v6.1.0

• Added net47 target framework (#355)

v6.0.0

• Added time-to-live feature by @ogxd (#343, #345)
• Changed MetricFamily dictionary key from 32 to 64 bits hash to reduce collisions by @ogxd (#342)
• Added net462 and net6.0 target frameworks
• Fixed some errors found with Windows tests (#300)

Breaking changes:

• Removed legacy metrics (#352)

v5.2.0

• Moved Create[Metric] from Extensions to MetricFactory (#212)

v5.1.0

• Added debug info when type or label validation fails (#204)

v5.0.0

• Normalized default metrics with backward compatible (#189)
• Added Release method to IMetricFactory (#178)
• Added CancellationToken to ScrapeHandler (#164)

Breaking changes:

• Removed Obsolete methods (#140)

v4.5.3

• Allowed empty string label

v4.5.2

• Fixed race condition on metrics creation

v4.5.1

• Fixed compatibility with extensions

v4.5.0

• Added metric prefix to default collectors (#142)

v4.4.0

• Added IncTo() method to ICounter (#135)
• Added IncTo() and DecTo() methods to IGauge (#135)