🔖 zvariant 4.0.0

zvariant 4.0 release notes

New API breaking release. A lot of changes in this release:

• ✨ New toplevel (de)serialization API that ensures file descriptors are handled safely.
• ✨ Option<T> now de/serializable using 0 or 1 item array encoding.
• ✨ from_slice* now also return number of bytes parsed.
• 💥 Value API changes:
  • 💥 to_owned now fallible and renamed to try_to_owned.
  • 💥 Clone impl replaced by fallible try_clone method.
  • 💥 Many conversions and conversion requirements now fallible as a result of the last two changes.
  • 🚸 🩹 Array::get and Maybe::get's return values are now fixed.
  • 👽️ Switched from byteorder to endi crate for endian handling and indication.
  • 🐛 Value::downcast_ref now returns terget value instead of reference to it.
• 🚩 Cargo features:
  • "gvariant" no longer a default feature.
  • New: "option-as-array" feature which enables ser/de of Option<T> as an array of 0 or 1 elements.
• 💥 Signature changes:
  • ✨ New Signature::n_complete_types returns the number of complete types in a Signature.
  • 🚸 Signatures are now equal regardless of D-Bus marshalling omitting outer parentheses.
  • ✨ TryFrom<String> for OwnedSignature & TryFrom<Cow<str> for Signature impls.
• ⬆️ Dependencies:
• ⬆️ MSRV is now 1.75
• ⬆️ Upgrade glib to 0.18
• ✨ Furthermore:
  • 🐛 Dicts entries are now consistent in order which makes Dicts comparison possible.
  • 🐛 Array::get now returns a Value at an index instead of a slice with the value.
  • 🚸 Concise Str Debug impl

And many more.