[ENHANCEMENT] Inlined fnv64a hashing for improved performance.
[ENHANCEMENT] Several test improvements.
[BUGFIX] Handle collisions in MetricVec.
0.7.0 / 2015-07-27
[CHANGE] Rename ExporterLabelPrefix to ExportedLabelPrefix.
[BUGFIX] Closed gaps in metric consistency check.
[BUGFIX] Validate LabelName/LabelSet on JSON unmarshaling.
[ENHANCEMENT] Document the possibility to create "empty" metrics in
a metric vector.
[ENHANCEMENT] Fix and clarify various doc comments and the README.md.
ENHANCEMENT solve "The Proxy Problem" of http.InstrumentHandler.
[ENHANCEMENT] Change responseWriterDelegator.written to int64.
0.6.0 / 2015-06-01
[CHANGE] Rename process_goroutines to go_goroutines.
[ENHANCEMENT] Validate label names during YAML decoding.
[ENHANCEMENT] Add LabelName regular expression.
[BUGFIX] Ensure alignment of struct members for 32-bit systems.
0.5.0 / 2015-05-06
[BUGFIX] Removed a weakness in the fingerprinting aka signature code.
This makes fingerprinting slower and more allocation-heavy, but the
weakness was too severe to be tolerated.
[CHANGE] As a result of the above, Metric.Fingerprint is now returning
a different fingerprint. To keep the same fingerprint, the new method
Metric.FastFingerprint was introduced, which will be used by the
Prometheus server for storage purposes (implying that a collision
detection has to be added, too).
[ENHANCEMENT] The Metric.Equal and Metric.Before do not depend on
fingerprinting anymore, removing the possibility of an undetected
fingerprint collision.
[FEATURE] The Go collector in the exposition library includes garbage
collection stats.
[FEATURE] The exposition library allows to create constant "throw-away"
summaries and histograms.
[CHANGE] A number of new reserved labels and prefixes.
0.4.0 / 2015-04-08
[CHANGE] Return NaN when Summaries have no observations yet.
[BUGFIX] Properly handle Summary decay upon Write().
[BUGFIX] Fix the documentation link to the consumption library.
[FEATURE] Allow the metric family injection hook to merge with existing
metric families.
[ENHANCEMENT] Removed cgo dependency and conditional compilation of procfs.
[MAINTENANCE] Adjusted to changes in matttproud/golang_protobuf_extensions.
0.3.2 / 2015-03-11
[BUGFIX] Fixed the receiver type of COWMetric.Set(). This method is
only used by the Prometheus server internally.
[CLEANUP] Added licenses of vendored code left out by godep.
0.3.1 / 2015-03-04
[ENHANCEMENT] Switched fingerprinting functions from own free list to
sync.Pool.
[CHANGE] Makefile uses Go 1.4.2 now (only relevant for examples and tests).
0.3.0 / 2015-03-03
[CHANGE] Changed the fingerprinting for metrics. THIS WILL INVALIDATE ALL
PERSISTED FINGERPRINTS. IF YOU COMPILE THE PROMETHEUS SERVER WITH THIS
VERSION, YOU HAVE TO WIPE THE PREVIOUSLY CREATED STORAGE.
[CHANGE] LabelValuesToSignature removed. (Nobody had used it, and it was
arguably broken.)
[CHANGE] Vendored dependencies. Those are only used by the Makefile. If
client_golang is used as a library, the vendoring will stay out of your way.
[BUGFIX] Remove a weakness in the fingerprinting for metrics. (This made
the fingerprinting change above necessary.)
[FEATURE] Added new fingerprinting functions SignatureForLabels and
SignatureWithoutLabels to be used by the Prometheus server. These functions
require fewer allocations than the ones currently used by the server.
0.2.0 / 2015-02-23
[FEATURE] Introduce new Histagram metric type.
[CHANGE] Ignore process collector errors for now (better error handling
pending).
[CHANGE] Use clear error interface for process pidFn.
[BUGFIX] Fix Go download links for several archs and OSes.
[ENHANCEMENT] Massively improve Gauge and Counter performance.
[ENHANCEMENT] Catch illegal label names for summaries in histograms.
[ENHANCEMENT] Reduce allocations during fingerprinting.
[ENHANCEMENT] Remove cgo dependency. procfs package will only be included if
both cgo is available and the build is for an OS with procfs.
[CLEANUP] Clean up code style issues.
[CLEANUP] Mark slow test as such and exclude them from travis.
[CLEANUP] Update protobuf library package name.
[CLEANUP] Updated vendoring of beorn7/perks.
0.1.0 / 2015-02-02
[CLEANUP] Introduced semantic versioning and changelog. From now on,
changes will be reported in this file.