Frankly, Github did a very poor job at communication this breaking change.<p>I only recently discovered that most of my post got broken.<p>Apparently it&#x27;s no longer legit to use &quot;#Title&quot;, you need to &quot;# Title&quot; (and god knows what else).<p>Linking is broken too - in Jekyll 2 there was no difference if a URL ended in &quot;&#x2F;&quot; or not - you were just taken to the page, now this is a massive, although fixable pain (see <a href="https:&#x2F;&#x2F;github.com&#x2F;jekyll&#x2F;jekyll&#x2F;issues&#x2F;4440" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;jekyll&#x2F;jekyll&#x2F;issues&#x2F;4440</a>)<p>As a result my site experienced 500% drop in organic search referrals from Google.<p>I got no single email from then announcing this change. Very unhappy with how github handled it.