---
title: "Changes to Year Pillars × 10"
method: POST
path: "/bazi/year-pillar-decade"
---

# Changes to Year Pillars × 10

`POST /bazi/year-pillar-decade`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 2 of 14 revisions.

- **2026-08-24** `8ab5a768b521` — 5 info
- **2026-08-22** `5a17388652f3` — 1 breaking

## Changes

- **2026-08-24** `8ab5a768b521` — 5 info
  - added the optional property `data/decade/items/element/cycling` to the response with the `200` status
  - added the optional property `data/decade/items/element/fixed` to the response with the `200` status
  - added the optional property `data/decade/items/element/yin` to the response with the `200` status
  - added the optional property `data/disclaimer` to the response with the `200` status
  - added the optional property `data/startYear` to the response with the `200` status
- **2026-08-22** `5a17388652f3` — 1 breaking
  - added the new required request property `startYear`

---

[Operation](https://skmtc.dev/astroway/apis/astroway-calculation-api/docs/bazi/year-pillar-decade/post.md) · [API](https://skmtc.dev/astroway/apis/astroway-calculation-api.md) · [Page](https://skmtc.dev/astroway/apis/astroway-calculation-api/changes/bazi/year-pillar-decade/post)