> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dualentry.com/llms.txt
> Use this file to discover all available pages before exploring further.

# API Changelog

> Changelog comparing DualEntry Public API V1 and V2, including new resources, breaking changes, deprecated endpoints, and migration guidance.

## V2 (current)

### New resources

* **Depreciation Books** (`/v2/depreciation-books/`) -- Read-only endpoints to discover available depreciation books (BOOK, FEDERAL, AMT, STATE\_\*). Use book codes when creating or updating fixed assets with multi-book depreciation schedules.
* **Intercompany Journal Entries** (`/v2/intercompany-journal-entries/`) -- Create and manage journal entries that span multiple companies within the same organization, with per-line company assignment.

### Changed resources

* **Fixed Assets** (`/v2/fixed-assets/`) -- V2 replaces the flattened single-book depreciation fields with a `depreciation_schedules[]` array that supports multiple books per asset. V1 fixed assets continue to work with BOOK-only depreciation.

### Migrating from V1 to V2

All V1 endpoints are available at `/public/v2/` with identical behavior unless listed above. To migrate:

1. Change your base URL from `/public/v1/` to `/public/v2/`
2. If you use fixed assets, update your integration to handle the new `depreciation_schedules` array format
3. All other endpoints work identically between V1 and V2

## V1

Initial public API release. All accounting resources available at `/public/v1/`.