Issue #2220275 by alunyov, DarrellDuane, thisisnotrealpeople, oldspot: Allow for skipping captcha based on IP Address or IP Range

Issue #3215760 by fjgarlin: Argument 1 passed to _image_captcha_check_fonts() must be of the type array, null given

Issue #3099456 by interlated, Liam Morland: Argument 2 passed to CaptchaService::insertCaptchaElement() must be of the type array

Issue #3211385 by Nick Dewitte, desierto, thomaswalther: White image captcha after update to 8.x-1.2

Issue #2959577 by BryanDeNijs, paulocs, vakulrai: Make the incorrect answer error message configurable

Issue #3089263 by Darren Oh, joachim, neclimdul, voleger, agoradesign, acbramley, NickDickinsonWilde, benjifisher, akic: Captcha Session ID broken with cacheable captcha backends

Issue #2836076 by Neslee Canil Pinto, ndf, dotist, smaz, alunyov, wundo, dmsmidt, PieterDC: Re-introduce $settings['disable_captcha'] in 8.x branch

Issue #3170158 by keshav.k, amietpatial: Add loader when user click on New captcha link, Because it takes time to load the captcha

Issue #2501699 by ddrozdik, sanjayk, naveenvalecha, m1r1k, rahulrasgon, rpayanm, nmatja, yogeshchaugule8: Fix Image CAPTCHA settings form

Issue #3032742 by joachim, pivica: captcha_cron() removes captcha_sessions that may still have open PHP sessions