0.28.0

• Performance improvement: Faster search-tree traversal by dispatching
  on the database's record size to monomorphized node readers, replacing
  per-step branching on the record size.
• Performance improvement: Direct deserialization of scalars, sequences,
  maps, and structs through dedicated fast paths instead of routing
  through deserialize_any.
• Performance improvement: IPv4 and IPv6 lookups dispatch to dedicated
  paths, avoiding per-call address-kind checks on the hot path.
• Behavior change: Deserializing a database array into a tuple or
  tuple struct now returns a decoding error when the lengths do not
  match. Previously the mismatch was silently ignored.
• Fixed: A corrupt data pointer that would underflow during resolution
  now returns an InvalidDatabase error instead of panicking.