Version 1.1

• added unit pF_value
• changed docu regarding yearGDD and seasonGDD and database access
• added aggregation type not_null
• changes to deal with the new weewx.xtypes.XTypeTable.get_aggregate() function in WeeWX 5.0

Version 1.0

• changed error handling for pyephem in daybounderystats.py
• fix bug that caused exception if record is None
• expose barometer algorithms to the user
• fix bug that caused values of 1e10 or -1e10 in certain conditions

Version 0.8

• new observation types equivalent (potential) temperature, mixing ratio,
  absolute humidity, and (saturation) vapor power
• option horizon and use_center for $daylight and .daylights
• option timestamp for $daylight to simplify for loops
• get correct temperature and barometer for calculating sunrise and sunset in $daylight
• bug fix in energy_integral
• more bug fixes
• property length for timespans

Version 0.7

Enhancements:

• extend aggregation type energy_integral to group_power
• new timespan $daylight
• new series $LMTweek.daylights $LMTmonth.daylights $LMTyear.daylights

Version 0.6

Changes:

• adapted to changed XType api of coming WeeWX 4.6

Enhancements:

• tags for day boundaries different to local timezone time
• observation type yearGDD and seasonGDD
• aggregation type GDD (or growdeg)

Version 0.5

Changes:

• fixed calculation of GTS.max
• correct calculation of GTS.max, min, maxtime, mintime for arbitrary time spans

Enhancements:

• energy_integral works for maxSolarRad, too

See README.md for description of features and instructions for use.

Version 0.4.1

This release includes:

• Grünlandtemperatursumme (GTS), a kind of growing degree days
• aggregation type 'energy_integral' to calculate solar energy from radiation readings
• calculating dayET and ET24 as opposite of dayRain and rain24

This version is tested with several WeeWX installations. Nevertheless it is not finished.