactions (#4150) @dennisreimann @NicolasDorier
• Remove redundant exception status from invoice state label (#4151) @bolatovumar
• Fix Store Settings nav highlight (#4138) @daviogg
• Fix crash on migration from old install (#4162) @NicolasDorier