[OpenSIPS-Devel] Introducing OpenSIPS 4.0

Bogdan-Andrei Iancu bogdan at opensips.org
Wed Feb 11 15:35:33 UTC 2026


Dear OpenSIPS'ers,

Let me introduce you to the upcoming OpenSIPS 4.0 .

The 4.0 version is a turning point in the OpenSIPS evolution. This is a 
standard release, opening the path for a new family of releases with 
bold aims to radically change and improve legacy concepts and code in 
OpenSIPS. Yes, 4.0 is to address old limitations, deprecated designs or 
burning needs we accumulated across years. Concepts we had from day 1 
(in SER at that time) are to be reworked; Also new concepts will be 
added, to align OpenSIPS with the challenges of the current days.

OpenSIPS 4.0 is all about re-vamping.

  * TCP framework rework
  * TLS refreshing
  * Dynamic TM branches
  * BOND interfaces
  * Monitoring and profiling
  * Proxy Protocol support
  * IMS interoperability

For the full list with technical description and details, visit :

https://www.opensips.org/Development/Opensips-4-0-Planning

See you for the OpenSIPS Summit!

https://summit.opensips.org/

Best regards,

-- 
Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
   https://www.siphub.com
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