2.3.1

• Fix #67 a y chars will invalid error (only in 2.3.0).

2.3.0

• Add config.outline for use outline style.
• Reduce colors down to 5 (red, blue, green, yellow and black).

2.2.0

• Add option config.length for support change number chars. (#57)
• Add option config.strikethrough for enable or disable strikethrough. (#57)

2.1.3

• Windows support fixed with send_data method. (#45)

2.1.2

• Do not change captcha when HEAD /rucaptcha.

2.1.1

• Mount engine use prepend method to get high priority in config/routes.rb.

2.1.0

• Mount Router by default, not need config now.

  IMPORTANT: Wen you upgrade this version, you need remove mount RuCaptcha::Engine line from your config/routes.rb

• Default use [:file_store, 'tmp/cache/rucaptcha/session'] as RuCaptcha.config.cache_store, now it can work without any configurations.

NOTE: But you still need care about config.cache_store to setup on a right way.

2.0.3

• Use ActiveSupport.on_load to extend ActionController and ActionView.

2.0.1

• Fix /rucaptcha path issue when config.action_controller.asset_host has setup with CDN url.

2.0.0

Break Changes!

WARNING!: This version have so many break changes!

• Use C ext instead of ImageMagick, now it's no dependencies!
• New captcha style.
• Remove len, font_size, cache_limit config key, no support now.
• Output GIF format.

1.2.0

• Add an :keep_session option for verify_rucaptcha? method to giva a way for let you keep session on verify, if true, RuCaptcha will not delete the captcha code session after validation.

1.1.4

• Fix #35 just give a warning message if not setup a right cache_store, only raise on :null_store.

1.1.2

• Fix #34 rucaptcha.root_url -> root_path, to avoid generate a http url in a https application.
• Fix spec to require Ruby 2.0.0, because there have a Module#prepend method called.

1.1.1

• Remove inspect log on verify_rucaptcha

1.1.0

• Add cache_store config key to setup a cache store location for RuCaptcha.
• Store captcha in custom cache store.

Security Notes

• Fix Session replay secure issue that when Rails application use CookieStore.

1.0.0

• Adjust to avoid lighter colors.
• Avoid continuous chars have same color.
• Use same color for each chars in :black_white mode.

0.5.1

• Make sure it will render image when ImageMagick stderr have warning messages. (#26)

0.5.0

• Fix cache with Rails 5.

0.4.5

• Removed posix-spawn dependency, used open3 instead (core funciontality), JRuby compatible (#24)

0.4.4

• Remove deprecated width, height config.
• Delete session key after verify (#23).
• Lighter text color, improve style.

0.4.2

• Fix NoMethodError bug when params[:_rucaptha] is nil.

0.4.1

• Add error message to resource when captcha code expired.

0.4.0

• Add config.colorize option, to allow use black text theme.

0.3.3

• Add config.expires_in to allow change captcha code expire time.

0.3.2.1

• Add Windows development env support.

0.3.2

• Make better render positions;
• Trim blank space.

0.3.1

• More complex Image render: compact text, strong lines, +/-5 rotate...
• [DEPRECATION] config.width, config.height removed, use config.font_size.
• Fix the render position in difference font sizes.
• Fix input field type, and disable autocorrect, autocapitalize, and limit maxlength with char length;

0.2.5

• Add session[:_rucaptcha] expire time, for protect Rails CookieSession Replay Attack.
• Captcha input field disable autocomplete, and set field type as email for shown correct keyboard on mobile view.

0.2.3

• It will raise error when call ImageMagick failed.

0.2.2

• Added locale for pt-BR language; @ramirovjr

0.2.1

• Fix issue when cache dir not exist.

0.2.0

• Added file cache, can setup how many images you want generate by config.cache_limit, RuCaptcha will use cache for next requests. When you restart Rails processes it will generate new again and clean the old caches.

0.1.4

• Fix verify_rucaptcha? logic in somecase.
• Locales fixed.

0.1.3

• zh-TW translate file fixed.
• Use xxx_url to fix bad captcha URL for config.action_controller.asset_host enabled case.

0.1.2

• No case sensitive;
• Export config.implode;
• Improve image color and style;
• Don't generate chars in 'l,o,0,1'.
• Render lower case chars on image.

0.1.1

• Include default validation I18n messages (en, zh-CN, zh-TW).

0.1.0

• First release.