docs: Update changelog

CHANGELOG.md

@@ -1,10 +1,24 @@
 # Changelog
 
-## v0.2.0
+## v0.3.0 (2024-02-26)
 
 ### Added
 
-- Add `tokenizer` option to `Document` class
+- Add support for [numo](https://rubygems.org/gems/numo) matrix library. @yagince @srapilly
+
+### Changed
+
+- Drop support for Ruby versions less than 2.4.
+
+### Fixed
+
+- Fix the `term_frequency` method in the `BM25Model` class caused by typographical error (`documents.size` instead of `document.size`).
+
+## v0.2.0 (2019-12-19)
+
+### Added
+
+- Add `tokenizer` option to `Document` class. @satoryu
 
   The value is an object with a `tokenize` method that accepts a string and returns an array of `Token` instances. 
 
@@ -28,4 +42,51 @@
   document = TfIdfSimilarity::Document.new("こんにちは世界", tokenizer: tokenizer)
   ```
 
-- Add `to_s` method to `Token` class, to use less memory than chaining `lowercase_filter` with `classic_filter`
+- Add `to_s` method to `Token` class, to use less memory than chaining `lowercase_filter` with `classic_filter`. @satoryu
+
+## v0.1.6 (2017-03-07)
+
+### Changed
+
+- Add support for recent RubyGems and Ruby versions (`require 'delegate'`). @diasks2
+- Drop support for Ruby 1.9.3.
+
+## v0.1.5 (2016-01-17)
+
+### Changed
+
+- Update the `classic_filter` method of the `Token` class to remove possessives when the apostrophe is a backtick (\`) or a single quotation mark (’). @diasks2
+- Drop support for Ruby 1.9.2.
+
+## v0.1.4 (2014-10-10)
+
+### Added
+
+- Add the `document_index` and `text_index` methods to the `Model` class and its subclasses.
+
+### Changed
+
+- Extract logic from the `BM25Model` and `TfIdfModel` classes to a new `Model` class.
+- Drop support for Ruby 1.8.7.
+
+## v0.1.3 (2014-04-12)
+
+### Changed
+
+- Load only the required methods from the `unicode_utils` gem, to use less memory.
+
+## v0.1.2 (2014-03-30)
+
+### Fixed
+
+- Install the `unicode_utils` gem only on Ruby versions greater than 1.8.
+
+## v0.1.1 (2014-03-28)
+
+### Changed
+
+- Remove `:function` option from `TfIdfModel` class. Use `BM25Model` class, instead.
+
+## v0.1.0 (2013-06-02)
+
+Major refactor of v0.0.x.