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0.5.0 (January 28, 2012)

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