v0.102.1

API breaking changes

• None.

Enhancements

• Return RLMErrorSchemaMismatch error rather than the more generic RLMErrorFail
  when a migration is required.
• Improve the performance of allocating instances of Object subclasses
  that have LinkingObjects properties.

Bugfixes

• RLMLinkingObjects properties declared in Swift subclasses of RLMObject
  now work correctly.
• Fix an assertion failure when deleting all objects of a type, inserting more
  objects, and then deleting some of the newly inserted objects within a single
  write transaction when there is an active notification block for a different
  object type which links to the objects being deleted.
• Fix crashes and/or incorrect results when querying over multiple levels of
  LinkingObjects properties.
• Fix opening read-only Realms on multiple threads at once.
• Fix a BadTransactLog exception when storing dates before the unix epoch (1970-01-01).