> For the complete documentation index, see [llms.txt](https://changelog.doku.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://changelog.doku.com/september-2026.md).

# SEPTEMBER 2026

- [Introducing DOKU by Antom](https://changelog.doku.com/september-2026/introducing-doku-by-antom.md): Effective Date: 24 September 2026
- [Mobile Checkout SDK](https://changelog.doku.com/september-2026/mobile-checkout-sdk.md): Effective Date: 1 September 2026
- [Sub Account V2 - Unified Ledger](https://changelog.doku.com/september-2026/sub-account-v2-unified-ledger.md): Effective Date: 1 September 2026