### 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