yoastseo-lite/CHANGELOG.md

Yoast clientside page analysis for string only

# Change Log

This changelog is according to [Keep a Changelog](http://keepachangelog.com).

All notable changes to this project will be documented in this file.
We will follow [Semantic Versioning](http://semver.org/) from version 2 and onwards.

## 1.62.0 October 29th, 2019
### Enhancements:
 * Adds a new Readability Score of 0 and "Not Available". Changes Readability for empty content from "Needs Improvement" to "Not Available". Props to [emilyatmobtown](https://github.com/emilyatmobtown)

## 1.61.0 October 14th, 2019
### Added
* Adds the transition word assessment for Hungarian, props to [9abor](https://github.com/9abor)

## 1.60.0 September 30th, 2019
No user-facing changes.

## 1.59.0 September 16th, 2019
No user-facing changes.

## 1.58.0 September 3rd, 2019
### Enhancements:
* Implements the assessment that checks whether multiple sentences begin with the same word for Portuguese, props to [amesdigital](https://github.com/amesdigital).
* Increases the recommended sentence length limit for Portuguese, props to [amesdigital](https://github.com/amesdigital).

## 1.57.0 July 22nd, 2019
### Changed
* No user-facing changes.

## 1.56.0 July 8th, 2019
### Changed
* Changes the following improved internal linking functionality (which is disabled by a feature flag by default):
  * Bumps the minimum number of required word occurrences from 2 to 4 (when extracting prominent words for internal linking).

## 1.55.0 June 24th, 2019
### Changed
* Updated the CSS autoprefixer configuration to drop support for old Internet Explorer versions.

## 1.54.0 June 11th, 2019
### Added
* Adds an improved internal linking functionality behind a feature flag. For now, this new functionality is disabled by default. Specifically, the new internal linking functionality has the following improvements:
  * Changes the way prominent words are extracted for the Internal linking suggestions and Insights features. No multiple-word combinations are considered anymore, but single words only. For languages with morphological support (currently English and German) different morphological forms of words (e.g., `link`, `linking`, `links`, `linked`) are recognized and collapsed together, which improves the performance of the said features.
  * Changes the Insights functionality in the following way: no words that occurred less than 5 times in the text of the post are displayed. For languages with morphological support (for now, English and German) different word forms of the same word are collapsed based on their stem/base form (e.g., the stem of words `link`, `linking`, `links`, and `linked` is `link`). If the stem coincides with an actual word used in the text, it is displayed to the user in the list of Insights. If the stem does not coincide with any words used in the text, the first word form of the stem that occurred in the text will be used for display.
  * Changes the Internal linking suggestions functionality in the following way: not only the text of the post but also different meta data fields are used for analysis, i.e., title, keyphrase, synonyms, meta description, subheadings (H2 and H3 levels). One occurrence of a word in the said meta data fields is deemed more important than one occurrence of this word inside the text. Stems are further saved in the database and used for matching of prominent words between posts and the internal linking functionality.

## 1.52.0 May 14th, 2019
### Added
* Adds a dependency to `@yoast/feature-flag`.
* Adds createRegexFromArray export to yoastseo index.js.

### Fixed
* Improves keyphrase recognition for additional irregular verbs in German (e.g., `brennen`, `senden`, `kennen`).

## 1.51.0 April 29th, 2019
### Added
* Adds functionality to specify a custom premium-configuration branch to use for tests, locally and on Travis.

### Fixed
* Adds error handling to the YoastSEO development tool, when building the tree for visualization purposes.
* Fixes the parsing of paragraphs within headings when using the tree parser. Previously, it crashed the building of the tree.

### Changed
* Improves the recognition of German keyphrases that include words with an `i` or `e` in between vowels (e.g., `schrieen`, `schreien`, `speie`).
* Rewrites the SEO and readability analysis such that it uses both the original assessors as well the new tree assessors. The results of both are combined and their scores aggregated.

## 1.50.0 April 1st, 2019
### Added
* Adds word form recognition for German.
* Adds more transition words for Swedish.
* Adds visualization of the tree to the dev tool.

### Changed
* Increases the recommended sentence length limit for Spanish and Catalan, props to [Sílvia Fustegueres](https://www.ampersand.net/en/).
* Improves list of Catalan transition words, props to [Sílvia Fustegueres](https://www.ampersand.net/en/).

### Fixed
* Fixes a bug that impeded recognition of word forms for keyphrases on taxonomy pages.

## 1.49.0 March 11th, 2019
### Added
* The recalibrated analysis is out of its beta phase and is now the default for the SEO analysis. Thanks for testing and giving us your valuable feedback! You are awesome!

### Fixed
* Changes the text read out by a screen reader from `Bad SEO score.` to `Needs improvement.` when focused on the SEO score indicator in the menu bar and the traffic light in the snippet preview.

### Changed
* Props to [Kingdutch](https://github.com/Kingdutch) for helping us to improve our open source content analysis library.

## 1.48.0 February 25th, 2019
### Added
* Improves the feedback for the assessment that checks the length of the text in cornerstone articles.

### Fixed
* Fixes a bug where a Flesch reading ease score of exactly 90 would incorrectly trigger a red bullet.

## 1.47.0 February 11th, 2019
### Fixed
* Fixes accidental removal of the SEO Assessor export from the index. Props [Kingdutch](https://github.com/Kingdutch).

## 1.46.0 January 21st, 2019
### Added
* Adds readability analysis for Swedish.
* Adds prominent words for Swedish.
* Improves keyword recognition in Swedish by filtering function words.
* Improves the transition word assessment for German.
* Improves the error logging when there is an error in an SEO or readability assessment.

## 1.45.0 January 7th, 2019
### Fixed
* Fixes a bug where special characters from certain word lists weren't correctly escaped when matched with a regex. This resulted in `eggs` being incorrectly matched as the transition word `e.g.`, for example.
* Fixes a crash when loading the createWorker module because the window was accessed in the global scope immediately.

### Added
* When the recalibration feature flag is switched on:
  * The single title assessment is added. This assessment makes sure that you don't use superfluous H1s in your text.
  * The following assessments are not used anymore:
    * The assessment checking the length or your URL.
    * The assessment checking whether your URL contains stopwords.
  * Assessments changes:
    * Keyphrase density: changes scoring schema to account for the length of the keyphrase and changes feedback strings so that we give feedback about the number of occurrences rather than a percentage.
    * Outbound links assessment: changes the scoring schema so that red bullet instead of an orange bullet is shown when you have no outbound links.
    * Image alt attributes: if there are at least 5 images, checks whether the alt tags contain the keyphrase or synoynyms in 30-70% of all images. If there are less than 5 images, 1 image with the keyphrase or synonym in the alt tag is still scored as good.
    * Keyphrase in title: function words preceding the exact match keyphrase are ignored when determining the position of the keyphrase in the title.
    * Keyphrase length: makes the scoring scheme less strict for languages that don't have function word support, so that for these languages keyphrases with 1-6 words are scored as green, 7-9 as orange, and more than 9 as red.
    * Keyphrase in subheading: only takes H2 and H3 level subheadings into account and changes the scoring schema so that 30%-75% of these subheadings need to include the keyphrase or its synonyms. In languages without function word support, a match is only counted if all the words from the keyphrase/synonym appear in the subheading.
    * Text length: on taxonomy pages, the recommended minimum text length is increased from 150 to 250 words.
* The browser console now shows more descriptive error messages when something went wrong during analyses in the web worker.

### Changed
* Improved README Usage to detail the Web Worker API.

## 1.44.0 December 14th, 2018
### Fixed
* Fixes a bug where keyphrases weren't recognized in the URL when the words in the URL were separated by underscore characters instead of hyphens.
* Fixes a bug that caused numbers to be stripped when marking a keyphrase containing a number, e.g. `Yoast SEO 9.3`.
  
### Added
* Adds relevant words from the browserified example to the dev tool.
* Adds the option to use local morphology data in the dev tool.

### Changed
* Improves error handling in the analysis web worker by rejecting the last request instead of just throwing an error.

## 1.43.0 November 19th, 2018
### Fixed
* Fixes assessments failing when using a `<` sign in the content.
* Fixes a bug where paragraphs were sometimes not correctly detected because paragraph tags were not automatically added in WordPress-like fashion.

### Added
* Adds toggles to use the different assessors in the webpack example (e.g., for all the different combinations for cornerstone and taxonomy pages and related keyphrase).
* Introduce logger in the AnalysisWebWorker to replace the development console log.

### Changed
* Refactor SEO assessment file names and exports. Props [Kingdutch](https://github.com/Kingdutch).
* Disables the non-functioning markers for the subheading distribution assessment.

## 1.42.0 November 5th, 2018

### Fixed
* Improves keyword recognition in the first paragraph on texts which start with images and captions.

### Other
* Removes non-functioning eye-markers from the link keyphrase assessment.

## 1.41.1 October 29th, 2018

### Fixed
* Fixes a bug where the Chrome browser tab would crash on Windows when a French or Italian text contains sentences in passive voice, props [CarloCannas](https://github.com/CarloCannas).
* Fixes a bug where the Yoast SEO analysis would error if used together with the DelightfulDownloads plugin.

## 1.41.0 October 22nd, 2018

### Added
* Introduces two new principles for keyword recognition:
  * Makes keyphrase recognition flexible with regards to word order. This means that the keyphrase `SEO WordPress plugin` will be found in the sentence `This is the most popular SEO plugin for WordPress.` In order to use exact matches, the keyphrase can be enclosed in quotation marks.
  * When matching keyphrases for the various assessments, the analysis only targets content words and ignores function words (e.g., `the` or `and`). This functionality is available in English, German, Dutch, French, Spanish, Italian, Portuguese, Russian and Polish. 
* Implements support for word form recognition for keyphrases in English (requires Premium configuration).
* Improves the feedback texts for all SEO and readability assessments.
* Adds functionality to append a query string to the assessment links through the analysis worker.
* Adds an assessment that checks whether your keyword consists only of function words.

### Changed
* The analysis of the following assessments incorporates the new keyword recognition principles:
  * Image alt attributes: checks whether there’s at least one image with an alt tag that contains words from the keyphrase. An exact match isn’t required anymore.
  * Keyphrase in introduction: checks whether words from the keyphrase are matched within one sentence in the introduction or, if not, whether they are present in the first paragraph at all. An exact match isn’t required anymore.
  * Keyphrase in title: still checks whether an exact match of the keyphrase is found in (the beginning of) the title, but now also recommends improvement if all words from the keyphrase are found in the title.
  * Keyphrase length: has new boundaries to check whether the keyphrase is not too long. For languages that have support for function word stripping (see above), only content words are taken into account.
  * Keyphrase in meta description: checks how often all words from the keyphrase are matched within the meta description.
  * Keyphrase in subheading: checks whether at least one subheading contains more than half of the words from the keyphrase. An exact match isn’t required anymore.
  * Keyphrase in slug: checks whether a sufficient number of words from the keyphrase is used in the slug. The number of words required depends on the length of the keyphrase.
  * Keyphrase density: checks whether there are enough keyphrase matches; a match is defined as a sentence that contains all words from the keyphrase. The upper boundary for a good score is higher when word form recognition is available, since in that case the analysis is able to pick up more matches.
  * Link focus keyphrase: the assessment that checks whether you’re using your keyphrase to link to a different article doesn't require an exact match anymore.
  * Keyphrase distribution uses an improved algorithm that checks whether the keyphrase is evenly distributed throughout the text.
* The following assessments will also count synonym matches as keyphrase matches:
  * Image alt attributes
  * Keyphrase in introduction
  * Keyphrase in meta description
  * Keyphrase in subheading
  * Keyphrase distribution
* Deprecates the assessment that checks if stopwords are used within the keyphrase.
* The analysis for related keyphrases only shows assessments relevant for the specific keyphrase. It omits assessments that are non-keyphrase-related and assessments that should only be applied to the focus keyphrase.
  
### Fixed
* Fixes a bug where the keyword would not be found in the slug when containing punctuation, for example the keyphrase `apples & pears` in the slug `apples-pears`.

## 1.40.0 September 24th, 2018

### Bugs:

* Fixes a bug that caused keywords beginning with the Turkish characters `İ` / `i` and `I` / `ı` not to be recognized when changing that character from lowercase to uppercase and vice versa. 

### Enhancements:

* Exposes word boundaries for use in other libraries or applications.

### Changed:

* Drops TypeScript support.
* Changes all usage of `lodash` to `lodash-es`.
* `index.js` has been rewritten to use ES6 Module import and export logic, instead of Node's `require` logic.

## 1.39.3 September 19th, 2018

### Bugs:

* Fixes a bug that would cause a browser crash in Chrome and Opera on Windows when the site language was Polish and the readability analysis was switched on.

## 1.39.2 September 6th, 2018

### Bugs:

* Fixes a bug where the readability analysis would not show the correct scores for cornerstone content.
* Fixes a bug where switching off the SEO analysis would stop the readability analysis from loading.

## 1.39.1 September 5th, 2018

* Fixes a bug where our JavaScript memory usage would increase indefinitely. This could result in a browser crash after a long enough period.

## 1.39 August 28th, 2018

### Enhancements
* Adds readability analysis for Polish.
* Adds prominent words for Polish.

## 1.38.4 September 5th, 2018

### Bugs:

* Fixes a bug where our JavaScript memory usage would increase indefinitely. This could result in a browser crash after a long enough period.

## 1.38.3 August 24th, 2018

### Bugs:

* Fixes an issue where the worker communication wouldn't work when the script was minified.

## 1.38.2 August 24th, 2018

### Bugs:

* Fixes an issue where we would show bad results for an empty Paper.

### Enhancements:

* Automatically parse and serialize all value objects send to and from the worker. This means `Paper` objects can be passed to the analysis wrapper.
* Add a method to the worker that can run any arbitrary research, `runResearch`.
* Add a priority system to the Scheduler, this means extensions run before the analysis to make sure they are loaded.
* Adds support for related keywords.

## 1.38.1 August 21st, 2018
* Improves web worker functionality.

## 1.38.0 August 21st, 2018
* Adds basic web worker functionality.

## 1.37.0 August 13th, 2018
* Updates the font size of the snippet title measure element to correctly mimic Google's desktop snippet title.
* Deprecates the switch assessor.

## 1.36.1 August 6th, 2018
### Changed
* Increased the debounce delay in the App to make sure the refresh is triggered less often.

## 1.36.0 July 24th, 2018
### Added
* Adds a link to a relevant article about re-using keywords to the feedback of the assessment that checks if the keyword was used previously.
* Exposes all assessments and more as a public API.
* Adds the passive voice assessment for Dutch.

### Changed
* Improves the order in which assessments are triggered. The keyword in the title is only checked once there's a title, the keyword in the introduction is only checked once there's a text, and the keyword in the meta description is only checked once there's a meta description.

### Fixed
* Fixes a bug that caused keywords to be incorrectly recognized within possessive forms (e.g. `Natalia` in `Natalia's fix`).
* Improves the recognition of keywords with special diacritics in the URL.
* Improves keyword recognition through adding Spanish inverted exclamation and question marks to the rules that determine word boundaries.

## 1.35.5 July 16th, 2018

## 1.35.4 July 16th, 2018
### Changed
* Changes feedback in the keyword density assessment to make it more explicit that synonyms are not taken into consideration when calculating the score.

## 1.35.3 July 9th, 2018
### Changed
* Makes keyword distribution boundaries the same regardless of whether or not synonyms are set, enables markings also when the bullet is green, and shows a gray bullet when there are not enough keyword occurrences to calculate distribution.

## 1.35.2 July 5th, 2018
### Changed
* Removes the topic density assessment and uses the keyword density assessment also when synonyms are set.

## 1.35.1 July 4th, 2018
### Fixed
* Fixes a bug where a custom callback would not work correctly.

## 1.35.0 July 3rd, 2018
### Added
* Adds an assessment the checks the distribution of the focus keyword in the text.
* Adds a topic distribution and topic density assessment to use with synonyms.
* Adds links to relevant articles to all SEO assessments.
* Adds Flesch Reading Ease assessment for French.
* Adds Flesch Reading Ease assessment for Spanish.
* Add passive voice assessment for Italian.

### Fixed
* Instances of the same keyword with different kinds of apostrophes (e.g., brain’s and brain's) are now recognized as the same in the following assessments: keyword in meta description, keyword in subheading, keyword in first paragraph, keyword in title, keyword in URL.
* Filters out prominent word combinations ending in 's in English. Props to [swekkiekekkie](https://github.com/swekkiekekkie).

## 1.34.0 June 12th, 2018
### Fixed
* Fixes title width measurements by adding font styles to the hidden input field.

### Changed
* Improves the lists of French transition words, stopwords, and function words, props [Laurent-1971](https://github.com/Laurent-1971).

## 1.33.1 May 25th, 2018
### Fixed
* Fixes a bug where Flesch Reading Ease translation strings were not fully translated.

## 1.33.0 May 23rd, 2018
### Added
* Adds Catalan transition words.
* Added the title width to rawData in app.js to be used by the title width assessment.

### Changed
* Changed max meta description length from 320 to 156.

## 1.32.0 May 16th, 2018
### Added
* Adds Flesh Reading Ease for Russian.

### Changed
* Sequences of symbols which do not contain a single letter or digit are no longer considered a valid keyword.
* Question marks and hashes are stripped from the snippet preview URL.
* Makes the snippetPreview optional in the App. This can be enabled by putting the hasSnippetPreview argument to false.

## 1.31.0 April 26th, 2018
### Added
* Adds readability analysis for Russian.
* Adds prominent words for Russian.

### Changed
* Improves SVG image accessibility.
* Updates the language support table in the README.

### Fixed
* Fixes a bug where sentences ending in multiple sentence marks, exclamation marks or ellipses were treated as multiple sentences.

## 1.30.2  March 16th, 2018
### Changed
* Reverted the default view of the snippet preview to desktop.

## 1.30.1 March 12th, 2018
### Fixed
* Fixes a bug that broke a filter which marks Spanish and French sentences as non-passive when certain exception words occur between the auxiliary and the participle.

## 1.30.0 March 5th, 2018
### Added
* Adds a setter for titleWidth to the snippet preview. 
* Adds a researcher to calculate the reading time for a given paper.
* Adds a filter to mark Spanish sentences as non-passive when certain exception words occur between the auxiliary and the participle. The list of exception words includes all forms of the copula 'estar'.
* Adds transition words assessment for Portuguese, props [amesdigital](https://github.com/amesdigital).
* Adds prominent words for Portuguese, props [amesdigital](https://github.com/amesdigital).

### Changed
* The snippet preview now shows the mobile preview by default.
* Fixes a bug where division by zero errors in the passive voice assessment would cause `NaN%` to show up in the feedback.
* Fixes a bug where multiple `rel` arguments prevented correct `nofollow` detection. 
* Slightly increased the height of the meta description box so it matches the maximum amount of characters without needing a scrollbar.
* Improves the list of Portuguese function words.

## 1.29.0 January 15th, 2018
### Added
* Adds language support table to the README.
* Adds a performance analysis tool.
* Adds the passive voice assessment for French.
* Adds the passive voice assessment for Spanish.

### Changed
* Simplifies the message for the SubheadingsKeywordAssessment.
* Reduces the number of times the content analysis is refreshed on page load.
* Fixes a bug where relative URLs were not counted as internal links in the internal link assessment.

## 1.28.0 December 18th, 2017
### Changed
* Includes the link to the post about using your focus keyword multiple times also to the feedback text that is shown when using a focus keyword twice. 
* Changes the anchor text of the link to the post about using your focus keyword multiple times to a more accessible one.

## 1.27.0 December 15th, 2017
### Changed
* The upper boundary of the meta description length has been changed from 156 to 320 characters.

## 1.26.0 December 13th, 2017
### Changed
* Updates the copy for the `previouslyUsedKeywords` assessment by referring to a new blogpost on why it might be a bad idea to use the same keyword more than once.

## 1.25.0 December 11th, 2017
### Added
* Adds a link to the subheadings article in the readability analysis to better explain the advantages of using subheadings in your text. #1317

## 1.24 November 29th, 2017
### Changed
* Changes the feedback string for a good meta description length from `The length of the meta description is sufficient.` to `The meta description has a nice length.` #1307

## 1.23.1 November 7th, 2017
### Added
* Adds a sentence research. #1278
* Adds escaping of the focus keyword in the url generated by the `PreviouslyUsedKeywords` assessment. #1281

## 1.23.0 October 31st, 2017
* Errors now give a score of -1. `ScoreToRating` interpreter will convert `-1` to `error`. #1272
* Adds `Excited` to exception -ed verbs for passive voice assessment. #1269
* Adds `release` script to `.travis.yml` for publishing to npm. #1265
* Adds a filter to exclude `code` tags and their enclosed content from the content analysis assessments. #1250
* Adds a filter to exclude `pre` tags and their enclosed content from the content analysis assessments, props [chrisboo](https://github.com/chrisboo). #1258
* Switches testing framework to `jest`. #1266

## 1.22.0 October 3rd, 2017
* Added typescript support.
* Add filter for exception words between auxiliary and passive participle.
* Fixes a bug that caused an error in the passive analysis when certain words ending in ing were followed by a parenthesis.

## 1.21.0: September 5th, 2017
* Adds updatedKeywordsResults and updatedContentResults callbacks to app.js.

## 1.20.0: August 8th, 2017
### Added
* Adds a filter for word combinations that consist of a single one-character word.

### Fixed
* Fixes a bug where the passive voice and transition word assessments were broken when the passive voice sentence breaker or the transition word was preceded by a word containing the same string of letters.

## 1.19.0: July 25th, 2017
### Added
* Adds additional English transition words.
* Adds additional French transition words, props [Evoque](https://github.com/@evoqueio).
* Adds relevant words functionality for Italian.
* Adds relevant words filters for titles such as 'Ms', 'jr' etc. for English, Dutch, German, French, Italian and Spanish.
* Adds plural ordinal numbers relevant words filters for Spanish, Italian, and French.
* Adds time words relevant words filters for English, Dutch, German, French and Spanish.
* Adds more function words category relevant words filters for Spanish and Italian.

### Changed
* Improves filtering for Internal Linking Suggestions and Insights for Italian, Spanish, Dutch, French, English and German.
* Removes all relevant word combinations containing any of the following special characters if they are not part of a word: –, —, -, ©, #, %, /, \, $, €, £, *, •, |, →, ←, }, {, //, ||.

### Fixed
* Fixes a visual imperfection in the tooltip in combination with Microsoft Edge.

## 1.18.0: July 6th, 2017
### Changed
* Changes 'page title' to 'seo title' in the snippet preview.
* Changes recommended maximum sentence length for Italian from 20 to 25 words, based on more in-depth research.

### Added
* Adds Flesch Reading for Italian.
* Adds prominent words for French, props Sylvain Perret and [Evoque](https://github.com/evoqueio).

## 1.17.2: June 7th, 2017

### Fixed
* Remove YoastSEO.js as dependency of itself.

## 1.17.0: June 7th, 2017

### Fixed
* Fixes a bug where assessments added with the pluggable were omitted.

## 1.16.0: May 23rd, 2017

### Fixed
* Fixes a typo in app.js comments, props [Alexander Varwijk](https://github.com/Kingdutch).
* Fixes an incompatibility issue with includes in Internet Explorer. The browser doesn't support includes and that broke the HTMLparser.

### Added
* Adds cornerstone assessors.

## 1.15.1: May 9th, 2017

### Fixed
* Fixes an issue where the analysis wouldn't work on Internet Explorer.

## 1.15.0: May 2nd, 2017

### Fixed
* Fixes a bug where style and script elements were parsed for the prominent words.
* Fixes a bug where the cursor pointer was in front of the metabox.

### Added
* Adds transition words for Italian.
* Adds a new assessment for internal linking that checks for the presence of at least one internal link.

## 1.14.0: April 11th, 2017

### Fixed
* Fixes the provided example code, props [Alexander Guth](https://github.com/alxy).

### Added
* Introduces sentence beginnings assessment for Italian.

## 1.13.0: March 21st, 2017

### Fixed

* Fixes a bug where the keyword density assessment would disappear when the density was 0.5%.

## 1.12.0: February 28th, 2017

### Fixed
* Sets the boldness of the strong tags to 700 to enforce that they are displayed strong.
* Changes strings that link to an article to improve context.
* Changes links to short links so we can ensure they are always up to date.

## 1.11.0: February 14th, 2017

### Added
* Adds prominent words for Spanish.
* Adds getLinks to the researcher, this function retrieves the URLs of the links from the text.

### Changed
* Improves feedback text for subheading too long assessment.

## 1.10.0: January 31st, 2017

### Added
* Adds prominent words for Dutch.
* Adds example for testing the prominent words analysis.
* Adds the tooltip CSS rule from Yoast SEO to yoastSEO.js.

### Changed
* Improves the accessibility of the snippet preview toggle buttons.
* Makes the mark buttons tooltips always visible.

### Fixed
* Fixes a bug where the measurement elements holder `<div>` breaks the responsive view of the media modal.

## 1.9.0: January 17th, 2017

### Added

* Adds mobile snippet preview.
* Adds sentence length check for Dutch.
* Adds sentence beginnings check for Dutch.
* Adds transition words for Dutch.
* Adds German prominent words.

### Changed

* Removes unused assessments; sentence length variation, subheading length, 
    subheading presence, subheading distribution too short, paragraph too short
* Makes the stop words check language dependant.

## 1.8.0: December 13th, 2016

### Added

* Adds passive voice for German. 
* Adds more transition words for French.

### Changed

* Creates value objects for sentence parts and participles.
* Improves feedback strings for the meta description length assessment. 
* Improves matching of the keyword in the first paragraph.
* Improves the snippet preview to match the styling of Google's snippet.

### Fixed

* Fixes a bug where keywords with periods where not highlighted in the snippet.

## 1.7.0: October 11th, 2016

### Added

* Adds relevant word research that returns a list of most prominent words in a given Paper.

### Changed

* Changes all target= links to consistently be target=_blank.

### Fixed

* Adds missing transition words to German transition word list.
* Fixes a bug where empty sentences could be marked when marking the beginning of sentences.

## 1.6.0: September 27th, 2016

### Changed

* Improves carets used in the snippet preview to support RTL.

### Fixed

* Keywords with special characters are now matched.
* Changes sassdash from a dev dependency to a regular dependency.

## 1.5.0: September 7th, 2016

### Changed

* Improves sentence beginning check by matching only alphanumeric characters.
* Adds horizontal ellipses as sentence terminator.

### Fixed

* Improves detecting sentence endings with block ends.
* Passive voice detects multiple uses of the same auxiliary.
* Yoast marks are no longer placed around block level elements.
* Prevents division by zero in transition word assessment result text.
* Passive voice detects exceptions with the word 'rid' correctly.

### Added

* Flesch Reading for Dutch
* Flesch Reading for German

## 1.4.1: August 2nd, 2016

### Fixed

* Fixes a security issue where the focus keyword would be output without escaping it first.

## 1.4.0: July 19th, 2016

### Changed

* Improves feedback texts of assessments.
* Improves Russian transliteration.
* Determine length of title based on the width in pixels instead of on number of characters.
* Words comprised of only digits are no longer counted in the Flesch Reading assessment.
* Improves passive voice detection by omitting HTML tags.
* Non breaking spaces are replaced with normal spaces in word boundaries.

### Fixed

* Improved keyword density assessment by scoring on the rounded result.
* ¿ and ¡ are now accepted as sentence beginnings.
* Fix a bug where the text assessment would fail with exactly 300 words.
* Fix a bug in the competing links assessment where a link to the same post would be counted as an outbound link.

### Added

* Transliterations for the following languages:
    * Breton, Chamorro, Corsican, Kashubian, Welsh, Ewe
    * Estonian, Basque, Fulah, Fijian, Arpitan, Friulian
    * Frisian, Irish, Scottish Gaelic, Galician, Guarani
    * Swiss German, Haitian Creole, Hawaiian, Croatian
    * Georgian, Greenlandic, Kinyarwanda, Luxembourgish
    * Limburgish, Lingala, Lithuanian, Malagasy, Macedonian
    * Maori, Mirandese, Occitan, Oromo, Portuguese, Romansh Vallader
    * Aromanian, Romanian, Slovak, Slovenian, Albanian
    * Klingon (in Latin characters, not KLI PlqaD script yet)
    * Hungarian, Sardinian, Silesian, Tahitian, Venetian, Walloon
* Added assessment for consecutive sentences beginning with the same word for the following languages:
    * English, German, French, Spanish.
* Added transition words for German, French and Spanish.

## 1.3.3: June 21st, 2016

### Changed
* Change the calculation of the aggregate content score to be more lenient for non-English languages. 

## 1.3.2: June 15th, 2016

### Fixed
* Fix a bug where the transition words and passive voice assessments would display on non-English languages. 

## 1.3.1: June 14th, 2016

### Fixed
* Fix a bug where no content would result in a green overall content score.

## 1.3.0: June 14th, 2016

### Added

* Assessments that assess the following properties:
    * The length of subheadings.
    * The length of text following a subheading.
    * The length of paragraphs.
    * The length of sentences.
    * The presence of transition words.
    * The presence of the passive voice.
* Markers for certain assessments that can show the location of the feedback inside the text:
	* The length of paragraphs.
	* The length of sentences.
	* The presence of passive voice.
	* The presence of transition words.
	* The presence of links with the focus keyword as link text.
* Transliteration for the following languages:
    * Spanish, Polish, German, Nynorsk, Bokmål, Swedish, Finnish,
    * Danish, Turkish, Latvian, Icelandic, Faroese, Czech, Russian,
    * Esperanto, Afrikaans, Catalan, Asturian, Aragonese, Aymara,
    * English, French, Italian, Dutch, Bambara.
* Improved accessibility in the snippet preview.

* Added a marker argument to the `App` that can be used to inject a marker function.
* Added a marker argument to the `Assessor` that can be used to inject a marker function.
* Added a button after all assessment results that can be marked in the text.

### Changed

* Created a contentAssessor that contains all content assessments. Some
assessments have been moved from the SEO sssessor to the content
assessor.
* Gracefully fail on assessment failure. An assessment that has a fatal
 error now will be shown as a gray bullet and add a trace to the console.
* Improve the way we detect sentences in the text.
* Improve performance of the flesch reading ease.
* Make sure the refresh of the app is always properly debounced.
* Add identifier to all assessments and assessment results to be able to reference them later.
* Hide progress bars from screen readers.

### Fixed
* Fix a bug where a modification on the title wasn't correctly taken into account.
* Fix a bug where alt tags were requires in all images instead of in only one of the images.
* Fix a bug where having subheadings without the focus keyword was worse than having no subheadings at all.
* Fix a bug where requiring paper in index.js would fail on case-sensitive systems, props [Chris Bosco](https://github.com/cbosco).

## 1.2.2: May 4th, 2016

### Bug

* Fixes a bug where the alt-attribute assessment required all images to have an alt-attribute with the keyword.

## 1.2.1: April 21th, 2016

### Bugfixes

* Fixes a bug where one wrong translation could crash all the JavaScript.

## 1.2: April 20th, 2016

### Backwards incompatible changes

* Stopped loading sassdash, when importing the scss files you need to include sassdash yourself.
* Removed all analyses in favor of researches.
* Implement the used keywords assessment as a bundled plugin, this means that an implementation should call the plugin itself.
* Removes `js/config/scoring.js`
* Removes `js/analyzer.js`
* Removes `js/analyzescorer.js`
* Removes `browser.js` as we expect implementations to browserify themselves.
* Removes `app.registerTest` in favor of `app.registerAssessment`.
* Removes `js/scoreFormatter.js`

### Features

* Introduces several value objects to more easily work with content and results:
	* `Paper` to represent the text that is about to be assessed.
	* `AssessmentResult` to represent the result of a single assessment.
* Implements all value judgements about content as assessments, we introduced the following assessments:
	* FleschReadingEaseAssessment
	* IntroductionKeywordAssessment
	* KeyphraseLengthAssessment
	* KeywordDensityAssessment
	* KeywordStopWordsAssessment
	* MetaDescriptionKeywordAssessment
	* MetaDescriptionLengthAssessment
	* SubheadingsKeywordAssessment
	* TaxonomyTextLengthAssessment
	* TextCompetingLinksAssessment
	* TextImagesAssessment
	* TextLengthAssessment
	* TextLinksAssessment
	* TextSubheadingsAssessment
	* TitleKeywordAssessment
	* TitleLengthAssessment
	* UrlKeywordAssessment
	* UrlLengthAssessment
	* UrlStopWordsAssessment
* Implements all statistics about a text as researches, we introduced the following researches. All researches expect a `Paper`.
	* calculateFleschReading
	* countLinks
	* findKeywordInFirstParagraph
	* findKeywordInPageTitle
	* getKeywordDensity
	* getLinks
	* getLinkStatistics
	* imageAltTags
	* imageCountInText
	* keyphraseLength
	* keywordCountInUrl
	* matchKeywordInSubheadings
	* matchSubHeadings
	* metaDescriptionKeyword
	* metaDescriptionLength
	* pageTitleLength
	* stopWordsInKeyword
	* stopWordsInText
	* stopWordsInUrl
	* urlIsTooLong
	* wordCountInText
* Introduces an `Assessor` that contains a number of assessments and is able to determine a total assessment.
* Introduces an `SEOAssessor` that has all the assessments that are currently available.
* Introduces an `AssessorPresenter` to output the results of an `Assessor` to the DOM.
* Introduces a template to more easily render the assessment results.
* Introduces an `Researches` that contains a number of researches and is you can retrieve a specific research from.
* Rewrites the `App` to make use of the assessor setup.
* Introduces `scoreToRating` to transform a score to a rating.
* Introduces `InvalidTypeError` for passing invalid types to constructors or methods
* Introduces `config/presenter.js` to transform a rating into a className or screenreader text.
* Exports certain prototypes and functions in an `index.js`.

### Enhancements

* Improves the contrast between the background and the red circle by choosing a different color red.
* Add a clearfix mixin.
* Switches to ESLint in favor of JSHint, JSONLint, JSValidate and JSCS.
* Switches to a custom grunt script to build the lodash templates, `grunt-lodash` is deprecated.
* Adds an argument to `stringToRegex` to specify whether to replace diacritics before building the regex.
* Massively improves test coverage.
* Updates `lodash` from version 3 to version 4.
* Pluralizes certain translations, this makes it possible to correctly translate these strings.
* Adds a sass function for a caret point to the left.

### Bugfixes

* Removes several `for..in` calls that errored when build in prototypes had added methods or properties.
* Fixes a bug where accented characters were not correctly matched in subheadings and the snippet editor.

## 1.1: March 1st, 2016

### Backwards incompatible changes

* Passing the title, url and meta description meant for the snippet editor is no longer taken into account. The snippet
editor keeps track of these values itself.
* `callbacks.updateSnippetValues` has been deprecated in favor of `callback.saveSnippetData`. Currently a raw event is
passed to `updateSnippetValues`. This is undesirable because it couples the callback to the DOM. The new
`saveSnippetData` passes the actual data that the user put in the fields.
* The `SnippetPreview` object now requires an options object instead of an `App` object. The `App` object should still be passed inside the options object with the `analyzerApp` key.
* Removed `SnippetPreview` methods:
	* `setFocus`
	* `hideEditIcon`
	* `showEditIcon`
	* `textFeedback` 
	* `disableEnter`
* Removed `App` methods:
	* `bindSnippetEvents`
	* `bindEvent`
	* `createEditIcon`
	* `createSnippetPreviewEditIcon`
	* `createSnippetPreviewMeta`
	* `createSnippetPreviewUrl`
	* `createSnippetPreviewTitle`
* Deprecated `App.createSnippetPreview`
* Removed `StringHelper` prototype.
* Removed `PreProcessor` prototype.

### Features

* Completely redesign the snippet editor editing experience:
	* Remove the contenteditable fields
	* Add a decoupled form to edit the title, slug and meta description fields.
	* Add a button to clearly show how to open the snippet editor.
	* Add headings to clearly indicate which part is the snippet preview and which is the editor.
	* Add progress bars to show an indication about the length of the title and meta description.
	* Add carets before the preview and form fields to show which preview belongs to which input field.
* Introduce modules. All non-trivial modules are moved out of `analyzer.js` and moved to the `analyses` folder as module. Where it makes sense we added a `stringProcessing` folder with all the string helper modules.
* Introduces new SnippetPreview functions:
	* toggleEditor
	* closeEditor
	* openEditor
	* updateDataFromDOM
	* changedInput
	* bindEvents
	* updateProgressBars
	* validateFields
	* callRegisteredEventBinder
	* getAnalyzerData
	* refresh
	* renderTemplate
* Introduce `ScoreFormatter.getUndefinedScores` to retrieve all the undefined scores from a scores array.
* Introduce `missingArgument` error that is thrown when an argument is missing in the `App`.
* Massively reduce the required config of the `App`.

### Enhancements

* Start to decouple the SnippetPreview from the scrapers and the analyzer.
* Depend on lodash to improve the readability of our codebase and to standardize certain actions.
* Add an option to the `SnippetPreview` to include a date before the meta description.
* Add a `baseURL` option to the `SnippetPreview` to change the base URL.
* Change the stopwords check to a grey bullet that doesn't count towards the total score.

### Bugfixes

* By default add a trailing slash to the rendered URL, add an option to the `SnippetPreview` to disable this behaviour.
* Show the protocol in the snippet preview if it is HTTPS. Google has this behaviour as well.
* Color the meta description preview gray if the user hasn't set it explicitly.

## 1.0: November 18th, 2015

### Backwards incompatible changes

* Removed `YoastSEO.app.addToQueue` method.
* Removed `YoastSEO.app.removeFromQueue` method.
* Removed `YoastSEO.SnippetPreview.setFocusToEnd` method.
* Changed class name of progress bar from `wpseo_msg` to `YoastSEO_msg`. [3fa27b8](https://github.com/yoast/yoastseo.js/commit/3fa27b8)
* Changed ID of progress bar from `wpseo-plugin-loading` to `YoastSEO-plugin-loading`. [3fa27b8](https://github.com/yoast/yoastseo.js/commit/3fa27b8)
* `config.sampleText.url` has been removed in favor of `config.sampleText.baseUrl` and `config.sampleText.snippetCite`.
* `YoastSEO.Pluggable` now needs to be instantiated with a valid `YoastSEO.App` object. [ce32d4a](https://github.com/yoast/yoastseo.js/commit/ce32d4a)
* Removed `YoastSEO.App.init` method. [b720553](https://github.com/yoast/yoastseo.js/commit/b720553)
* Removed `YoastSEO.App.loadQueue` method. [b720553](https://github.com/yoast/yoastseo.js/commit/b720553)
* Move `YoastSEO.App.queue` to `YoastSEO.App.rawData.queue`. [b720553](https://github.com/yoast/yoastseo.js/commit/b720553)
* Removed `YoastSEO.App.defineElements` method. [b720553](https://github.com/yoast/yoastseo.js/commit/b720553)
* Removed `YoastSEO.App.showMessage` method. [b720553](https://github.com/yoast/yoastseo.js/commit/b720553)
* Removed `YoastSEO.initialize` method. [b720553](https://github.com/yoast/yoastseo.js/commit/b720553)
* Removed `YoastSEO.getAnalyzerInput` method. [b596d41](https://github.com/yoast/yoastseo.js/commit/b596d41)
* Removed `YoastSEO.runAnalyzerCallback` method. [b596d41](https://github.com/yoast/yoastseo.js/commit/b596d41)
* Removed `YoastSEO.noKeywordQueue` method. [b596d41](https://github.com/yoast/yoastseo.js/commit/b596d41)
* Removed `YoastSEO.InputGenerator` in favor of `YoastSEO.ExampleScraper`, don't use this! This is only meant as an example. [af05e7d](https://github.com/yoast/yoastseo.js/commit/af05e7d)
* Removed `args.snippetTitle`. The snippet title will now always be rendered following `args.pageTitle`. [1cf3e23](https://github.com/yoast/yoastseo.js/commit/1cf3e23)
* Changed arguments of `YoastSEO.ScoreFormatter` [116bdfd](https://github.com/yoast/yoastseo.js/commit/116bdfd), [9473dce](https://github.com/yoast/yoastseo.js/commit/9473dce) and [34f7657](https://github.com/yoast/yoastseo.js/commit/34f7657):
	* `args.pageAnalyzer` removed in favor of `args.scores` and `args.overallScore`.
	* `args.config.targets.output` removed in favor of `args.outputTarget`.
	* `args.config.targets.overall` removed in favor of `args.overallTarget`.
	* Introduced `args.keyword`.
	* Introduced `args.saveScores`.

### Features

* Added `YoastSEO.SnippetPreview.getUnformattedText` and `YoastSEO.SnippetPreview.setUnformattedText, getter and setter for the unformatted text property. [682ec6d](https://github.com/yoast/yoastseo.js/commit/682ec6d)
* Added fallback for meta description to the text that is analyzed. This is prioritized after the excerpt but before the sample text.
* Added a `config.snippetSuffix` to include some text before the snippet title.
* Added `YoastSEO.Analyzer.addAnalysis` to add an analysis on the analyzer object. [ddec6b7](https://github.com/yoast/yoastseo.js/commit/ddec6b7)
* Added `YoastSEO.AnalyzeScorer.addScoring` to add a scoring on the scoring object. [ddec6b7](https://github.com/yoast/yoastseo.js/commit/ddec6b7)
* Added `YoastSEO.App.registerTest` to add a new test to the analyzer. [ddec6b7](https://github.com/yoast/yoastseo.js/commit/ddec6b7)
* Added `YoastSEO.AnalyzerScoring.getTotalScore` to retrieve the total score. [72f368a](https://github.com/yoast/yoastseo.js/commit/72f368a)

### Enhancements

* Improved default value of the base url in the snippet preview. [a1d805a](https://github.com/yoast/yoastseo.js/commit/a1d805a)
* Improved handling of the raw snippet preview content so we the user can edit the raw string when clicking on an item in the snippet preview.
* Improved detection of container element, now uses `config.targets.output` instead of a hardcoded `wpseo_meta`
* `config.sampleText.baseUrl` is no longer required.
* Added reference to `Yoast.App` instance as a parameter to `bindElementEvents` callback.
* Automatically enable no keyword queue if there is no keyword. [b596d41](https://github.com/yoast/yoastseo.js/commit/b596d41)
* Increase snippet title length from 40 to 70 characters. [0ad7c1f](https://github.com/yoast/yoastseo.js/commit/0ad7c1f)
* Re-render snippet preview after each analysis. [3d080b8](https://github.com/yoast/yoastseo.js/commit/3d080b8)
* Use `input` event to bind to snippet preview change instead of `change`. [4675a9f](https://github.com/yoast/yoastseo.js/commit/4675a9f)
* Don't use `args.overallTarget` if it isn't set. [7ce7ea4](https://github.com/yoast/yoastseo.js/commit/7ce7ea4)

### Bugfixes

* Fixed snippet preview so only the full focus keyword is highlighted and not words that contain the focus keyword. [3655d13](https://github.com/yoast/yoastseo.js/commit/3655d13)
* Fixed scoring so 0-3 now mean a bad score and no-keyword is a special score. [ad8a085](https://github.com/yoast/yoastseo.js/commit/ad8a085)
* Fix scoring for title length.
* Sanitize keyword before using it as a regex to prevent the regex from breaking. [2d95fcb](https://github.com/yoast/yoastseo.js/commit/2d95fcb)
* Style the snippet title `inline-block` to make the overflow hidden.
* Style the snippet site url `inline` to make the overflow hidden.

## 1.0-beta2: September 23st, 2015
* Fixes a bug where the slug wasn't taken into account when checking if the url contains the focus keyword.

## 1.0-beta: September 21st, 2015
* Initial beta release