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CHANGELOG.md

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Changelog

This is a broad overview of the changes that have been made over the lifespan of this library.

v0.27.1 - 2024-10-10

  • Slightly simplify TrueSkill calculations

v0.27.0 - 2024-06-08

  • Add full support for rating more than 2 teams with TrueSkill
    • Includes match quality, expected outcomes, and the rating function

v0.26.0 - 2023-10-08

  • Add expected_score_rating_period functions for all rating systems

v0.25.1 - 2023-10-05

  • Overhaul documentation

v0.25.0 - 2023-06-04

  • Add Rating, RatingSystem, RatingPeriodSystem, TeamRatingSystem, and MultiTeamRatingSystem traits

v0.24.0 - 2023-01-01

  • Renamed match_quality_teams to match_quality_two_teams for consistency

v0.23.0 - 2022-12-31

  • Added expected_score_multi_team function for weng_lin
  • Renamed expected_score_teams -> expected_score_two_teams for both weng_lin and trueskill

v0.22.0 - 2022-12-19

  • Added weng_lin_multi_team, and MultiTeamOutcome struct
  • Renamed weng_lin_teams -> weng_lin_two_teams
  • Renamed trueskill_teams -> trueskill_two_teams

v0.21.1 - 2022-12-17

  • Perform Step 1 of Glicko calculation
  • Perform Step 6 of Glicko-Boost calculation

v0.21.0 - 2022-11-24

  • Return a more descriptive error on get_first_dwz function instead of returning None

v0.20.0 - 2022-11-06

  • Added FIFA rating algorithm (Men)

v0.19.2 - 2022-10-27

  • Change every function that takes a Vec to now take a Slice

v0.19.1 - 2022-10-26

  • Add more From implementations for rating structs

v0.19.0 - 2022-10-23

  • Add optional serde support

v0.18.0 - 2022-10-23

  • Major restructuring of ratings, configs and outcomes
    • Ratings and Configs now reside in the rating algorithms files
    • Outcomes now reside in the lib.rs file

v0.17.0 - 2022-10-21

  • Added USCF rating algorithms

v0.16.0 - 2022-10-19

  • Added Glicko-Boost algorithm
  • Added boolean parameter to results tuple in Sticko rating period function to indicate advantages
  • Calculate Sticko rating period function like Glicko and Glicko-2

v0.15.2 - 2022-10-16

  • Calculating Glicko rating period and Glicko-2 rating period properly now

v0.15.1 - 2022-10-15

  • Increase performance and readability of some functions
  • Added to_chess_points() function to Outcomes enum
  • Fix slight inaccuracy (<0.01%) in Glicko-2 volatility calculations

v0.15.0 - 2022-10-13

  • Add EGF rating algorithm

v0.14.0 - 2022-10-13

  • Add Sticko rating algorithm

v0.13.4 - 2022-10-03

  • Improve performance of some functions

v0.13.3 - 2022-10-03

  • Add Apache/MIT dual license
  • Add some GitHub templates

v0.13.2 - 2022-10-03

  • Implement more From traits for Ratings
  • Overhaul examples

v0.13.1 - 2022-10-01

  • Add some benchmarks
  • Overhaul documentation

v0.13.0 - 2022-09-25

  • All functions now use references instead of taking ownership unnecessarily

v0.12.0 - 2022-08-26

  • Add Weng-Lin (A Bayesian Approximation Method for Online Ranking) calculations
  • Return original teams when a team is empty in trueskill::trueskill_teams

v0.11.0 - 2022-08-26

  • Add new and default implementations for DWZRating
  • new implementation for IngoRating now requires an age to be set

v0.10.2 - 2022-08-25

  • Fix typos

v0.10.1 - 2022-08-25

  • Overhauled documentation

v0.10.0 - 2022-08-24

  • Add team calculations for TrueSkill
    • These include trueskill::trueskill_teams, trueskill::expected_score_teams, trueskill::match_quality::teams

v0.9.2 - 2022-08-23

  • Fix major bug in TrueSkill draw calculations
    • Would just give you your old rating if you had a draw, works properly now

v0.9.1 - 2022-08-20

  • Improved performance of rating_period functions
  • Improved docs main page

v0.9.0 - 2022-08-20

  • Add rating_period functions, these allow to get a single rating from a list of results.
    • The following functions have been added: dwz::dwz_rating_period, elo::elo_rating_period, glicko::glicko_rating_period, glicko2::glicko2_rating_period, ingo::ingo_rating_period, trueskill::trueskill_rating_period.

v0.8.0 - 2022-08-19

  • Add config structs: EloConfig, GlickoConfig, Glicko2Config, TrueSkillConfig
    • These allow you to change some values used in the algorithm to further customise the behaviour
    • The following functions require a config now: elo::elo, glicko::decay_deviation, glicko2::glicko2, trueskill::trueskill, trueskill::match_quality, trueskill::expected_score
  • Fix some spelling issues

v0.7.2 - 2022-08-18

  • Implement eq for Outcomes
  • Refactor some loops

v0.7.1 - 2022-08-17

  • Replace .unwrap_or() usage in DWZ calculations

v0.7.0 - 2022-08-16

  • Add Ingo calculations

v0.6.0 - 2022-08-16

  • Add TrueSkill calculations

v0.5.0 - 2022-08-14

  • Added DWZ calculations

v0.4.1 - 2022-08-13

  • Fix major bug in glicko-2 volatility calculations
    • This would yield a wildly incorrect solution when the players came back from a "losing streak"

v0.4.0 - 2022-08-13

  • Added Glicko (1) calculations
  • Renamed old GlickoRating to Glicko2Rating
    • New GlickoRating is for the Glicko System now
  • Added confidence_interval function to Glicko2 and Glicko

v0.3.1 - 2022-08-12

  • Fix some clippy issues

v0.3.0 - 2022-08-12

  • elo::expected_score now takes in two EloRatings instead of f64
  • Added default implementation for GlickoRating and EloRating
  • Improved CI
  • Improved docs

v0.2.0 - 2022-08-10

  • Added rating deviation decay function for Glicko-2

v0.1.0 - 2022-08-09

  • Initial release
  • Includes Glicko-2 and Elo functions to calculate scores and expected outcomes