Labour has just released this statement from Jeremy Corbyn. This is what he told the shadow cabinet this morning.
I have consistently said that we are ready for an election and our support is subject to no-deal Brexit being off the table.
We have now heard from the EU that the extension of article 50 to 31 January has been confirmed, so for the next three months, our condition of taking no deal off the table has now been met.
We will now launch the most ambitious and radical campaign for real change our country has ever seen.
In this statement Corbyn is not saying anything about the conditions he flagged up yesterday for Labour supporting an early election. That implies the party is not insisting on firm red lines, and that it will support the bill – meaning the early election is definitely on.