What is a New York constitutional convention?

Should New York hold a convention to revise the state constitution or not? The once-in-a-generation question will be put to voters on Election Day. If that is news to you, you're not alone. A majority of registered voters polled by Baruch College had never heard of or read anything about a constitutional convention. The last time New Yorkers voted to hold a "con con" was in 1965. A "yes" vote this time around would allow the public to elect delegates in 2018 to convene in Albany in 2019.