# Release notes for WeBWorK 2.16

## New Features

• Essay grader features
• MathJax 3
• Should we advertise MathQuill here, even though it was in 2.15?
• ADD_JS_FILE and ADD_CSS_FILE
• Improved hardcopy of PGML problems
• TikZ images in problems.

• Revised "WeBWorK errors" page code + error.log records
• LTI Improvements
• Fix applets in gateway quizzes

• JQuery is no longer packaged with WeBWorK. The recommended approach is to install via npm:
1. Install npm from your package manager (Ubuntu: apt install npm CentOS/RHEL: yum install npm).
2. Use npm to install JQuery:
  > cd /opt/webwork/webwork2/htdocs
> npm install

• WW 2.16 requires MathJax v3. Previous versions of WW required MathJax v2, so if you are upgrading an existing WW installation you will need to switch to MathJax v3:
  > cd /opt/webwork/MathJax
> git checkout origin/master

• The following perl packages will need to be installed
• There have been some tweaks to localOverrides.conf.dist. If you have not done any customization to localOverrides.conf then you should consider replacing it with a new copy of localOverrides.conf.dist. If you have made customizations in localOverrides.conf, you should consider synchronizing them with the latest version of localOverrides.conf.dist.
• WeBWorK is currently not compatible with recent versions of the SQL::Abstract package, so avoid upgrading past version 1.8. WW is known to work with versions up to 1.87.

## Call for Translators

Some text has changed in the WeBWorK interface, so there are new entries that need to be translated into other languages.