Comment by _pmf_

From the incident report at https://blog.cloudflare.com/incident-report-on-memory-leak-c... (not the article):

> About a year ago we decided that the Ragel-based parser had become too complex to maintain and we started to write a new parser, named cf-html, to replace it. This streaming parser works correctly with HTML5 and is much, much faster and easier to maintain.

I'd assume that at this point, customers would like to have a little more than a vague promise.