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- [fixed] Fixed a regression in the Firebase iOS SDK release 4.11.0 that could
cause `getDocument()` requests made while offline to be delayed by up to 10
seconds (rather than returning from cache immediately).
+- [feature] Added a new `Timestamp` class to represent timestamp fields,
+ currently supporting up to microsecond precision. It can be passed to API
+ methods anywhere a system Date is currently accepted. To make
+ `DocumentSnapshot`s read timestamp fields back as `Timestamp`s instead of
+ Dates, you can set the newly added property `areTimestampsInSnapshotsEnabled`
+ in `FirestoreSettings` to `true`. Note that the current behavior
+ (`DocumentSnapshot`s returning system Dates) will be removed in a future
+ release. Using `Timestamp`s avoids rounding errors (system Date is stored as
+ a floating-point value, so the value read back from a `DocumentSnapshot`
+ might be slightly different from the value written).
# v0.10.4
- [changed] If the SDK's attempt to connect to the Cloud Firestore backend