---
title: "Release Note: T-REX Engine - 1.64  "
url: "https://d9awyx7m9zmryg2.productfruits.help/en/article/release-note-t-rex-engine-1-64"
language: "en"
last_updated: "2026-10-20T14:27:27.245Z"
---

# Release Note: T-REX Engine - 1.64  

October 22 2026

**Subscription orders on API v2:** Subscription orders are now available on API v2, with dedicated endpoints for issuers and agents, and for investors. Issuers and agents can retrieve subscriptions and orders with filters, create orders on behalf of investors, and manage orders through dedicated actions: set price (for several orders at once), confirm payment, mint, refund and cancel. When an action requires your signature, you sign it on your side and submit the signed payload through the API, which then broadcasts it to the blockchain. Investors can view a token’s subscriptions, create and confirm their orders, and follow their orders and order details.

**Redemption orders on API v2:** Redemption orders are now available on API v2, with the same structure. Issuers and agents can retrieve all redemption orders for a token or for a given redemption, view order details, and create orders on behalf of investors. Investors can view the redemptions set up for a token, create redemption orders, and confirm or cancel them, one at a time or several at once. If an order has already been accepted, cancelling it sends a cancellation request to the issuer. Redemption order details include the holder’s identity and, for crypto payouts, the wallet addresses and transaction hash.

**API v1 compatibility:** API v1 endpoints remain available, so existing integrations keep working. Any future deprecation will be announced in advance.