---
title: Document Change Log
slug: medhistory-populations-file/guide/document-change-log
docTags: 
createdAt: 2026-06-10T15:14:54.730Z
---

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## 2026-08-17

| **Section Title**                                 | **Change Description**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
| ------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| [Process Overview](docId\:fcgNj4Vj7sDm-mYQeCt6b)  | - Added a new **Patient File Load Maintenance** section describing how enrolled patients are uniquely identified using the **PatientHashID**, generated from Patient First Name, Patient Last Name, Date of Birth, Patient ID, and NPI.
- Within **Patient File Load Maintenance** section, the following subtopics were also added:
  - **Prescription Notifications Recipient and Patient Identity** 
  - **Updating a Previously Enrolled Patient**
  - **Enrolling or Adding a New Patient or Notification Recipient**
  - **Deleting a Previously Enrolled Patient**  |
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## 2026-08-06

| **Section Title** | **Change Description**                   |
| ----------------- | ---------------------------------------- |
| N/A               | N/A - Developer Portal - initial release |
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