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 <!--- DO NOT EDIT THIS FILE - IT'S AUTOMATICALLY GENERATED VIA DEVTOOLS --->
 
+## 1.8.0 unreleased
+
+
+### Added
+
+- New extension for RSpec (@flash-gordon in #183):
+One of the pain points of testing monads is referencing class constants from specs.
+This extension catches missing class constants, analyzes the call site and
+returns a matching constant.
+
+Before, this code would raise a `NameError` because `Failure` is a constant
+that is missing in `Object`:
+
+```ruby
+example "missing constant" do
+  expect(call_operation).to eql(Failure[:some_error, "some message"])
+end
+```
+
+Now, after enabling the extension, it will return the correct constant:
+
+```ruby
+Dry::Monads.load_extensions(:rspec)
+
+example "missing constant" do
+  Failure[:some_error, "some message"] # => Failure[:some_error, "some message"]
+end
+```
+
+Out of the box, the extension will check if `Success`, `Failure`, `Some`, and
+`None` are referenced from a file ending with `_spec.rb`.
+
+More involved analysis is possible if you add `debug_inspector` to your Gemfile:
+
+```ruby
+group :test do
+  gem "debug_inspector"
+end
+```
+
+This will allow referencing constants from other modules, such as rspec helpers.
+
+The extension also adds new matchers for `Success`, `Failure`, `Some`, and
+`None` values.
+
+```ruby
+expect(Success(1)).to be_success
+expect(Success(1)).to be_success(1)
+expect(Success(1)).to be_success { |x| x > 0 }
+
+expect(Failure(1)).to be_failure(1)
+
+expect(Some(1)).to be_some
+expect(Some(1)).to be_success
+
+expect(None()).to be_none
+expect(None()).to be_failure
+```
+
+
+
+[Compare v1.7.1...v1.8.0](https://github.com/dry-rb/dry-monads/compare/v1.7.1...v1.8.0)
+
 ## 1.7.1 2025-01-21