v0.4.0 Importance etc. (2025-05-20)

• Implemented importance output
• Implemented beta and gamma distributions
• Implemented fault tree property computational_order (1 for rare approximation)
• Renamed tolerance to computational_tolerance
• Fixed partial sums should be initialised as float zero, not integer zero
• Converted model_type from string to enum
• Omitted/abbreviated irrelevant attributes in object representations

v0.3.2 Python 3.12 passing (2025-05-12)

• Fixed test_descending_sum failing in Python 3.12 due to new use of Neumaier summation in sum()
• Fixed incomplete model_type options in docs for events
• Fixed unformatted maths
• Improved docs

v0.3.1 Closed SVG paths (2025-05-12)

• Fixed AND/OR gate corner imperfection due to SVG paths not being closed
• Fixed minor coding style violations (including W605 invalid escape sequence \#)
• Fixed typos in maths
• Fixed typos in docs and improved clarity

v0.3.0 Proper NULL gates (2025-05-11)

• Implemented actual NULL gate (rather than have them be a visual form of a single-input OR/AND gate)
• Removed unused import Iterable in common.py
• Changed <int> to <integer> in documentation for consistency

v0.2.0 First reasonable (2025-05-10)

• Implemented VOTE gates
• Removed model type Undeveloped
• Added model types True and False (which trigger cut set simplification)
• Added event property appearance: Basic | Undeveloped | House
• Changed E[q], E[ω] to sample size tooltip
• Made single-input gates show as null gates
• Improved graphics sizes

v0.1.0 First unstable (2025-05-09)

• First reasonably working version. Vote gates yet to be implemented.