{f:if( condition: link, then: '{title}', else: title )}

Published: {blogPost.lastUpdated -> f:format.date(format: 'Y-m-d')}, Updated: {blogPost.SYS_LASTCHANGED -> f:format.date(format: 'Y-m-d')}

Tested with TYPO3: {version.data.title}{f:if(condition: '!{i.isLast}', then: ',')}