v31.5.0 (2020-07-22)

Full changelog

• General
  • Implement ping tagging (i.e. the X-Source-Tags header) (#1074). Note that this is not yet implemented for iOS.
  • String values that are too long now record invalid_overflow rather than invalid_value through the Glean error reporting mechanism. This affects the string, event and string list metrics.
  • metrics.yaml files now support a data_sensitivity field to all metrics for specifying the type of data collected in the field.
• Python
  • The Python unit tests no longer send telemetry to the production telemetry endpoint.
  • BUGFIX: If an application_version isn't provided to Glean.initialize, the client_info.app_display_version metric is set to "Unknown", rather than resulting in invalid pings.
• Android
  • Allow defining which Activity to run next when using the GleanDebugActivity.
• iOS
  • BUGFIX: The memory unit is now correctly set on the MemoryDistribution metric type in Swift in generated metrics code.
• C#
  • Metrics can now be generated from the metrics.yaml files.