---
title: "Change Log"
slug: "change-log-on-demand-spec"
updated: 2023-11-22T23:28:51Z
published: 2023-11-22T23:28:51Z
canonical: "help.tritondigital.com/change-log-on-demand-spec"
---

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

# Change Log

#### On-Demand Specification

| **Date** | **Change** |
| --- | --- |
| 2023-11-22 | - Clarifications to HTTP Endpoint description in [Ad Request](/user/docs/ad-request). |
| 2022-07-26 | - Correction to the description of iab-categories-to-exclude parameter: *Blocking a tier-1 category **does not block** tier-2 under it (e.g., blocking IAB1 does not block IAB1-1 to IAB1-7). To block a category's tier-2, each tier-2 category should be blocked individually.* |
| 2022-07-14 | - The Ad Response for TAP is no longer a VAST wrapper file; similar to Yield-Op, it is now a VAST inline file. |