Ruby agent v8.4.0

v8.4.0

• Provide basic support for Rails 7.0

  This release includes Rails 7.0 as a tested Rails version. Updates build upon the agent's current Rails instrumentation and do not include additional instrumentation for new features.

• Improve the performance of NewRelic::Agent::GuidGenerator#generate_guid

  This method is called by many basic operations within the agent including transactions, datastore segments, and external request segments. Thank you, @jdelstrother for contributing this performance improvement!

• Documentation: Development environment prep instructions

  The multiverse collection of test suites requires a variety of data handling software (MySQL, Redis, memcached, etc.) to be available on the machine running the tests. The project documentation has been updated to outline the relevant software packages, and a Brewfile file has been added to automate software installation with Homebrew.

• Bugfix: Add ControllerInstrumentation::Shims to Sinatra framework

  When the agent is disabled by setting the configuration settings enabled, agent_enabled, and/or monitor_mode to false, the agent loads shims for public controller instrumentation methods. These shims were missing for the Sinatra framework, causing applications to crash if the agent was disabled. Thank you, @NC-piercej for bringing this to our attention!

Support statement

New Relic recommends that you upgrade the agent regularly and at a minimum every 3 months. As of this release, the oldest supported version is 5.7.0.350.