# Version 4.2.87

> Change logs general updates and new features (Change logs)

- Page: https://dashboard.nizu.io/knowledge_base/view/398-version-4-2-87
- Part of: [Knowledge base](https://dashboard.nizu.io/knowledge_base/llms.txt) on NIZU — https://dashboard.nizu.io/llms.txt
- Updated: 2026-10-25T11:50:03Z

Change Log

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| ## 4.2.87 | #### 07-10-2026 |
| --- | --- |

**New**

- NizuEvents: a new API keys page. Give a key to another system (your app, a platform, an automation) so it can add metered items to your clients' subscriptions. They are charged with the subscription at the end of its cycle. Each item can carry your own reference, so sending it twice never charges it twice, and every call is recorded in the Delivery Logs.
- Payment methods: the Mollie settings now include a step-by-step guide to adding metered items from another system: where to get a key, what to send, colour-coded code examples you can copy with one click, and what each answer means. It follows the light and dark theme.

**Updates**

- Metered items: items added from Sales → Metered items and items sent by another system now follow exactly the same rules.

**Fix**

-

**Deprecated**

-