Created ticket #25266 on Core Trac:
wp_unschedule_event should apply filter to changes

Created ticket #25178 on Core Trac:
multisite network admin to delete user attempts to load millions of users ...

Created ticket #24922 on Core Trac:
Please do not hardcode network upgrade to 5 sites at a time.

Created ticket #24750 on Core Trac:
Pagination control has disappeared for Users in Network Admin

Created ticket #22040 on Core Trac:
wp_dashboard_recent_comments queries do not skip comment_approved=spam

Created ticket #21668 on Core Trac:
WordPress still does not save jpeg as progressive jpeg

Created ticket #19663 on Core Trac:
auto-draft garbage collection should be done via cron, not when starting ...

Created ticket #19068 on Core Trac:
admin comment search never resets URL, grows infinitely

Created ticket #18659 on Core Trac:
editors should not have to enter military time for posts

Created ticket #18618 on Core Trac:
WordPress still relies on HTTP_REFERER for redirects which can be invalid

Created ticket #18532 on Core Trac:
resized image dimensions incorrectly floored instead of rounded

Created ticket #10469 on Core Trac:
use of SQL_CALC_FOUND_ROWS needs to be eliminated

Mentioned in [8808] on Core SVN:
HttpOnly for PHP < 5.2.

Mentioned in [8619] on Core SVN:
Add syndication frequency recommendations to rss2 feeds.