/**
 * SDK version, follows semver. Bump on every release.
 * Transmitted as X-SDK-Version header on WebSocket handshake and token exchange.
 *
 * Versioning rules:
 *   MAJOR, breaking wire-format or API change (e.g. new proto field required by server)
 *   MINOR, additive feature (e.g. multi-device payloads, new call event type)
 *   PATCH, bug-fix / perf improvement with no wire or API change
 */
export declare const SDK_VERSION = "0.45.0";
/**
 * Binary encrypted-payload format version.
 * Included as the first byte of every encrypted payload so receivers can
 * select the correct decryption path if the format ever changes.
 */
export declare const PAYLOAD_FORMAT_VERSION = 1;
/**
 * Protobuf wire protocol version.
 * Increment when adding required proto fields or changing frame semantics.
 * The server advertises its supported range via GET /api/info.
 */
export declare const PROTOCOL_VERSION = 8;