PowerSync 1.2.0

• Improved CrudBatch and CrudTransaction complete function extensions. Developers no longer need to specify nil as an argument for writeCheckpoint when calling CrudBatch.complete. The base complete functions still accept an optional writeCheckpoint argument if developers use custom write checkpoints.

guard let finalBatch = try await powersync.getCrudBatch(limit: 100) else {
  return nil
}
- try await batch.complete(writeCheckpoint: nil)
+ try await batch.complete()

• Fix reported progress around compactions / defrags on the sync service.
• Use version 0.4.0 of the PowerSync core extension, which improves sync performance.
• Add a new sync client implementation written in Rust instead of Kotlin. While this client is still
  experimental, we intend to make it the default in the future. The main benefit of this client is
  faster sync performance, but upcoming features will also require this client. We encourage
  interested users to try it out by opting in to experimental APIs and passing options when
  connecting:

  @_spi(PowerSyncExperimental) import PowerSync
  
  try await db.connect(connector: connector, options: ConnectOptions(
      newClientImplementation: true,
  ))

  Switching between the clients can be done at any time without compatibility issues. If you run
  into issues with the new client, please reach out to us!
• In addition to HTTP streams, the Swift SDK also supports fetching sync instructions from the
  PowerSync service in a binary format. This requires the new sync client, and can then be enabled
  on the sync options:

  @_spi(PowerSyncExperimental) import PowerSync
  
  try await db.connect(connector: connector, options: ConnectOptions(
      newClientImplementation: true,
      connectionMethod: .webSocket,
  ))