Release v0.42.0

Breaking changes

• nostr: rework nip46 module (Yuki Kishimoto at #865)
• pool: drop support for deprecated negentropy protocol (Yuki Kishimoto at #853)
• connect: encrypt NIP-46 events with NIP-44 instead of NIP-04 (reyamir at #862)
• connect: drop support for NIP-46 event decryption with NIP-04 (Yuki Kishimoto at #864)

Changed

• Bump lru from 0.13.0 to 0.14.0 (Yuki Kishimoto)
• nostr: rename nip22::Comment to nip22::CommentTarget (Yuki Kishimoto at #882)

Added

• nostr: add UnsignedEvent::id method (Yuki Kishimoto at #868)
• nostr: add TagKind::single_letter constructor (awiteb at #871)
• nostr: add NIP-73 blockchain address and transaction (Thomas Profelt at #879)
• blossom: add new crate with Blossom support (Daniel D’Aquino at #838)
• mls-storage: add new crate with traits and types for mls storage implementations (JeffG at #836)
• mls-memory-storage: add an in-memory implementation for MLS (JeffG at #839)
• mls-sqlite-storage: a sqlite implementation for MLS (JeffG at #842)
• mls: add new crate for implementing MLS messaging (JeffG at #843)
• pool: add relay monitor (Yuki Kishimoto at #851)
• sdk: add Options::pool (Yuki Kishimoto)
• relay-builder: add support for NIP-70 protected events (Yuki Kishimoto at #875)

Fixed

• nostr: handle A and E standard tags (awiteb at #870)
• nostr: fix nip22::extract_root to handle uppercase tags when is_root is true (awiteb at #876)
• pool: fix wrong conversion from u8 to RelayStatus (Yuki Kishimoto at #878)

Deprecated

• sdk: deprecate Options::notification_channel_size (Yuki Kishimoto)

Full changelog: https://rust-nostr.org/changelog