I upgraded to 1.6.9, and noticed in my pre blocks that EECore is interpreting my text as smileys. I did a test post;
pre square bracket block :: 😊 :roll: :lol: 😊 😡
pre angled bracket block :: 😊 :roll: :lol: 😊 😡
code square bracket block :: :blush: :roll: :lol: :blush: :rage:
\[pre\] and \[code\] are not interpreted but <pre> is, and it should not be.
I dont know if this EE allows angled pre blocks in the forum, buy my EE install allows all html.
I would expect nothing inside a <pre> block to be touched.
I have a test post on my site;
test post