Changes in MySQL Router 26.7.0 (2026-07-28)

Note

These release notes were created with the assistance of MySQL HeatWave GenAI.

• Functionality Added or Changed

• Bugs Fixed

Functionality Added or Changed

• MySQL Router can now enforce limits on HTTP connections, and request and response body sizes. The following http_server configuration parameters are introduced:

  • max_http_connections: Maximum number of simultaneously active client connections the HTTP server will allow. Permitted range is 1 to 100000 connections. Default value is 1024.

  • max_request_body_size: Maximum allowed size, in bytes, of a HTTP request body. Permitted range is 0 to 2147483648 (2 GiB). Default value is 16777216 (16MiB).

  • max_response_body_size: Maximum allowed size, in bytes, of a HTTP response body sent by the HTTP server. Permitted range is 0 to 2147483648 (2 GiB). Default value is 16777216 (16MiB).

  If a connection or request breaches any of the defined limits, the HTTP server rejects the connection or request. (Bug #39268619, WL #17288)

Bugs Fixed

• Trailing semi-colons following START TRANSACTION, BEGIN, and BEGIN WORK, resulted in rejection of those transactions when connection sharing was enabled. (Bug #39190243)

• Fixed an issue relating to shutdown sequences. (Bug #38537545)