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+## 0.8.0 / 2016-08-17
+* [CHANGE] Registry is doing more consistency checks. This might break
+  existing setups that used to export inconsistent metrics.
+* [CHANGE] Pushing to Pushgateway moved to package `push` and changed to allow
+  arbitrary grouping.
+* [CHANGE] Removed `SelfCollector`.
+* [CHANGE] Removed `PanicOnCollectError` and `EnableCollectChecks` methods.
+* [CHANGE] Moved packages to the prometheus/common repo: `text`, `model`,
+  `extraction`.
+* [CHANGE] Deprecated a number of functions.
+* [FEATURE] Allow custom registries. Added `Registerer` and `Gatherer`
+  interfaces.
+* [FEATURE] Separated HTTP exposition, allowing custom HTTP handlers (package
+  `promhttp`) and enabling the creation of other exposition mechanisms.
+* [FEATURE] `MustRegister` is variadic now, allowing registration of many
+  collectors in one call.
+* [FEATURE] Added HTTP API v1 package.
+* [ENHANCEMENT] Numerous documentation improvements.
+* [ENHANCEMENT] Improved metric sorting.
+* [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] (Kind of) 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.