Regarding Azure Cosmos DB BulkExecutor library for Java

[ac4922]

I want to perform bulk update on cosmos db using cosmos db java sdk. While reading the docs, I came across the Azure Cosmos DB Bulk Executor library - https://github.com/Azure/azure-cosmosdb-bulkexecutor-java-getting-started

But the sdk it uses -
<groupId>com.microsoft.azure</groupId>
<artifactId>azure-documentdb</artifactId>

While, I find all the latest cosmos sdk under -
<groupId>com.azure</groupId>
<artifactId>azure-cosmos</artifactId>

Could you please help me with these queries:

1. If the com.microsoft.azure sdk is still valid for use and is recommended?
2. Is there a similar approach of performing bulk execution using sdk under "com.azure" group id
3. What would be the suggested approach for updating ( ~200k records) using azure java sdk ?

TIA!