The Notifier component was introduced in Symfony 5.2 as the best way to send
notifications via one or more channels (email, SMS, chats, etc.) The component
is already integrated with dozens of services, but in Symfony 5.3 we’ve added
many more integrations:
Chatting services

• Microsoft Teams
  added by Edouard Lescot
  in PR 39007
• Gitter added by
  Christin Gruber
  in PR 39838
• Mercure
  added by Mathias Arlaud
  in PR 39342

SMS services

• SMS Biuras
  added by Vasilij Duško
  in PR 40691
• LightSMS
  added by Vasilij Duško
  in PR 40607
• iqsms
  added by Oleksandr B.
  in PR 39096
• AllMySMS
  added by Quentin Dequippe
  in PR 39617
• MessageBird
  added by Vasilij Duško
  in PR 40646
• Spot-Hit
  added by James Hemery
  in PR 39948
• Octopush
  added by Aurélien Martin
  in PR 39702
• GatewayAPI
  added by Piergiuseppe Longo
  in PR 39568
• Clickatell
  added by Kevin Auvinet
  in PR 38922

Other
We’ve also added some fake SMS and chat services so you can use them to debug
features while developing them:

• FakeSms added by James Hemery
  in PR 39949
• FakeChat added by Oskar Stark
  in PR 40647

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