ALT Bolt 12 offers several improvements and additional features over Bolt 11. Some of the main differences between Bolt 11 and Bolt 12 include: Bolt 12 uses smaller and more efficient QR codes, which can be easily shared and reused. This is in contrast to Bolt 11 invoices, which can only be used once and are insecure if someone else tries to reuse them. Bolt 12 supports onion messages, which allow users to send messages over the Lightning Network without the need for a payment. This is useful for sending messages that do not require a payment, such as requests for refunds or information about a vendor. Bolt 12 uses Schnorr signatures throughout, which make implementing multisig Lightning nodes transparently possible in the future. This allows for more secure and flexible multisig transactions on the Lightning Network. Bolt 12 uses x-only public keys and the same signature scheme as Taproot, which are more efficient and shorter than the keys used in Bolt 11. Bolt 12 offers support for paye