---
title: Release notes · Cloudflare Workers KV docs
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lastUpdated: 2025-03-11T16:39:16.000Z
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## 2024-11-14

**Workers KV REST API bulk operations provide granular errors**

The REST API endpoints for bulk operations ([write](https://developers.cloudflare.com/api/resources/kv/subresources/namespaces/methods/bulk_update/), [delete](https://developers.cloudflare.com/api/resources/kv/subresources/namespaces/methods/bulk_delete/)) now return the keys of operations that failed during the bulk operation. The updated response bodies are documented in the [REST API documentation](https://developers.cloudflare.com/api/resources/kv/subresources/namespaces/methods/list/) and contain the following information in the `result` field:

```
{
  "successful_key_count": number,
  "unsuccessful_keys": string[]
}
```

The unsuccessful keys are an array of keys that were not written successfully to all storage backends and therefore should be retried.

## 2024-08-08

**New KV Analytics API**

Workers KV now has a new [metrics dashboard](https://developers.cloudflare.com/kv/observability/metrics-analytics/#view-metrics-in-the-dashboard) and [analytics API](https://developers.cloudflare.com/kv/observability/metrics-analytics/#query-via-the-graphql-api) that leverages the [GraphQL Analytics API](https://developers.cloudflare.com/analytics/graphql-api/) used by many other Cloudflare products. The new analytics API provides per-account and per-namespace metrics for both operations and storage, including latency metrics for read and write operations to Workers KV.

The legacy Workers KV [analytics REST API](https://developers.cloudflare.com/api/resources/kv/subresources/namespaces/subresources/analytics/methods/list/) will be turned off as of January 31st, 2025. Developers using this API will receive a series of email notifications prior to the shutdown of the legacy API.
