# Changelog July 8, 2022

## Next.js 12.2

We've upgraded our `@clerk/nextjs` package to support Next.js 12.2, Make sure you're on version 3.7.1 or greater.

Thanks to the contributors: Peter Perlepes

## Emails w/ High Deliverability

We're testing out a new email flow. Our core verification emails are sent through Sendgrid, from _your domain_. Even though we follow all of the best practices, there are a few things we can't account for that still causes some verification/sign-in emails to go to spam.

For people having trouble, this new email flow should solve your problems:

- Emails are sent from Postmark.
- Emails are sent from `verifications@clerk.dev`
- Will only send OTP verifications, since these have historically had less deliverability issues.

If you're having issues, send us an email at `support@clerk.com` to enable.

Thanks to the contributors: Agis Anastasopoulos

## Sign in with Line

Allow your users to sign in via Line [https://line.me/en/](https://line.me/en)

Thanks to the contributors: Haris Chaniotakis

## Backend API updates

- [Custom Session Token](https://clerk.com/docs/reference/backend-api/tag/sessions/POST/sessions/%7Bsession_id%7D/tokens/%7Btemplate_name%7D) - Clerk automatically keeps session tokens alive, now you can customize what data goes into these tokens. Previously, this was only possible by creating a custom JWT template, and sending it to your backend manually.
- [Filter invitations by status](https://clerk.com/docs/reference/backend-api/tag/invitations/GET/invitations)

Thanks to the contributors: Giannis Katsanos, Agis Anastasopoulos