v9.0.0

Added

• Added Ruby 3.0 support

Breaking changes

• Removed Ruby 2.4 support

v7.2.0

• Inverse order of writes for MySQL adapters to prevent deadlocks

v7.1.0

• Fix to_s on TransitionFailedError & GuardFailedError. .message and
  .to_s diverged when from and to accessors where added in v4.1.3

v7.0.1

• Fix deprecation warning with Ruby 2.7 #386

v7.0.0

Breaking changes

• Drop official support for Rails 4.2, 5.0 and 5.1, following our compatibility policy.

v6.0.0

Breaking changes

• Drop official support for Ruby 2.2 and 2.3 following our compatibility policy.

v5.2.0

v5.2.0, 17th December 2019

• Issue most_recent_transition_join query as a single-line string #381

V5.1.0

• Correct Statesman::Adapters::ActiveRecordQueries error text @Bramjetten
• Removes duplicate map call Isaac Seymour
• Update changelog with instructions of how to use ActiveRecordQueries added
  in v5.0.0
• Pass exception into after_transition_failure and after_guard_failure callbacks @credric-cordenier

v5.0.0

Adds new syntax and restrictions to ActiveRecordQueries PR#358.
With the introduction of this, defining self.transition_class or self.initial_state is deprecated and will be removed in the next major release.

v4.1.4

Reverts #358 which was included in a minor release instead of a major.