Chat SDK now lets you control what happens when a new message arrives before a previous one finishes processing, with support for configurable concurrency strategies across all adapters.

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Chat SDK has added a new `concurrency` option to the Chat class, allowing developers to control behavior when a new message arrives before a previous one finishes processing. Four strategies are available: `drop` (default, discards new messages), `queue` (processes latest message after handler finishes), `debounce` (waits for a pause and processes only the final message), and `concurrent` (processes every message immediately with no locking). The `queue` strategy also supports configurable options like `maxQueueSize`, `onQueueFull`, and `queueEntryTtlMs`.

Chat SDK now supports concurrent message handling