Release v10.12.0 · realm/realm-swift

Object.observe() and RealmCollection.observe() now include an optional
keyPaths parameter which filters change notifications to those only
occurring on the provided key path or key paths. See method documentation
for extended detail on filtering behavior.
ObservedResults<ResultsType> now includes an optional keyPaths parameter
which filters change notifications to those only occurring on the provided
key path or key paths. ex) @ObservedResults(MyObject.self, keyPaths: ["myList.property"])
Add two new property wrappers for opening a Realm asynchronously in a
SwiftUI View:
- AsyncOpen is a property wrapper that initiates Realm.asyncOpen
  for the current user, notifying the view when there is a change in Realm asyncOpen state.
- AutoOpen behaves similarly to AsyncOpen, but in the case of no internet
  connection this will return an opened realm.
Add EnvironmentValues.partitionValue. This value can be injected into any view using one of
our new property wrappers AsyncOpen and AutoOpen:
MyView().environment(\.partitionValue, "partitionValue").
Shift more of the work done when first initializing a collection notifier to
the background worker thread rather than doing it on the main thread.

configuration(partitionValue: AnyBSON) would always set a nil partition value
for the user sync configuration.
Decoding a @Persisted property would incorrectly throw a DecodingError.keyNotFound
for an optional property if the key is missing.
(Cocoa #7358, since v10.10.0)
Fixed a symlink which prevented Realm from building on case sensitive file systems.
(#7344, since v10.8.0)
Removing a change callback from a Results would sometimes block the calling
thread while the query for that Results was running on the background worker
thread (since v10.11.0).
Object observers did not handle the object being deleted properly, which
could result in assertion failures mentioning "m_table" in ObjectNotifier
(Core #4824, since v10.11.0).
Fixed a crash when delivering notifications over a nested hierarchy of lists
of Mixed that contain links. (Core #4803, since v10.8.0)
Fixed a crash when an object which is linked to by a Mixed is deleted via
sync. (Core #4828, since v10.8.0)
Fixed a rare crash when setting a mixed link for the first time which would
trigger if the link was to the same table and adding the backlink column
caused a BPNode split. (Core #4828, since v10.8.0)

Realm Studio: 11.0.0 or later.
APIs are backwards compatible with all previous releases in the 10.x.y series.
Carthage release for Swift is built with Xcode 12.5.1.
CocoaPods: 1.10 or later.
Xcode: 12.2-13.0 beta 4. On iOS Xcode 13 beta 2 is the latest supported
version due to betas 3 and 4 having a broken Combine.framework.

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