> For the complete documentation index, see [llms.txt](https://resources.unizin.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://resources.unizin.org/products/content/unizin-engage/release-notes/2016-09-22-engage-2.18.0-maintenance-release.md).

# 2.18.0

## Maintenance Release

| Version      | 2.18.0     |
| ------------ | ---------- |
| Release Date | 2016-09-22 |

## Key Features

This release was primarily focused on resolving issues that impacted a number of users.

## Details

Changes are as follows:

#### **Instructor Uploads - Table of Contents**

Materials uploaded from Instructors will now have a table of contents displayed. This functionality was impacted in a previous release but has been corrected. This change is retroactive: any materials that were uploaded previously will now show their ToC.

#### **Instructor Uploads - Missing placeholders**

When an instructor uploads material, a placeholder is included to show that the material is being rendered for display in Engage. That placeholder was not showing due to a recent release and the issue has been corrected.

#### **Data Storage and Loading Optimization**

The method used to store data in a user's browser has been modified to significantly reduce the size of the data stored. API calls for instructors have been optimized to decrease loading time.

#### **Gravatars - Always load over HTTPS**

An issue with loading Gravatars over HTTP caused some browsers to display a broken link image. Gravatars are now loaded over HTTPS and will display properly in all browsers.

## Known Issues

None.