Web push

FCM changes in push notifications

Last updated -
June 10, 2026
Author photo
Aleksandra Kozioł
2 min

Google has just announced changes in FCM (Firebase Cloud Messaging), bringing higher security and better performance. What does it mean for push notifications services?

FCM and push notifications

FCM (Firebase Cloud Messaging) is a cross-platform messaging solution created by Google. it's a part of their Firebase set of tools for websites and online services. FCM allows you to send push messages across platforms and operating systems, like Android and iOS. 

Developers integrate FCM into their applications using the provided SDKs and APIs. These SDKs handle the complexities of sending messages to different platforms and devices, allowing developers to focus on creating engaging user experiences.

Changes in FCM API

Firebase announced the deprecation of legacy Firebase Cloud Messaging APIs. It's the beginning of a process that will end with their total termination in June 2024. Among the affected APIs there are:

Server API

  • Legacy HTTP Protocol
  • Legacy XMPP Protocol
  • Instance ID Server APIs
  • Device Management API
  • Upstream Messaging via XMPP
  • Batch Send API

Firebase Admin SDK API

  • sendToDevice()
  • sendToDeviceGroup()
  • sendAll()/sendAllAsync()/send_all()/sendMulticast()/SendMulticastAsync()/send_multicast()

Client SDK

  • GCM SDK
  • JS SDKs (older than v. 7.0.0.0 from 2019)

The apps using old APIs have a year to switch to new HTTP v1 API to get:

  • continuous support
  • better safety
  • efficient tools to customizing cross-platform messages
  • extendable and future-proof for new client platform versions

Read more on the Firebase website.

FCM and PushPushGo

With the Firebase roadmap officially declared, we'll be moving our old endpoints to the new FCM API version to prepare everything for the upcoming FCM legacy API termination. 

We're preparing a roadmap for Q4 2023/Q1 2024 to organize everything for our mobile push clients and those using their own FCM provider. We'll prepare suitable instructions for everybody in time for the changes.

if you want to learn more about the changes and our plans, contact us at hello@pushpushgo.com

Aleksandra Kozioł
Content Specialist @PushPushGo

Editor and writer. She is interested in media and new technologies. 

Also on PushPushGo blog

Web push

40+ Push Notification Examples for Ecommerce, Media, SaaS and Apps

A practical collection of 40+ push notification examples for ecommerce, media, SaaS, mobile apps and transactional messages. The article shows how to create more effective notifications by focusing on the right timing, audience, message and call to action, with real examples you can easily adapt to your own campaigns.
August 17, 2026
16 min
Online marketing inisghts

Cart abandonment email best practices: 12 ways to recover more sales

Learn abandoned cart email best practices that help ecommerce brands recover lost sales with stronger timing, content, offers and cart recovery strategies.
July 30, 2026
23 min
Online marketing inisghts
Web push
Mobile push

Push notification strategy: build yours for 2026

Learn how to build a push notification strategy that brings users back, improves retention, and supports sales without annoying your audience.
May 28, 2026
25 min

Start your free trial

Web push | Mobile push | Transactional notifications
Onsite notifications | Pop-up | In-app | WhatsApp channels
Start a 14-day trial!
Mountains
Written by
Alec Whitten
Published on
17 January 2022

Introduction

Mi tincidunt elit, id quisque ligula ac diam, amet. Vel etiam suspendisse morbi eleifend faucibus eget vestibulum felis. Dictum quis montes, sit sit. Tellus aliquam enim urna, etiam. Mauris posuere vulputate arcu amet, vitae nisi, tellus tincidunt. At feugiat sapien varius id.

Eget quis mi enim, leo lacinia pharetra, semper. Eget in volutpat mollis at volutpat lectus velit, sed auctor. Porttitor fames arcu quis fusce augue enim. Quis at habitant diam at. Suscipit tristique risus, at donec. In turpis vel et quam imperdiet. Ipsum molestie aliquet sodales id est ac volutpat.

Office setting
Image caption goes here
Dolor enim eu tortor urna sed duis nulla. Aliquam vestibulum, nulla odio nisl vitae. In aliquet pellentesque aenean hac vestibulum turpis mi bibendum diam. Tempor integer aliquam in vitae malesuada fringilla.

Elit nisi in eleifend sed nisi. Pulvinar at orci, proin imperdiet commodo consectetur convallis risus. Sed condimentum enim dignissim adipiscing faucibus consequat, urna. Viverra purus et erat auctor aliquam. Risus, volutpat vulputate posuere purus sit congue convallis aliquet. Arcu id augue ut feugiat donec porttitor neque. Mauris, neque ultricies eu vestibulum, bibendum quam lorem id. Dolor lacus, eget nunc lectus in tellus, pharetra, porttitor.

"Ipsum sit mattis nulla quam nulla. Gravida id gravida ac enim mauris id. Non pellentesque congue eget consectetur turpis. Sapien, dictum molestie sem tempor. Diam elit, orci, tincidunt aenean tempus."

Tristique odio senectus nam posuere ornare leo metus, ultricies. Blandit duis ultricies vulputate morbi feugiat cras placerat elit. Aliquam tellus lorem sed ac. Montes, sed mattis pellentesque suscipit accumsan. Cursus viverra aenean magna risus elementum faucibus molestie pellentesque. Arcu ultricies sed mauris vestibulum.

Conclusion

Morbi sed imperdiet in ipsum, adipiscing elit dui lectus. Tellus id scelerisque est ultricies ultricies. Duis est sit sed leo nisl, blandit elit sagittis. Quisque tristique consequat quam sed. Nisl at scelerisque amet nulla purus habitasse.

Nunc sed faucibus bibendum feugiat sed interdum. Ipsum egestas condimentum mi massa. In tincidunt pharetra consectetur sed duis facilisis metus. Etiam egestas in nec sed et. Quis lobortis at sit dictum eget nibh tortor commodo cursus.

Odio felis sagittis, morbi feugiat tortor vitae feugiat fusce aliquet. Nam elementum urna nisi aliquet erat dolor enim. Ornare id morbi eget ipsum. Aliquam senectus neque ut id eget consectetur dictum. Donec posuere pharetra odio consequat scelerisque et, nunc tortor. Nulla adipiscing erat a erat. Condimentum lorem posuere gravida enim posuere cursus diam.

Weekly newsletter
No spam. Just the latest releases and tips, interesting articles, and exclusive interviews in your inbox every week.
Read about our privacy policy.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.