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Shutting Down LSL XML-RPC

Signal Linden


LSL XML-RPC is a deprecated method for communication between remote systems and LSL scripts. Its use has been cautioned against since the introduction of LSL HTTP-In functionality in 2009. We plan on shutting down LSL XML-RPC completely on June 1st, 2023.


As of 2023/03/21, the average amount of traffic served by XML-RPC has dwindled to a few dozen requests per hour. Considering this extraordinarily low amount of traffic and the fact that LSL's more modern HTTP in/out functionality has been available for over 16 years, maintaining LSL XML-RPC infrastructure does not represent a good use of development resources. We'd rather spend time developing new features! 😉


  • April-May 2023 - One or more unannounced circuit-breaker exercises will be performed by temporarily blocking incoming LSL XML-RPC traffic. This will give residents and Lindens a chance to experience XML-RPC shutdown and perform any required corrective actions (Upgrading scripts to HTTP-In, etc.) before permanent shut down.
  • May 2023 - XML-RPC will be permanently disabled on RC regions
  • June 2023 - Incoming LSL XML-RPC traffic will be permanently blocked across the grid.

Running LSL scripts that use XML-RPC functionality will continue to function to the extent they can with XML-RPC functions no longer doing anything. If you have functionality that depends on XML-RPC, please migrate your scripts and supporting services to HTTP-In.

If you have questions or concerns feel free to attend the Simulator User Group meeting, held Tuesdays, 12:00 PM Pacific in Denby.

Update: 2023/05/03 - XML-RPC circuit breaker has been left open, as we have not received any indication of XML-RPC impacting production systems. This post's timeline has also been updated to reflect the RC deploy schedule.

Edited by Signal Linden
Updated schedule to reflect RC deploy schedule

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