> For the complete documentation index, see [llms.txt](https://docs.kaiko.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.kaiko.com/whats-new/2025/september-2025.md).

# September 2025

2025-09-26

### Mapping Update

We've identified some mapping discrepancies around instruments with the asset code NEIRO. This appears to originate from different exchanges using this same code to refer to at least 3 distinct assets.

The mapping in our reference data will be updated as outlined below:

`NEIROCTO` : First NEIRO on ETH\
`1NEIRO` : NEIRO ETH\
`NEIRO` : NEIRO

2025-09-23

### Mapping Update

* Instruments listed below are updated to use the base asset code `ONOMY`
  * CoinEx spot `nom-btc` becomes `onomy-btc`
  * Bitfinex spot `nom-usd` becomes `onomy-usd` & `nom-usdt` becomes `onomy-usdt`
  * KuCoin spot `nom-usdt`
  * MEXC spot `nom-usdt`


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