If you're wondering what the big deal is since eight states have already legalized weed (Alaska, California, Colorado, Maine, Massachusetts, Nevada, Oregon, Washington, plus Washington, DC, if you're keeping track), the difference is those were voter-approved ballot measures. Vermont is the first state to pass a weed bill via a bunch of politiians talking in a large room. This is great news for the legalization movement for obvious reasons, but it's also a sign that lawmakers feel more comfortable voicing their true opinions on the issue.
While this is progress, it comes in the wake of a big hit to the pot-smoking community/people with sensible views on drug policy: Last Wednesday, the Trump Administration announced it would no longer be offering a legal shelter for state-sanctioned marijuana sales and the businesses in that industry, as was the policy during the Obama era. Decidedly unchill.