SAML SSO cookies
Before, SAML sign-in could fail silently on sites using stricter cookie settings, since the temporary cookie used during the SAML handshake was not sent back on the IdP's final request. Now, that cookie is always sent correctly, so SAML SSO completes reliably regardless of the site's cookie configuration.
Editor text formatting
Previously, text pasted from Word or Google Docs could appear italicized when an author opened a page to edit it, even though the published page looked normal. Now, pasted text displays the same in the editor as it does on the published page.