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3.4.1 (November 12th, 2019)

Bugfixes:

  • Reference ActionController directly when including split helpers, to avoid breaking Rails API Controllers (@andrehjr, #602)

3.4.0 (November 9th, 2019)

Features:

  • Improve DualAdapter (@santib, #588), adds a new configuration for the DualAdapter, making it possible to keep consistency for logged_out/logged_in users. It's a opt-in flag. No Behavior was changed on this release.
  • Make dashboard pagination default "per" param configurable (@alopatin, #597)

Bugfixes:

  • Fix force_alternative for experiments with incremented version (@giraffate, #568)
  • Persist alternative weights (@giraffate, #570)
  • Combined experiment performance improvements (@gnanou, #575)
  • Handle correctly case when ab_finished is called before ab_test for a user (@gnanou, #577)
  • When loading active_experiments, it should not look into user's 'finished' keys (@andrehjr, #582)

Misc:

  • Remove rubyforge_project from gemspec (@giraffate, #583)
  • Fix URLs to replace http with https (@giraffate , #584)
  • Lazily include split helpers in ActionController::Base (@hasghari, #586)
  • Fix unused variable warnings (@andrehjr, #592)
  • Fix ruby warnings (@andrehjr, #593)
  • Update rubocop.yml config (@andrehjr, #594)
  • Add frozen_string_literal to all files that were missing it (@andrehjr, #595)

3.3.2 (April 12th, 2019)

Features:

  • Added uptime robot to configuration.rb (@razel1982, #556)
  • Check to see if being run in Rails application and run in before_initialize (@husteadrobert, #555)

Bugfixes:

  • Fix error message interpolation (@hanibash, #553)
  • Fix Bigdecimal warnings (@agraves, #551)
  • Avoid hitting up on redis for robots/excluded users. (@andrehjr, #544)
  • Checks for defined?(request) on Helper#exclude_visitor?. (@andrehjr)

Misc:

  • Update travis to add Rails 6 (@edmilton, #559)
  • Fix broken specs in developement environment (@dougpetronilio, #557)

3.3.1 (January 11th, 2019)

Features:

  • Filter some more bots (@janosch-x, #542)

Bugfixes:

  • Fix Dashboard Pagination Helper typo (@cattekin, #541)
  • Do not storage alternative in cookie if experiment has a winner (@sadhu89, #539)
  • fix user participating alternative not found (@NaturalHokke, #536)

Misc:

  • Tweak RSpec instructions (@eliotsykes, #540)
  • Improve README regarding rspec usage (@vermaxik, #538)

3.3.0 (August 13th, 2018)

Features:

  • Added pagination for dashboard (@GeorgeGorbanev, #518)
  • Add Facebot crawler to list of bots (@pfeiffer, #530)
  • Ignore previewing requests (@pfeiffer, #531)
  • Fix binding of ignore_filter (@pfeiffer, #533)

Bugfixes:

  • Fix cookie header duplication (@andrehjr, #522)

Performance:

  • Improve performance of RedisInterface#make_list_length by using LTRIM command (@mlovic, #509)

Misc:

  • Update development dependencies
  • test rails 5.2 on travis (@lostapathy, #524)
  • update ruby versions for travis (@lostapathy, #525)

3.2.0 (September 21st, 2017)

Features:

  • Allow configuration of how often winning alternatives are recalculated (@patbl, #501)

Bugfixes:

  • Avoid z_score numeric exception for conversion rates >1 (@cmantas, #503)
  • Fix combined experiments (@semanticart, #502)

3.1.1 (August 30th, 2017)

Bugfixes:

  • Bring back support for ruby 1.9.3 and greater (rubygems 2.0.0 or greater now required) (@patbl, #498)

Misc:

  • Document testing with RSpec (@eliotsykes, #495)

3.1.0 (August 14th, 2017)

Features:

  • Support for combined experiments (@daviddening, #493)
  • Rewrite CookieAdapter to work with Rack::Request and Rack::Response directly (@andrehjr, #490)
  • Enumeration of a User's Experiments that Respects the db_failover Option(@MarkRoddy, #487)

Bugfixes:

  • Blocked a few more common bot user agents (@kylerippey, #485)

Misc:

  • Repository Audit by Maintainer.io (@RichardLitt, #484)
  • Update development dependencies
  • Test on ruby 2.4.1
  • Test compatibility with rails 5.1
  • Add uris to metadata section in gemspec

3.0.0 (March 30th, 2017)

Features:

  • added block randomization algorithm and specs (@hulleywood, #475)
  • Add ab_record_extra_info to allow record extra info to alternative and display on dashboard. (@tranngocsam, #460)

Bugfixes:

  • Avoid crashing on Ruby 2.4 for numeric strings (@flori, #470)
  • Fix issue where redis isn't required (@tomciopp , #466)

Misc:

  • Avoid variable_size_secure_compare private method (@eliotsykes, #465)

2.2.0 (November 11th, 2016)

Backwards incompatible! Redis keys are renamed. Please make sure all running tests are completed before you upgrade, as they will reset.

Features:

  • Remove dependency on Redis::Namespace (@bschaeffer, #425)
  • Make resetting on experiment change optional (@moggyboy, #430)
  • Add ability to force alternative on dashboard (@ccallebs, #437)

Bugfixes:

  • Fix variations reset across page loads for multiple=control and improve coverage (@Vasfed, #432)

Misc:

  • Remove Explicit Return (@BradHudson, #441)
  • Update Redis config docs (@bschaeffer, #422)
  • Harden HTTP Basic snippet against timing attacks (@eliotsykes, #443)
  • Removed a couple old ruby 1.8 hacks (@andrew, #456)
  • Run tests on rails 5 (@andrew, #457)
  • Fixed a few codeclimate warnings (@andrew, #458)
  • Use codeclimate for test coverage (@andrew #455)

2.1.0 (August 8th, 2016)

Features:

  • Support REDIS_PROVIDER variable used in Heroku (@kartikluke, #426)

2.0.0 (July 17th, 2016)

Breaking changes:

  • Removed deprecated finished and begin_experiment methods
  • Namespaced override param to avoid potential clashes (@henrik, #398)

1.7.0 (June 28th, 2016)

Features:

  • Running concurrent experiments on same endpoint/view (@karmakaze, #421)

1.6.0 (June 16th, 2016)

Features:

  • Add Dual Redis(logged-in)/cookie(logged-out) persistence adapter (@karmakaze, #420)

1.5.0 (June 8th, 2016)

Features:

  • Add expire_seconds: TTL option to RedisAdapter (@karmakaze, #409)
  • Optional custom persistence adapter (@ndelage, #411)

Misc:

  • Use fakeredis for testing (@andrew, #412)

1.4.5 (June 7th, 2016)

Bugfixes:

  • FIX Negative numbers on non-finished (@divineforest, #408)
  • Eliminate extra RedisAdapter hget (@karmakaze, #407)
  • Remove unecessary code from Experiment class (@pakallis, #391, #392, #393)

Misc:

  • Simplify Configuration#normalized_experiments (@pakallis, #395)
  • Clarify test running instructions (@henrik, #397)

1.4.4 (May 9th, 2016)

Bugfixes:

  • Increment participation if store override is true and no experiment key exists (@spheric, #380)

Misc:

  • Deprecated finished method in favour of ab_finished (@andreibondarev, #389)
  • Added minimum version requirement to simple-random
  • Clarify finished with first option being a hash in Readme (@henrik, #382)
  • Refactoring the User abstraction (@andreibondarev, #384)

1.4.3 (April 28th, 2016)

Features:

  • add on_trial callback whenever a trial is started (@mtyeh411, #375)

Bugfixes:

  • Allow algorithm configuration at experiment level (@007sumit, #376)

Misc:

  • only choose override if it exists as valid alternative (@spheric, #377)

1.4.2 (April 25th, 2016)

Misc:

  • Deprecated some legacy methods (@andreibondarev, #374)

1.4.1 (April 21st, 2016)

Bugfixes:

  • respect manual start configuration after an experiment has been deleted (@mtyeh411, #372)

Misc:

  • Introduce goals collection to reduce complexity of Experiment#save (@pakallis, #365)
  • Revise specs according to http://betterspecs.org/ (@hkliya, #369)

1.4.0 (April 2nd, 2016)

Features:

  • Added experiment filters to dashboard (@ccallebs, #363, #364)
  • Added Contributor Covenant Code of Conduct

1.3.2 (January 2nd, 2016)

Bugfixes:

  • Fix deleting experiments in from the updated dashboard (@craigmcnamara, #352)

1.3.1 (January 1st, 2016)

Bugfixes:

  • Fix the dashboard for experiments with ‘/‘ in the name. (@craigmcnamara, #349)

1.3.0 (October 20th, 2015)

Features:

  • allow for custom redis_url different from ENV variable (@davidgrieser, #323)
  • add ability to change the length of the persistence cookie (@peterylai, #335)

Bugfixes:

  • Rescue from Redis::BaseError instead of Redis::CannotConnectError (@nfm, #342)
  • Fix active experiments when experiment is on a later version (@ndrisso, #331)
  • Fix caching of winning alternative (@nfm, #329)

Misc:

  • Remove duplication from Experiment#save (@pakallis, #333)
  • Remove unnecessary argument from Experiment#write_to_alternative (@t4deu, #332)

1.2.1 (May 17th, 2015)

Features:

  • Handle redis DNS resolution failures gracefully (@fusion2004, #310)
  • Push metadata to ab_test block (@ekorneeff, #296)
  • Helper methods are now private when included in controllers (@ipoval, #303)

Bugfixes:

  • Return an empty hash as metadata when Split is disabled (@tomasdundacek, #313)
  • Don't use capture helper from ActionView (@tomasdundacek, #312)

Misc:

  • Remove body "max-width" from dashboard (@xicreative, #299)
  • fix private for class methods (@ipoval, #301)
  • minor memoization fix in spec (@ipoval, #304)
  • Minor documentation fixes (#295, #297, #305, #308)

1.2.0 (January 24th, 2015)

Features:

  • Configure redis using environment variables if available (@saratovsource , #293)
  • Store metadata on experiment configuration (@dekz, #291)

Bugfixes:

  • Revert the Trial#complete! public API to support noargs (@dekz, #292)

1.1.0 (January 9th, 2015)

Changes:

  • Public class methods on Split::Experiment (e.g., find_or_create) have been moved to Split::ExperimentCatalog.

Features:

  • Decouple trial from Split::Helper (@joshdover, #286)
  • Helper method for Active Experiments (@blahblahblah-, #273)

Misc:

  • Use the new travis container based infrastructure for tests (@andrew, #280)

1.0.0 (October 12th, 2014)

Changes:

  • Remove support for Ruby 1.8.7 and Rails 2.3 (@qpowell, #271)

0.8.0 (September 25th, 2014)

Features:

  • Added new way to calculate the probability an alternative is the winner (@caser, #266, #251)
  • support multiple metrics per experiment (@stevenou, #260)

Bugfixes:

  • Avoiding call to params in EncapsulatedHelper (@afn, #257)

0.7.3 (September 16th, 2014)

Features:

  • Disable all split tests via a URL parameter (@hwartig, #263)

Bugfixes:

  • Correctly escape experiment names on dashboard (@ecaron, #265)
  • Handle redis connection exception error properly (@andrew, #245)

0.7.2 (June 12th, 2014)

Features:

  • Show metrics on the dashboard (@swrobel, #241)

Bugfixes:

  • Avoid nil error with ExperimentCatalog when upgrading (@danielschwartz, #253)
  • [SECURITY ISSUE] Only allow known alternatives as query param overrides (@ankane, #255)

0.7.1 (March 20th, 2014)

Features:

  • You can now reopen experiment from the dashboard (@mikezaby, #235)

Misc:

  • Internal code tidy up (@IanVaughan, #238)

0.7.0 (December 26th, 2013)

Features:

  • Significantly improved z-score algorithm (@caser ,#221)
  • Better sorting of Experiments on dashboard (@wadako111, #218)

Bugfixes:

  • Fixed start button not being displayed in some cases (@vigosan, #219)

Misc:

  • Experiment#initialize refactoring (@nberger, #224)
  • Extract ExperimentStore into a seperate class (@nberger, #225)

0.6.6 (October 15th, 2013)

Features:

  • Sort experiments on Dashboard so "active" ones without a winner appear first (@swrobel, #204)
  • Starting tests manually (@duksis, #209)

Bugfixes:

  • Only trigger completion callback with valid Trial (@segfaultAX, #208)
  • Fixed bug with resettable when using normalize_experiments (@jonashuckestein, #213)

Misc:

  • Added more bots to filter list (@lbeder, #214, #215, #216)

0.6.5 (August 23, 2013)

Features:

  • Added Redis adapter for persisting experiments across sessions (@fengb, #203)

Misc:

  • Expand upon algorithms section in README (@swrobel, #200)

0.6.4 (August 8, 2013)

Features:

  • Add hooks for experiment deletion and resetting (@craigmcnamara, #198)
  • Allow Split::Helper to be used outside of a controller (@nfm, #190)
  • Show current Rails/Rack Env in dashboard (@rceee, #187)

Bugfixes:

  • Fix whiplash algorithm when using goals (@swrobel, #193)

Misc:

  • Refactor dashboard js (@buddhamagnet)

0.6.3 (July 8, 2013)

Features:

  • Add hooks for Trial#choose! and Trial#complete! (@bmarini, #176)

Bugfixes:

  • Stores and parses Experiment's start_time as a UNIX integer (@joeroot, #177)

0.6.2 (June 6, 2013)

Features:

  • Rails 2.3 compatibility (@bhcarpenter, #167)
  • Adding possibility to store overridden alternative (@duksis, #173)

Misc:

  • Now testing against multiple versions of rails

0.6.1 (May 4, 2013)

Bugfixes:

  • Use the specified algorithm for the experiment instead of the default (@woodhull, #165)

Misc:

  • Ensure experiements are valid when configuring (@ashmckenzie, #159)
  • Allow arrays to be passed to ab_test (@fenelon, #156)

0.6.0 (April 4, 2013)

Features:

  • Support for Ruby 2.0.0 (@phoet, #142)
  • Multiple Goals (@liujin, #109)
  • Ignoring IPs using Regular Expressions (@waynemoore, #119)
  • Added ability to add more bots to the default list (@themgt, #140)
  • Allow custom configuration of user blocking logic (@phoet , #148)

Bugfixes:

  • Fixed regression in handling of config files (@iangreenleaf, #115)
  • Fixed completion rate increases for experiments users aren't participating in (@philnash, #67)
  • Handle exceptions from invalid JSON in cookies (@iangreenleaf, #126)

Misc:

  • updated minimum json version requirement
  • Refactor Yaml Configuration (@rtwomey, #124)
  • Refactoring of Experiments (@iangreenleaf @tamird, #117 #118)
  • Added more known Bots, including Pingdom, Bing, YandexBot (@julesie, @zinkkrysty, @dimko)
  • Improved Readme (@iangreenleaf @phoet)

0.5.0 (January 28, 2013)

Features:

  • Persistence Adapters: Cookies and Session (@patbenatar, #98)
  • Configure experiments from a hash (@iangreenleaf, #97)
  • Pluggable sampling algorithms (@woodhull, #105)

Bugfixes:

  • Fixed negative number of non-finished rates (@philnash, #83)
  • Fixed behaviour of finished(:reset => false) (@philnash, #88)
  • Only take into consideration positive z-scores (@thomasmaas, #96)
  • Amended ab_test method to raise ArgumentError if passed integers or symbols as alternatives (@buddhamagnet, #81)

0.4.6 (October 28, 2012)

Features:

  • General code quality improvements (@buddhamagnet, #79)

Bugfixes:

  • Don't increment the experiment counter if user has finished (@dimko, #78)
  • Fixed an incorrect test (@jaywengrow, #74)

0.4.5 (August 30, 2012)

Bugfixes:

  • Fixed header gradient in FF/Opera (@philnash, #69)
  • Fixed reseting of experiment in session (@apsoto, #43)

0.4.4 (August 9, 2012)

Features:

  • Allow parameter overrides, even without Redis. (@bhcarpenter, #62)

Bugfixes:

  • Fixes version number always increasing when alternatives are changed (@philnash, #63)
  • updated guard-rspec to version 1.2

0.4.3 (July 8, 2012)

Features:

  • redis failover now recovers from all redis-related exceptions

0.4.2 (June 1, 2012)

Features:

  • Now works with v3.0 of redis gem

Bugfixes:

  • Fixed redis failover on Rubinius

0.4.1 (April 6, 2012)

Features:

  • Added configuration option to disable Split testing (@ilyakatz, #45)

Bugfixes:

  • Fix weights for existing experiments (@andreas, #40)
  • Fixed dashboard range error (@andrew, #42)

0.4.0 (March 7, 2012)

IMPORTANT

If using ruby 1.8.x and weighted alternatives you should always pass the control alternative through as the second argument with any other alternatives as a third argument because the order of the hash is not preserved in ruby 1.8, ruby 1.9 users are not affected by this bug.

Features:

  • Experiments now record when they were started (@vrish88, #35)
  • Old versions of experiments in sessions are now cleaned up
  • Avoid users participating in multiple experiments at once (#21)

Bugfixes:

  • Overriding alternatives doesn't work for weighted alternatives (@layflags, #34)
  • confidence_level helper should handle tiny z-scores (#23)

0.3.3 (February 16, 2012)

Bugfixes:

  • Fixed redis failover when a block was passed to ab_test (@layflags, #33)

0.3.2 (February 12, 2012)

Features:

  • Handle redis errors gracefully (@layflags, #32)

0.3.1 (November 19, 2011)

Features:

  • General code tidy up (@ryanlecompte, #22, @mocoso, #28)
  • Lazy loading data from Redis (@lautis, #25)

Bugfixes:

  • Handle unstarted experiments (@mocoso, #27)
  • Relaxed Sinatra version requirement (@martinclu, #24)

0.3.0 (October 9, 2011)

Features:

  • Redesigned dashboard (@mrappleton, #17)
  • Use atomic increments in redis for better concurrency (@lautis, #18)
  • Weighted alternatives

Bugfixes:

  • Fix to allow overriding of experiments that aren't on version 1

0.2.4 (July 18, 2011)

Features:

  • Added option to finished to not reset the users session

Bugfixes:

  • Only allow strings as alternatives, fixes strange errors when passing true/false or symbols

0.2.3 (June 26, 2011)

Features:

  • Experiments can now be deleted from the dashboard
  • ab_test helper now accepts a block
  • Improved dashboard

Bugfixes:

  • After resetting an experiment, existing users of that experiment will also be reset

0.2.2 (June 11, 2011)

Features:

  • Updated redis-namespace requirement to 1.0.3
  • Added a configuration object for changing options
  • Robot regex can now be changed via a configuration options
  • Added ability to ignore visits from specified IP addresses
  • Dashboard now shows percentage improvement of alternatives compared to the control
  • If the alternatives of an experiment are changed it resets the experiment and uses the new alternatives

Bugfixes:

  • Saving an experiment multiple times no longer creates duplicate alternatives

0.2.1 (May 29, 2011)

Bugfixes:

  • Convert legacy sets to lists to avoid exceptions during upgrades from 0.1.x

0.2.0 (May 29, 2011)

Features:

  • Override an alternative via a url parameter
  • Experiments can now be reset from the dashboard
  • The first alternative is now considered the control
  • General dashboard usability improvements
  • Robots are ignored and given the control alternative

Bugfixes:

  • Alternatives are now store in a list rather than a set to ensure consistent ordering
  • Fixed diving by zero errors

0.1.1 (May 18, 2011)

Bugfixes:

  • More Robust conversion rate display on dashboard
  • Ensure Split::Version is available everywhere, fixed dashboard

0.1.0 (May 17, 2011)

Initial Release

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