Check for content after the body tag and before the skip links - SWU_2.2.6.
Add PWGSC open data checks (CSV header row)
Change testcase identifiers to include technology type (e.g. txt, csv)
Add checks for open data API URLs (JSON, XML)
Add checks for open data API URLs (JSON, XML)
Report URLs that use Web Analytics (google, piwik) in HTML features tab
Add checks for HTML Data for Web Interoperability.

Check for RDFa syntax and schema.org vocabulary
Don't try to get absolute URL from relative URLs in direct HTML input mode
Updates to WCAG 2.0 checks

Don't report error if there is a onclick or onkeypress attribute on a
tag if there is a focusable item inside a block tag - WCAG_2.0-F42.
Add <button> tag to list of tags that are allowed event handlers -
WCAG_2.0-F42.
Report WCAG_2.0-G131 for missing label and legend content.
Check for styled text (e.g. bold) that looks like a heading -
WCAG_2.0-F2.
Check for missing table headers at the end of the table. This allows for
header id definitions to come after a reference - WCAG_2.0-H43.
Version 4.1.0
Add fields to GUI to enter open data API URLs
Add checks for Web Analytics (reported in CLF tab)

Check for not anonymizing IP addresses in Google analytics. - WA_ID
Correct typo in comment