v0.5.0 / 2017-11-16

NOTE: This release breaks backward compatibility. statsd_exporter now uses
a YAML configuration file. You must convert your mappings configuration to
the new format when you upgrade. For example, the configuration

test.dispatcher.*.*.*
name="dispatcher_events_total"
processor="$1"
action="$2"
outcome="$3"
job="test_dispatcher"

*.signup.*.*
name="signup_events_total"
provider="$2"
outcome="$3"
job="${1}_server"

now has the format

mappings:
- match: test.dispatcher.*.*.*
  help: "The total number of events handled by the dispatcher."
  name: "dispatcher_events_total"
  labels:
    processor: "$1"
    action: "$2"
    outcome: "$3"
    job: "test_dispatcher"
- match: *.signup.*.*
  name: "signup_events_total"
  help: "The total number of signup events."
  labels:
    provider: "$2"
    outcome: "$3"
    job: "${1}_server"

The help field is optional.

There is a tool available to help with this conversion.

• [CHANGE] Replace the overloaded "packets" metric (#106)
• [CHANGE] Removed -statsd.add-suffix option flag #99. Users should remove
  this flag when upgrading. Metrics will no longer automatically include the
  suffixes _timer or counter. You may need to adjust any graphs that used
  metrics with these suffixes.
• [CHANGE] Reduce log levels #92. Many log events have been changed from error
  to debug log level.
• [CHANGE] Use YAML for configuration file #66. See note above about file format
  conversion.
• [IMPROVEMENT] Allow help text to be customized #87
• [IMPROVEMENT] Add support for regex mappers #85
• [IMPROVEMENT] Add TCP listener support #71
• [IMPROVEMENT] Allow histograms for timer metrics #66
• [IMPROVEMENT] Added support for sampling factor on timing events #28
• [BUGFIX] Conflicting label sets no longer crash the exporter and will be
  ignored. Restart to clear the remembered label set. #72