How to disable Crayon Syntax Highlighter for old posts?

If you’d like Crayon to ignore old posts, see Settings > Misc and choose a date. This was added in v2.6.9.

What is the date format?

MM-DD-YYYY

I tried the format above and it didn’t work.

If you’re using Chrome the html5 date field will have a calendar dropdown. Otherwise, you should use the ISO convention YYYY-MM-DD or MM/DD/YYYY. Using a forward slash assumes the US format.

Thank you.