• [CHANGE] API client: Add start/end parameters to LabelNames and LabelValues. #767
• [FEATURE] testutil: Add GatherAndCount and enable filtering in CollectAndCount #753
• [FEATURE] API client: Add support for status and runtimeinfo endpoints. #755
• [ENHANCEMENT] Wrapping nil with a WrapRegistererWith... function creates a no-op Registerer. #764
• [ENHANCEMENT] promlint: Allow Kelvin as a base unit for cases like color temperature. #761
• [BUGFIX] push: Properly handle empty job and label values. #752