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CHANGELOG
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This file contains a summary of changes to the Oppia code base.
v2.6.9 (30 Oct 2018)
--------------------
Bug fixes:
* Fixes prod bug by preventing populating old_content value of suggestion when state doesn't exist (#5772)
* Fix #5691: Fix bug in translation tab resulting from answer choices not being calculated for the short answer summaries (#5756)
* Fix #5748: Incorrect get-involved link (#5750)
* Fix #5688: Added users to user condition if only 1 user has reviewed an exploration (#5708)
New structures:
* Filter skills (#5635)
* UI and controller to add functionality to merge untriaged skills (#5632)
Infrastructure:
* Add deployment of export service to deploy.py (#5773)
* Fix Karma test to use older version of URL.
* Fix erroneous image path in production. (#5788)
* Fix broken image region #5765 (#5768)
* Throttle error reporting to at most once every 5 seconds. (#5767)
* Fix deployment script to update DEV_MODE value which is now read from constants.js instead of feconf.py. (#5763)
Developer workflow and code clean-up:
* (Dead code) Remove check 'topic is None', which is already covered by core.domain.acl_decorators.can_access_topic_viewer_page (#5737)
* Fix part of #4374: Added docstrings to scripts.cut_release_branch and scripts.pylint_extensions (#5728)
* Fix part of #4374: Update docstrings in the python backend code (#5680)
* Fix part of #5134: Add tests to core_storage_story (#5644)
* Add CSS lint rules: Space before curly braces for HTML files (#5732)
* Added test to core.storage.topic.gae_models (#5727)
* Extract extensionTagAssemblerService and siteAnalyticsService from app.js - Issue 3826 (#5711)
* Space before and after CSS classes's curly braces (#5725)
* Add additional instructions for prefixing PR title for partial fixes (#5718)
v2.6.8 (2 Oct 2018)
-------------------
Bug fixes:
* Fix persistent answer even after submit bug (#5696)
* Add sitemap and remove i18n from title. (#5647)
* Added one off job and validation job to populate last_updated field. (#5681)
* Cleanup for the feedback framework (#5631)
* Fix #5600: correctly align the translation progress label in Firefox (#5622)
* Update Teach with Oppia form link. (#5619)
* Only Force Answer Resolution for Whitelisted Interaction IDs (#5626)
* Remove unnecessary interpolation in logic proof answer display. (#5604)
* URL fix for topic viewer page (#5602)
* Fix #4893 The navigation bar in portfolio page is now clearly visible in 612 to 1050px screens. (#5588)
* Fix unicode errors in VerifyAllUrlsMatchGcsIdRegexJob which make it (#5598)
* Fix #4978 : change JSON response on user not logged in (#5589)
* Fix demo exploration--- Modelling_graphs, Solar System, Test_interactions, All_interactions, Three balls, binary_Search (#5543)
* Added the exceptions in the copytodirectoryJob (#5560)
* Fix #5535: Share buttons on info card (#5540)
Development workflow and build process improvements
* Start selenium server using a specific chromedriver (#5648)
* Run travis builds on release branches (#5645)
* Fix #5620: Add check for git conflict markers (#5624)
* Build process refactorization + increasing coverage for build.py (#5580)
* Fix creator dashboard tests. (#5579)
* Moved git related files in .github directory (#5519)
Testing and documentation:
* Remaining backend tests for jinja_utils (#5582)
* Fix part of #4374 : Update docstrings in the python backend code (#5593)
* Fix #5134: Write backend tests for core.storage.skill.gae_models (#5599)
* Backend tests for core.platform.users.gae_current_user_services (#5563)
* Fix part of #5134: Add test for core.storage.config.gae_models (#5565)
* Fix #5134: Write backend tests for core.storage.exploration.gae_models (#5552)
* Fix #4830: Create and use delete_json in tests (#5568)
* Add test class for gae_app_identity_services (#5439)
* Fix part of #5134 Backend test for audit models (#5512)
* Fix #5134: Write backend tests for core.storage.controllers.recent_commits_test (#5551)
* Forbidding browser.sleep by adding lint rule and fixing an e2e flake in editorFeatures (#5536)
Infrastructure improvements
* Removed unwanted file and added css in state translation (#5658)
* Introduce IssuesService (#5630)
* Add some additional headers to all pages for privacy/security. (#5596)
* Deduplicate skill migrate questions (#5376)
* Fix #4386: Implement a CurrentInteractionService (#5440)
* Add skill deletion. (#5375)
* Added StoryProgressModel (#5396)
* Fully remove state-id-mapping flag. (#5562)
* Refactor exploration player: Cleaned up the engine services (#5533)
* Create Topic Viewer Page. (#5323)
* Fix #5256: Separate validation and parsing from directive scope check function (#5541)
* Fixes #5402: State domain refactor (#5505)
* Removed the ValidationOfImagesOnGCSJob (#5538)
* Fix dependency ordering, and prevent questions from showing up on the common suggestions view (#5531)
* Question suggestions UI (#5486)
* Remove Dead Changes (#5528)
* Generalised Review System: Common suggestion view (#5419)
* Add functionality for pretests to explorations in a story. (#5479)
* Fixed #5425: Redesign fractions landing page (#5527)
Miscellaneous
* "Update version number to 2.6.8"
* Routine update to translations. (#5608)
* Add apb7 and seanlip as codeowners for core/tests and scripts directory (#5578)
v2.6.7 (3 Sep 2018)
-------------------
Rich-text editor
* Add one-off job to validate customization args for rich text components (#5362)
* Removed extra blank lines in RTE (#5401)
* Removed previews for rich text components (#5352)
* Removed indentblock to allow indentation only for list elements (#5318)
* Remove the text that comes when cursor is moved over editor (#5288)
* Fixed issues that popped up due to migration to CKEditor (#5255)
* Added CKEditor as current RTE and conversion function (#5229)
* Fix issue #5423 (#5424)
Statistics
* Permamently flip ENABLE_STATE_ID_MAPPING to true (#5523).
* Disable modify training data button until ML is enabled. (#5328)
* Convert all floating point numbers back to float from strings in received classifier data (#5291)
* Fix cast and improve output messages in stats job. (#5312)
* Allow machine learning classification in editor preview mode of exploration (#5239)
New structures
* Suggestions for questions part 1: Backend domain class and controllers (#5361)
* Create reusable question editor directive: Part 2 (#5406)
* Create reusable question editor directive: Part 1 (#5367)
* Replace jinja with directives in state_editor.html (#5353)
* Create question editor (Part 2): Created backend controllers (#5321)
* Dedup skill schema changes (#5283)
* Added concept card viewer in the exploration player (#5265)
* Add skill rights and unpublished skills (#5277)
* Create question editor (Part 1): Added frontend domain objects (#5309)
* Modified the questions backend (#5293)
* Tag prerequisite skill to answer group (#5238)
* Added untriaged skills section to the topics and skills dashboard (#5219)
Image pipeline
* Misc fixes to image GAE/GCS migration (#5609)
* Fix unicode errors in VerifyAllUrlsMatchGcsIdRegexJob which make it (#5598)
* Fix remaining issues in migration job. (#5595)
* Fixes to CopyToNewDirectoryJob (#5594)
* Encode the filename by utf-8 (#5584)
* Added the exceptions (#5560)
* Corrected an error in html_validation_service.py (#5534)
* Fix issue in html_validation_service (#5522)
* Corrected the FILE_ID_MODEL regex to support deletion of images from datastore. (#5521)
* Implement exploration migration to update image references. (#5509)
* Shifting images/audio to the new exploration folder, which involves compressing and renaming the images as well. (#5490)
* Fix: #5407 changed to click to reload image (#5449)
* Removed the ENABLE_GCS_STORAGE_FLAG, and add develop condition for PIL in appengine_config (#5492)
* Added the PR for the Mac os troubleshoot and inside gae_suite.py in test (#5480)
* Delete image from gae (#5393)
* Create compressed versions of images. (#5450)
* Fixes ImageDataMigration JOB (#5405)
* Fixes the comments in ImageDataMigration PR (#5271)
* Fixes #5209 Removing preloading completely from preview mode. (#5237)
Development workflow
* Fix part of #5399: Comparing MD5 hash to prevent unnecessary files rebuilding (#5468)
* Change print check regexp (#5474)
* Fix #5106: Changed startup script to open browser after starting server (#5431)
* Improving the dev workflow: Setup browserstack, add necessary configuration files and tests for mobile (#5340)
* Get rid of TEMPLATE_DIR_PREFIX and ASSET_DIR_PREFIX (#5397)
* Fix #5337: Parallelize build minification (#5379)
* Add comment to .travis.yml (#5383)
* Attempt to fix Chrome on Travis (#5382)
* Fix #5004: Modify keyword arguments checker (#5305)
* Improving the dev workflow: Add check for double quotes for values of attributes of html tags (#5246)
* Improving the dev workflow: Enable indent rule for CSS (#5242)
* Fix part of #3905: Add check to match line breaks between stringfied dependencies and controller function parameters (#5225)
* Add forceLocal argument to browserstack local instance (#5435)
Interactions
* Fixed code editor issue (#5615)
* Fix #5494: Fix second item selection issue in CKEditor for Drag and drop interaction. (#5513)
* Fix #5280: Fix auto-scrolling mechanism in Drag and drop sorting interaction. (#5499)
* Fix hola exploration (#5498)
* Add ui-tree to app.js (#5473)
* Enable drag and drop sorting interaction. (#5429)
* Fix #5172: TextInput learner response display should preserve line breaks (#5430)
* Drag and drop interaction: Milestone 3.2 (#5338)
* Fix #5301: Disabled required spacing in the currency units in Number with Units interaction (#5320)
* Fix #5253: Fixed hiding of Continue button when correctness footer is present (#5276)
* Drag and drop interaction: Milestone 2.3 (#5162)
* Adding pip cache directory (#5281)
Generalised review system
* Bug fixes for the feedback framework (#5467)
* Generalised Review System, complete email functionality (#5387)
* Carry forward last updated and created on fields to the new models (#5495)
* Generalised Review System - Email notification functionality (#5245)
* Remove invalid status codes (#5460)
* Fix ordering of suggestions on feedback tab. (#5404)
* Generalised review system - Feedback thread generalisation (#5235)
* Generalised review system: Milestone 2 - Changes to permissions of users who can review suggestions (#5170)
* Fix suggestions subject not displayed (#5273)
* Generalised Review System - A generalised function to query suggestions (#5164)
* Fix build (#5269)
* Generalised Review System Milestone 2: Cron job to automatically accept suggestions after a threshold (#5155)
* Fix a backend test after switching the flag (#5206)
Translation dashboard
* Fix #5558: Fixed translator email functionality. (#5559)
* Milestone 3.5: Lesson translation dashboard. (#5506)
* Milestone 3.4: Lesson translation dashboard. (#5483)
* Milestone 3.1 & 3.2: Lesson Translation Dashboard. (#5378)
* Milestone 2.5: Lesson Translation Dashboard (#5279)
* Removes audio translation editor from editor tab and enables translation tab. (#5413)
* Milestone 2.4: Lesson translation dashboard (#5210)
* Fixed publish button (#5227)
Playthroughs and issues
* Added recorder config (#5496)
* Playthrough Visualisation: Milestone 3.2 (Part 6) (#5428)
* Playthrough Visualisation: Milestone 3.2 (Part 4) (#5421)
* Playthrough Visualisation: Milestone 3.2 (Part 5) (#5422)
* Playthrough Visualisation: Milestone 3.2 (Part 3) (#5373)
* Playthrough Visualisation: Milestone 3.1 (#5167)
* Playthrough Visualisation: Milestone 3.2 (Part 2) (#5364)
* Unique session IDs for starts and quits (#5392)
* Fix errors in the RegenerateMissingStatsModelsOneOffJob. (#5388)
* Handle incoming None version events (#5372)
* More fixes to stats jobs from running on test server. (#5366)
* Handle exploration reverts for ExplorationStatsModel (#5356)
* Fix exploration ID field bug (#5360)
* Add CSS for Hexagon (#5168)
* Fix variable declaration error (#5351)
* Fix #5274: Open modal window only once (#5346)
* Fix playthroughs bug (#5339)
Bug fixes
* Remove unnecessary dependency. (#5610)
* Added volume to the speechUtterance (#5561)
* Fix #5535: Share buttons on info card (#5540)
* Fixed borders around feedback headers (#5532)
* No object assign (#5444)
* Fix #5386: start.sh produces an error when using VirtualBox "no method available for opening 'http://localhost8181/'" (#5391)
* Fixes #5299: Reduce font-weight to render consistently across browsers (#5331)
* Fix #5287: Deletes feedback content id while deleting interaction. (#5294)
* Remove some files that were skipped and caused math expression input to break. (#5284)
* Fixing PieChartDirective console error (#5282)
* Fixating position of preview tab's reset button to bottom right corner. (#5272)
* Fixing Fraction Input weird padding. (#5267)
* Fix #5071: Replace closeSubmenu with closeSubmenuIfNotMobile to make dropdown menu work (#5261)
* Stop submit button for MultipleChoiceInput from firing ng-click twice (#5266)
* Replacing Youtube video link (#5264)
* Updated last update coloumn (#5564)
Miscellaneous
* Add Code of Conduct (#5475)
* Replaced Static images with Font awesome (#5443)
* Address some learner view errors found in production. (#5459)
* Display Cards with many Unresolved Answers (#5442)
* Fix #5398: remove UrlInterpolationService's whitelist check. (#5410)
* Only log when versions are actually regenerated. (#5394)
* Caching Chrome to prevent test timing out by Travis failing to download Chrome. (#5385)
* Readme updated. (#5384)
* Production fixes for the stats job. (#5377)
* Routine update of translations (#5359)
* Remove unused test_util_jobs.py file. (#5358)
* Remove unused feconf constants (#5350)
* Fix #5336: Added brackets to valid url characters (#5354)
* Refactor the delete-state-callback test. (#5349)
* Manually Construct URL (#5345)
* Fixes #5298: Add Oppia Foundation to sidebar (#5332)
* Fix part of #5002: Get rid of profilePictureDataUrl global (#5290)
* Downloading file(s) dependency instead of entire Github folder. (#5313)
* Add codeownership control for html_cleaner.py (#5327)
* Add Vojta and Viet as code owners for manifest.json. (#5306)
* Fixes #5260: Unable to type anything in the Math expression input box in mobile (#5289)
* Fix #4838: Ternary operator scope creation (#5262)
* Extensions: Removing unconsumed console error entries (#5250)
* Remove app.js from excluded_files (#5248)
* Adding pip cache to Travis config. (#5244)
* Only append to the general error log for non-404 errors. (#5241)
* Downgrade 404 logs to warnings. (#5233)
* Update deploy script. (#5231)
Testing, documentation, and code health
* Fix part of #5134 Backend test for collection models (#5357)
* core.platform.taskqueue.gae_taskqueue_services: Add tests (#5451)
* Refactor exploration player (#5437)
* Fixed backend test fail issue (#5448)
* Fix part of #5134: Add test for core.domain.calculation_registry (#5381)
* Create backend services and controllers for exploration pretests (#5418)
* Fix #5134: Write backend tests for core.storage.job.gae_models (#5433)
* Fixed part of #5134: core.domain.user_domain_test file! (#5380)
* Fix part of #5134.: Added tests for memcache services (#5355)
* Fix #5314: Reinstate failing Karma test. (#5347)
* Fixed part of #4057: FormBuilder tests (#5322)
* Fix docstrings for acl_decorators (#5311)
* Math Expression Input e2e (#5292)
* Refactored ExplorationContextService (#5278)
* Migrate the remaining waits to use the waitFor library. (#5270)
* Fix part of #5002: Moved some constants from GLOBALS to other places. (#5191)
* Some initial changes to use the new waitFor utility. (#5258)
* Add check for browser.waitForAngular calls (#5249)
* E2e refactor follow-up for PR#5139 (#5224)
* E2e testing: Introducing waitFor utility file. (#5240)
* Graph Interaction e2e Test (#5230)
v2.6.6 (1 Aug 2018)
-------------------
Rich-text editor
* Added CKEditor as current RTE and conversion function (#5229)
* Added try catch in MigrationValidation for CKEditor (#5198)
* CKEditor Integration - Milestone 2 (#5150)
* Updated ol-ul migration - Milestone 2 (#5192)
* Updated Migration process on the basis of cases obtained from test server (#5185)
* Added MigrationValidation one-off job for CKEditor - Milestone 2 (#5169)
* Added validation one-off job for CKEditor - Milestone 2 (#5161)
* Added migration function for Textangular - Milestone 1 (part 2) (#4985)
* Fixed errors based on cases in dump from server (#5213)
* Updated the Migration function for CKEditor (#5228)
* Fixed issues that popped up due to migration to CKEditor (#5255)
* Remove the text that comes when cursor is moved over editor (#5288)
* Removed indentblock to allow indentation only for list elements (#5318)
Statistics
* Fix part of #3836: Milestone 1, introduce new calculation to aggregate top unresolved answers. (#5006)
* Introduce StateTopAnswerStatisticsFactory (Part 1) (#5026)
* Split Backend Call API from the StateTopAnswerStatisticsService (#5079)
* Hide unresolved student answers when the exploration is private, since there is no data to show. (#5080)
* Add hooks to StateTopAnswerStatsService to keep it fresh and make IssuesOverview card use it (#5089)
* Fix #3836: Upgrade training interface to show unresolved answers. (#5098)
* Add comment to describe conflict with libsvm's prediction function. (#5215)
* Remove protractor-add-test-answer css class from modify training data (#5216)
* Disable modify training data button until ML is enabled. (#5328)
New structures
* Added validations to topic editor (#5178)
* Added validations to story editor (#5195)
* Create Topic Editor (Part 1): Added frontend domain objects for topics. (#5090)
* Create Topic Editor (Part 2): Created Topics and Skills dashboard (#5094)
* Create Topic Editor (Part 3): Create the editor UI (#5112)
* Create Topic Editor (Part 4): Added more functions to edit topics (#5119)
* Create Topic Editor (Part 5): Added subtopic page editor (#5142)
* Create Topic Editor (Part 6): Added skill id management for subtopics (#5166)
* Create Story Editor (Part 1): Added frontend domain objects (#5131)
* Create Story Editor (Part 2): Add create and delete story functionalities (#5148)
* Create Story Editor (Part 3): Create Story Editor UI (#5152)
* Create Story Editor (Part 4): Create story node editor (#5159)
* Added SubtopicPage model (#5053)
* Modified topic and story models (#5049)
* Modified add_node function in stories (#5035)
* Added skills mastery model (#4997)
* Implementing QuestionSkillLink Model and Domain (#5025)
* Added deepcopy to Change objects (#5038)
* Added controllers for topics, skills and stories: Part 1 (#5013)
* Added update and delete for stories. (#4988)
* Exploration Migration to add skill_id and tagged_misconception_id fields (#5031)
* Add core skill editor (#5154)
* Fixed lint error in #5154 (#5217)
* Fix #5202: Moved topic and story validations to their respective objects (#5211)
Image pipeline
* Remove the code that uploaded the filepath as an object (#5173)
* Fix #5177: Added migration function to ensure caption in images (#5179)
* Extract relevant commits from change list in ExplorationStateIdMapping (#5189)
* Fixed preview error in ImageRegions interaction (#5149)
* Added try again button. (#5087)
* Added a loading indicator gif. (#5029)
* PR2: Images get uploaded to GCS in production mode and GAE in dev mode (#5160)
* One-off Job for shifting images from GAE to GCS (#5153)
* Fixes #5209 Removing preloading completely from preview mode. (#5237)
* Fixes ImageDataMigration job (#5405)
Development workflow
* Fix part of #5134: Add tests for activity domain (#5194)
* Reduce daysUntilStale to 7 (#5187)
* Add arg name to arg with default values. (#5180)
* Modify html indent function (#5171)
* Upgraded coverage version (#5127)
* Fix package installation on Travis (#5146)
* Removed exception from templateUrl linter (#5135)
* Improving the dev workflow: Add restrict check for directives (#5068)
* Added notes to run single e2e and unit tests. (#5116)
* Add node path to stylelint cmd args (#5117)
* Fix #5009: Add wait for suggestions e2e test (#5109)
* Improving the dev workflow: Milestone 1.2.3 Enable checks for directive scope (#4980)
* Improving the dev workflow: Custom import check for modules (#5078)
* Move .oppia-creator-dashboard-main-content to creator_dashboard.html and remove padding property (#5022)
* Improving the dev workflow: Separate CSS selectors from oppia.css (#5018)
* Improving the dev workflow: Setup lint check for CSS and fix corresponding errors (#4643)
* Fix part of #4347 Included docstrings in various functions in scrips/custom_lint_checks.py (#5034)
* Add bad_patterns_python_regexp (#5042)
* Fix #5157: Add check for copyright notice (#5197)
* Modify stale config (#5214)
Interactions
* Add currency units to the Number with Units interaction (#5175)
* Drag and Drop Interaction: Milestone 2.2 (#5137)
* Drag and drop interaction: Milestone 2.1 (#5118)
* Added help table for Number with Units Interaction (#5124)
* Number with Units Interaction: Milestone 1.3 (#5028)
* Add angular-ui-tree dependency. (#5110)
* Stop submit button for MultipleChoiceInput from firing ng-click twice (#5266)
* Fixing Fraction Input weird padding. (#5267)
* Remove some files that were skipped and caused math expression input to break. (#5284)
* Fixes #5260: Unable to type anything in the Math expression input box in mobile (#5289)
* Fix #5301: Disabled required spacing in the currency units in Number with Units interaction (#5320)
Generalised review system
* Generalised review system: Validation job for the suggestion migration (#5174)
* Generalized Review System - Milestone 1.1 (Part 3): Suggestion services (#4982)
* Generalized Review System - Milestone 1.2 : Suggestion controllers and wiring up to frontend (#5093)
* Generalized Review System Milestone 1.3 - Migration job for suggestion framework (#5043)
* Generalised Review System Milestone 2: Add user contribution scoring models (#5128)
* Added test for unique model names and renamed SuggestionModel to GeneralSuggestionModel (#5016)
* Removed assigned reviewer field (#5203)
* Fix a backend test after switching the flag (#5206)
* Generalised Review System Milestone 2: Cron job to automatically accept suggestions after a threshold (#5155)
* Fix suggestions subject not displayed (#5273)
* Fix ordering of suggestions on feedback tab. (#5404)
Translation dashboard
* Milestone 2.3: Lesson translation dashboard. (#5163)
* Milestone 2.1 & 2.2: Lesson translation dashboard. (#5122)
* Minor fix in getNeedsUpdateTooltipMessag. (#5136)
* Milestone 1.2: Lesson translation dashboard. (#5099)
* New state structure. (#5007)
* Fix #5287: Deletes feedback content id while deleting interaction. (#5294)
Playthroughs and issues
* Rename flag for enabling playthroughs (#5165)
* Playthrough Visualisation: Milestone 2.2 (Part 3) (#5156)
* Playthrough Visualisation: Milestone 2.2 (Part 2) (#5058)
* Playthrough Visualisation: Milestone 2.2 (Part 1) (#5133)
* Added unit test for exploration reverts effect on exploration issues model (#5147)
* Set ENABLE_PLAYTHROUGHS to True (#5132)
* Playthrough Visualisation: Milestone 1.2 (Part 3) (#4952)
* Playthrough Visualisation: Milestone 2.1 (#5015)
* Only enable Playthrough recording for Fractions collection (#5190)
* Fix exploration ID field bug (#5360)
Bug fixes
* Fix #5063: Hint button should not appear for terminal or linear interactions (#5125)
* Fix #5111: remove notification preferences card from non-editors.
* Fixed publish button (#5227)
* Fix #5071: Replace closeSubmenu with closeSubmenuIfNotMobile to make dropdown menu work (#5261)
* Fixating position of preview tab's reset button to bottom right corner. (#5272)
* Fix #5398: remove UrlInterpolationService's whitelist check. (#5410)
* Fix #5336: Added brackets to valid url characters (#5354)
* Manually Construct URL (#5345)
* Fix #5274: Open modal window only once (#5346)
* Fix playthroughs bug (#5339)
* Fix #5253: Fixed hiding of Continue button when correctness footer is present (#5276)
Miscellaneous
* Create CODEOWNERS (#5032)
* Update CODEOWNERS to include all storage models & add Sean as an owner (#5186)
* Fix #5000 add check for response status in get_json (#5001)
* Routine translations update. (#5101)
* Fix part of #3950: Replace DEV_MODE and feedback URL Jinja Template in base.html (#5048)
* Added a few new skipped folders (#5196)
* Reduce the number of files that are uploaded to production. (#5181)
* Only append to the general error log for non-404 errors. (#5241)
* Update deploy script. (#5231)
* Downgrade 404 logs to warnings. (#5233)
* Fix build (#5269)
* Only log when versions are actually regenerated. (#5394)
* Unique session IDs for starts and quits (#5392)
* Fix errors in the RegenerateMissingStatsModelsOneOffJob. (#5388)
* Production fixes for the stats job. (#5377)
* More fixes to stats jobs from running on test server. (#5366)
* Handle exploration reverts for ExplorationStatsModel (#5356)
* Fix variable declaration error (#5351)
* Fix cast and improve output messages in stats job. (#5312)
Testing, documentation and code health
* Readability Improvements to save_new_linear_exp_with_state_names_and_interactions (#5023)
* Adds YouTube error logs as expected error for e2e test. (#5046)
* Fix part of #4057: Adding tests for audio language objects (#5061)
* Break up factories (#5073)
* Fixed docstring (#5096)
* Fix #5044: Added a named constant for revert commit command (#5102)
* Fix part of #3968: ParamMetadataObjectFactory domain object (#5082)
* Fix backend load test (#5120)
* Reference directive templates directly in /extensions/objects (#5121)
* Rename AudioLanguage's "text" attribute to "description" and update e2e documentation for running individual suite (#5126)
* Remove jquery themes (#5207)
* Removed the fileInfoObject (#5205)
* Add e2e functions patterns to BAD_PATTERNS_JS_REGEXP (#5208)
* Fix #5105: GraphInput Viewbox console errors (#5212)
* Fix part of #3954: Exploration Editor Page Object (#5139)
* Refactor the delete-state-callback test. (#5349)
v2.6.5 (18 June 2018)
--------------------
Miscellaneous user-facing:
* Fix #4882: Moved subscribe button to profile card (#4892)
* Fix #4781: Fixed Code editor zoom in problem (#4921)
* Minor improvements to html_cleaner.convert_to_text_angular for readability. (#5070)
* Fix #5041 and #5033: Hide unresolved student answers when the exploration is private, since there is no data to show. (#5080)
* Fix #5083: Audio needs update span disable for guest users. (#5091)
* Fix #5088: Removed refresh option from the create view (#5100)
Infrastructure and testing
* Fix #2255: Remove commons folder and transform toast icons to material (#4898)
* Added the enable_console flag (#4949)
* Add build before frontend tests (#4972)
* Fix e2e tests on accepting a suggestion on a published exploration (#4917)
* Change visibility of two protected methods in exp_domain (#4933)
* Fixes backend tests (#5014)
* Fixes part of #4057: Added spec for InteractionDetailsCacheService (#4889)
* Fix travis build (#5003)
* Fix change dict list in ExplorationStateIdMapping job (#5027)
* Added MigrationValidation one-off-job (#5050)
* Fix for error in migration validation testing (#5054)
* Update chromedriver version from 2.39 to 2.40 (#5059)
* Final Checking for the migration (#5065)
Statistics:
* Introduce get_state_answer_stats for StateAnswersStatisticsService (#4963)
* Handler hook (#4964)
* Fix #2249: E2e tests for exploration statistics (#4357)
* Fix part of #4666: Fix code classifier prediction service and correct frontend tests. (#4922)
* Modify the interval calls for storing stats (#4994)
* Fix #4190: Fix ExplorationStateIdMapping MR job. (#4914)
Translation Dashboard:
* Add translator role for the exploration (M1.1 Lesson translation dashboard) (#4959)
RTE Upgrade:
* Content validation script to validate TextAngular content : Milestone 1 (part 1) (#4947)
* Follow-up PR for the content validation one-off job (#4969)
* Include html strings in the output of Content Validation job (#5020)
New interactions:
* Number with Units Interaction: Milestone 1.1 (#4941)
* Add math.js dependency (#4950)
* Number with Units Interaction: Milestone 1.2 (#4979)
Improve image loading pipeline:
* Ml1.1 Improve the image loading pipeline (#4954)
* PR 2.1 : Added ExtractImageFilenamesFromStateService (#4965)
* Added the ImagePreloaderService and edited the ImageDirective (#4990)
* Moved the ExplorationDict back to the ExtractImageFilenamesFromStateSpec.js and added documentattion to ExtractImageFilenamesService.js (#4993)
* Ammendments to image preloading. (#5030)
* Amendments to the image Preloading( error case) (#5062)
Generalized review system:
* Generalized Review System: Milestone 1 (part 1) (#4943)
* Generalized Review System - Milestone 1.1 (Part 2): Add Suggestion domain class (#4966)
* Remove ambiguous definitions of thread_id in various places in the feedback and suggestion framework (#4971)
Skills, topics and stories:
* Fix #4847: Add a new role for topic manager and create TopicRightsModel (#4871)
* Add Functionality for Skills: Milestone 1.1 (#4953)
* Added domain objects and services for Topics: Milestone 1.2 (Part 1) (#4981)
* Added domain objects and services for Skills: Milestone 1.2 (Part 2) (#4983)
* Fix #4904: Update questions backend to align with Skills construct (#4920)
* Added update and delete for Skills (#4992)
* Added update and delete for topics (#4991)
Development Workflow:
* Improving the dev workflow: Milestone 1.1.1 Enable Pycodestyle rules and fix errors (#4937)
* Modify _lint_html_files function and enable rules (#4910)
* Add Email to Travis recipients (#4938)
* Create stale config for oppiabot (#4940)
* Improving the dev workflow: Milestone 1.1.2 Update Pylint (#4939)
* Fix part of #3905: Add checks for directive scope (Part 1) (#4848)
* Fixes #4956: Change Pylint version (#4957)
* Improving the dev workflow: Milestone 1.2.2 Enable in-built JS rules (#4948)
* Improving the dev workflow: Milestone 1.2.1 Enable in-built angular rules (#4945)
* Improving the dev workflow: Milestone 1.1.3 Custom pylint checks (#4967)
* Improving the dev workflow: Separate CSS selectors from oppia.css (#5012)
* Improving the dev workflow: Setup custom HTML indent function (#4987)
* Improving the dev workflow: Separate About selectors from oppia.css (#5011)
Playthrough Visualisation:
* Playthrough Visualisation: Milestone 1.3 (#4984)
* Validity for issues instead of playthroughs (#4977)
* Playthrough Visualisation: Milestone 1.2 (Part 2) (#4946)
* Playthrough Visualisation: Milestone 1.2 (Part 1) (#4944)
* Playthrough Visualisation: Milestone 1.1 (Part 6) (#4935)
* Playthrough Visualisation: Milestone 1.1 (Part 5) (#4934)
* Playthrough Visualisation: Milestone 1.1 (Part 4) (#4928)
* Playthrough Visualisation: Milestone 1.1 (Part 3) (#4927)
* Playthrough Visualisation: Milestone 1.1 (Part 1) (#4918)
* Playthrough Visualisation: Milestone 1.1 (Part 2) (#4919)
Docstrings:
* Replaced Content in docstrings (#4929)
v2.6.4 (24 May 2018)
--------------------
Creator View:
* Fix part of #3446: Add frontend validators to End Exploration. (#4828)
Library & Learner Dashboard:
* Fix #3977: Added tooltip for Collections in Learner Dashboard (#4850)
* Fixes #4323: Fixed creator's option to add to playlist (#4863)
* Fix #4924: Fixed exploration count error. (#4960)
UI (General):
* Partial Fix #3025: A keyboard user should be able to expand dropdown menus. (#4844)
* Fix #4756: Duplicate cookies issue fix. (#4903)
Linting:
* Add check for parens (#4849)
* Setup htmllint (#4900)
* Enable lint checks for pre-commit script (#4869)
Docstrings:
* Fix part of #4374: Add docstrings to python files. (#4856)
* Fix part of #4374: update docstrings for jobs (#4851)
Skills project:
* Fix #4846: Remove "Collection Skills" (#4862)
Infrastructure and Refactoring:
* Fix part of #4057: Add spec file of AutoplayedVideosService (#4805)
* Fix nit comments in ExplorationStateIdMappingJob (#4860)
ML:
* Fix #3287: Enable training data classification in answer classification service (#4824)
* Exploration states dict migration: Migrate training data to answer group and remove it from rule specs. (#4890)
* Print stack trace of exceptions in ExplorationStateIdMappingJob (#4861)
v2.6.3 (23 Apr 2018)
--------------------
Creator View:
* Fix #4693: Changed timeout for "solution error" popup to 4 seconds. (#4706)
* Fix #4530: Removes extra lines and spaces at the end of string in RTE (#4799)
* Show "issues overview" card on state editor (#4744)
* Fix part of #3446: Add frontend validators to CodeRepl Interaction (#4832)
* Fix #4663: Added CSS to fix overflowing content out of stats modal. (#4664)
* Fix #4714: Fix alignment of button and text in exploration settings tab. (#4811)
* Fix #3982: Added 'open' in the open feedback thread summary. (#4767)
* Fix #4872: Fix overflowing feedback thread count for large numbers. (#4873)
* Fix #4857: Fixed feedback message status displaying incorrectly (#4865)
Learner and Creator Dashboards:
* Fix #2620: Remove the dead zone and hardcoded height in card view on dashboard (#4791)
* Fix #3971: Add activity indicator to feedback updates (#4785)
* Fix #3983: Reorder tabs in Learner Dashboard to make them more intuitive. (#4809)
* Fix #4875: Removed dead zone in card view of creator dashboard (#4878)
Library:
* Fix #4056: There is no way to add an exploration/collection into play-later list for mobile users. (#4709)
* Fix #4813: Fix icon positioning in search category dropdown (#4817)
* Fix #4422: Add search option in library for mobile users (#4807)
* Fix #4864: On mobile, two icons are visible on the exploration/collection cards at the same time. (#4879)
Learner View:
* Fix #4367: Prevent null-submission for MathExpressionInput interaction (#4753)
* Fix #4055: Removes redundant CSS selector from conversation_skin_directive.html (#4790)
* Fix part of #4364: Add sprinkles to the correctness footer (#4770)
* Fix #4884: Remove correctness footer when navigating (#4899)
Fractions Landing Page:
* Update content and change font-size for tablet view for the Fractions landing page. (#4897, #4908)
Questions project
* Fix #3009: Final milestone of questions project (#4574)
Dependencies and build process
* Fix #4519: Move third-party build process into python. (#4831)
* Remove reference to master branch from CHANGELOG (#4852)
* Remove unused angular dependencies injected into controllers (#4792)
* Fix git push error when branch has same name as directory. (#4834)
* Upgrade ESLint to 4.19.0 (#4825)
* Upgrade guppy version to b5055b (#4709)
* Upgrade GAE version to 1.9.67. (#4786)
* Remove numpy as a dependency. (#4808)
Infrastructure:
* Removed create_classifier_training_job and updated the unit tests. (#4827)
* Add more detailed logging for StateIdMapping one off job. Add realtime logging to build script when deploying. (#4853)
* Allow ExplorationStateIdMappingJob to overwrite StateIdMapping models (#4854)
* Handle schema migration from exp schema v1 to exp schema v2 in ExplorationStateIdMappingJob (#4858)
* Address issues with e2e tests by having each suite contain only one test file. (#4896)
* Linting checks added:
* Fix part of #3905: Add check for keyword arguments (#4752)
* Fix part of #3905: Add check for period at ends of comments and docstrings (#4759)
* Fix part of #3905: Add check to ensure all HTML directives end with _directive.html (#4839)
* Merge _check_spacing function with _lint_py_files function and remove redundant code (#4840)
Karma tests:
* Fix part of #4057: Add test for EditabilityService (#4806)
* Fix part of #4057: Add test for AnswerGroupsCacheService (#4843)
Docstrings
* Fix part of #4374: Add docstrings to core.domain.feedback_jobs_continuous (#4855)
* Fix part of #4374: Add docstrings to core.storage files. (#4841)
* Fix part of #4374: Add docstrings to value_generators_domain.py (#4826)
* Fix part of #4374: Add docstrings to user_query_services.py and user_services.py (#4796)
* Fix part of #4374: Add docstrings to core/domain/stats_jobs_one_off.py (#4757)
* Fix part of #4374: Add docstrings to core.domain.stats_domain. (#4731)
* Fix part of #4374: Add docstring to core.platform.email.gae_email_services (#4795)
* Fix part of #4374: Add docstrings to test_utils.py (#4845)
v2.6.2 (20 Mar 2018)
--------------------
Learner View:
* Fix #4639: Changed the ending for refresher explorations (#4644)
* Fix #4627: hides tooltip after new card available. (#4637)
* Interactions:
* Fix #4641: Added new fractions rule to check if fractional part exactly equals (#4648)
* Fix #4640: Added customization args to write custom placeholders for fractions interaction (#4645)
* Fix #4409: Interactions not working on mobile. (#4672)
* Block console error message in pencil code editor (#4741)
* Fixes issue #4562 : Overlapping line numbers and text in Code Editor (#4745)
* Fix part of #4367: Added null submit checks for set input interaction (#4710)
* Fix #4430: fixed weird graph edge weight input (#4707)
* Fix:#4634: Deleting imageInteraction should delete the responses. (#4711)
* Fix #4549: Fixed the position of code editor (#4674)
* Fix #4530: Fixed extra new lines and whitespaces in Multiple choice Options (#4739)
* Fix #2827: GraphInput not visible in mobile view. (#4698)
Exploration Editor:
* Fix #4566: Dollar formatting issue (#4633)
* Fix #4676: Updated exploration search validator. (#4687)
* Fix #4481: Adds a link to the exploration in the publication modal (#4647)
* Fix #4701: fixes rule descriptor for ListOfCodeEvaluation and SetOfNormalizedStrings (#4703)
* Fix #4656: Fix spacing around links in rte (#4694)
* Fixed issue #4692: Fixed styling for input text field. (#4715)
* Fix #4635 Make the Advanced feature settings(in creator mode) more intuitive (#4695)
* Fix #3906: Add link which takes you to State Editor from Statistics Tab Modals (#4655)
* Fix #3478: Added functionality to sort nodes list. (#4708)
* Fixes #4530: Removes spaces and new lines from end of string in RTE. (#4748)
* Fix #4072 : Uses Initial few words as a feedback's subject (#4257)
* Fix #4712:Unaligned radio-button with corresponding text. (#4718)
Audio:
* Fix #4621: Add modal for flagging audio translations on feedback, hints, and solutions. (#4623)
* Fix #4295: Added slider for audio bar (#4659)
* Fix #4528:Sets default language to the last selected language for audio translations in creator view. (#4673)
* Only attach onended property of audio if current track is not null. (#4685)
* Allow audio translations to be stripped away when creating new explorations using the upload YAML button (#4378)
* Fix #4293: Add slide animation to audio bar directive (#4636)
* Fix #4497 Fix console errors for audio on card with no text (#4726)
* Fix #4680: Pauses the audio being played when preview button is clicked (#4725)
* Fix #4292: Upgraded font-awesome and play/pause icons (#4750)
Miscellaneous fixes:
* Fixes #4410: Fixed info modal for private explorations (#4754)
* Fix #4590: Fixes dropdown overlap with feedback editor (#4629)
* Fixes #4660 - Fixed dropdown menu (#4671)
* Fix #4587: Item Selection input boxes are top-aligned (#4607)
* Fix #4683: Altered positioning of help card to make it appropriate (#4696)
* Fix #3606: For public explorations, default to the feedback page in the exploration editor if feedback exists. (#4716)
* Fix #1494: Can't see videos in Tabs. (#4736)
* Fix part of #3550: Move translation check from footer to header (#4738)
* Fix #2915: fixes sidebar breaking on mobile (#4749)
* Fix:#4721:The text in the tooltip is not completely visible in case of the leftmost collection. (#4733)
* Added a new Fractions landing page (#4758)
* Fixes bug #4746 (#4747)
Statistics:
* Fix #3797: Deprecate old classification framework (#4653)
* Deprecate the old stats framework and StatsAggregator job. (#4762)
* TextInput classifer bug fixes (#4700)
* Consolidated Change list mapping method (#4729)
* Add try and except blocks at probable error generating lines. (#4755)
Infrastructure and Refactoring:
* Fixed part of #4057: ThreadStatusDisplayService (#4606)
* Fix Travis build fail (#4679)
* Fix #4295: addresses review comments in #4659 (#4670)
* Updated PULL_REQUEST_TEMPLATE to include #bugnum in explanation. (#4681)
* Add comment to explain null value in AudioPlayerService. (#4735)
* Linting checks added:
* Fix part of #3905: Added eqeqeq rule (#4573)
* Add check for keyword spacing (#4697)
* Add check for consistent comma spacing (#4720)
* Enable isort diff to debug import-order errors (#4684)
* Add check for consistent brace style (#4727)
* Space check for Python files (#4728)
* Add check for trailing whitespaces (#4699)
* Fix part of #3905: Add lint checks for common coding issues arising in code reviews (#4724)
Docstrings:
* Fix part of #4374: Add docstring to file core.storage.job.gae_models.py (#4705)
* Fixed part of issue #4374 :Added docstring for cron.py (#4722)
* Fixed Part of #3954: Added CollectionEditorPage (#4678)
* Fix part of #4374: Documented core.platform.models (#4596)
v2.6.1 (18 Feb 2018)
--------------------
Exploration Player:
* Hints and Solutions:
* Fix state schema migration for hints (#4638)
* Prevent hints from being released after correct answer is submitted. (#4580)
* Change fraction placeholder when no integer part is allowed. (#4581)
* Fix #4512: Changes in hint's tooltip waiting and closing time. (#4513)
* Fix #4465: Clear the tooltip timeout on-reset, or once a hint or solution is viewed. (#4471)
* Fix #4412: Improved presentation of solutions (#4434)
* UI:
* Fix help card cut off bug. (#4630)
* Ensure 'Return to Library' button always shows for explorations (#4561)
* hides the back button if a help window with a continue button is shown (#4552)
* Fix #4472: Auto scroll in ItemSelection input interaction (#4523)
* Fix #4509: Line spacing in bulleted lists seems to be different from line spacing in standard text (#4535)
* Fix cut-off ratings at end of exploration. (#4540)
* Fix #4433: made radio buttons align to top of div (#4446)
* Fix #4461: Learn Again button appearing when not intended (#4479)
* Fix #4427: Show previous answer for map interaction (#4478)
* Fix #1251: Set cursor color to black in MathExpressionInput. (#4424)
* Fix #1251: Set cursor color to black for MathExpressionInput. (#4408)
* Correctness Footer:
* Fix Correct footer showing even when no response is input (#4550)
* Fix #4468: Animate 'Correct Answer' feedback (#4526)
* Disable correctness feedback for linear interactions (#4456)
* Fix #4460: Correctness Footer should hide when learner moves backward from the last card (#4464)
* Updated the correctness banner (#4463)
* Refresher Explorations:
* Fix error due to refresher exps possibly being outside a collection. (#4624)
* Fixed url error when redirecting to refresher exploration (#4611)
* Update text of refresher exp modal. (#4584)
* Audio:
* Add check for initialization of speechSynthesis. (#4601)
* Chance cancel property in SpeechSynthesisChunkerService into its own variable. (#4591)
* Add check to prevent 'SpeechSynthesisUtterance is undefined' error. (#4571)
* Fix #4488: Make audio bar expand button bigger on mobile, and hide on scroll down. (#4541)
* Fix #4486: Changed width of audio selection dropdown to not cut out text on phones (#4527)
* Optimize audiobar behavior on mobile (#4515)
* Include mobile speech synthesis code. (#4462)
* Replace _isPlaying in AutogeneratedAudioPlayerService with speaking property of speech synthesis; Fix bug with duplicate utterances being generated by autogenerated audio; Fix bug where submitting a feedback before a previous feedback response has finished speaking results in the highlighting of the card content. (#4436)
* Fraction Input:
* Fix #4567: Changed condition to check range enclosed criteria, edited existing test (#4575)
* Add placeholder in fractions input (#4514)
* Change rule description for HasNoFractionalPart (#4505)
* Fix #4474: Updated solution getSummary to support fractions (#4475)
* Minor style fix in fractionInputValidationService.js (#4469)
* Fix #4444, #4452: Added appropriate filter for Fractions. (#4454)
* Fix #4443: Changed some check conditions for answer groups in fractions. (#4449)
* Added validity checks for the newly added customization args for Fractions Interaction (#4400)
Exploration Editor:
* Fix #4617: Fixed the weird behaviour of red dot in editor mode (#4619)
* Add a dot to mark previous answer in ImageRegion when no highlighting (#4614)
* Fix of #2533: Modified the stripFormatting filter to preserve newlines in RTE cut-and-paste (#4568)
* Fix #1542: RTE Components correctly displayed in answer group header (#4565)
* Fix #4555: Address review comments for #4536. (#4556)
* Fix #4503: Fixed RTE element view in hint editor (#4536)
* Fix #4542: Moves the position of NodeErrorMessage tooltip. (#4544)
* Fix part of #3826: Change and rename graphDataService in pages/exploration_editor/EditorServices.js (#4490)
* Fix #4480: Hide Page selector from history tab if only one page (#4495)
* Fix #4470: Fixed The ticks/crosses in the editor are misaligned (#4473)
* Fix part of #3826: Extract and rename 'changeListService' from EditorServices.js (#4379)
Collections:
* Fix missing collection ID in exploration redirection ID. (#4626)
* Adds proper message for validation error in skill ID. (#4577)
* Fix #4494: Return to collection when finished by guests when explorations have recommendations (#4554)
* Update collection_player.html to properly pass along collection ID to (#4524)
* Exploration search validator (for new node) modification. (#4510)
Statistics:
* Add visualization stats for fractions input interaction. (#4598)
* Fix #4349: Record leave for refresher exp events (#4557)
UI:
* Fix #4533: Fix word wrap property (#4608)
* Fix #4459: Removes attribution guide in mobile view (#4508)
* Set error page footer to relative position (#4498)
Tests:
* Fix #4612: organised promises (#4631)
* Fix #4559: Write an e2e test to prevent users from getting stuck in non inline interactions (#4622)
* Fix part of #4057: Unit test for SidebarStatusService (#4520)
* Fix part of #4057 - Test frontend services in domain/classifier (#4305)
* Ignore youtube embedding error while e2e test on Travis. (#4603)
* Shrink Protractor timeout. (#4597)
* Fix #4275: Embedding e2e test creation (#4482)
* Add test to HintAndSolutionManagerService to check that hints aren't released after a correct answer is submitted. (#4585)
* fixed flaky protractor test (#4445)
* fix for #4432 (#4435)
Speed:
* Extensions refactor (#4620)
* Fix part of #3950: replace Jinja in state_editor_responses.html (#4548)
Misc:
* "Update version number to 2.6.1"
* Fix #3753: Remove IS_MINIFIED variable (#4613)
* Fix #3826 -Extracted services to ExplorationPropertyService.js (#4589)
* Fix issue with URL loading (and 404-ing) before it is interpolated. (#4610)
* Routine update of translations. (#4595)
* Update content-type for JSON responses. (#4583)
* Change Java prerequisite to v8 (#4570)
* Update changelog, AUTHORS, CONTRIBUTORS and credits. (#4560)
* Fix part of #3826: Extracted recursionHelper-> NestedDirectivesRecursionTimeoutPreventionService into separate file. (#4518)
* Fix part of #3826: Extracted schemaUndefinedLastElementService into a separate file. (#4476)
* Extracted SchemaDefaultValueService (#4457)
* Fix part of #3826 and #4413: Included the service in the definition of the function and extracted AutosaveInfoModalsService into individual file (#4414)
* Fix part of #3826: Extracts rteHelperService into separate file. (#4392)
Docstrings:
* Add docstrings. (#4616)
* Fix part of #4374: Update docstrings to core.domain.email_manager (#4593)
* Fix part of #4374: Add docstrings to core.domain.collection_domain. (#4569)
* Fix part of #4374: Add docstrings to core.domain.param_domain (#4551)
* Fixes #2394 : Added docstring to functions in utils.py (#4330)
* Fix part of #4374: Add docstrings to core.domain.config_domain (#4506)
* Fix part of #4374: Add docstrings to core.domain.classifier_domain (#4458)
* Fix part of #4374: Added Doc string for core.domain.email_subscription_services (#4451)
* Fix part of #4374: Added docstring for core.controller.pages
* Fix #4374 partially: Adding missing docstrings. (#4419)
* Fix part of #4374: Add docstrings to core.controllers.collection_editor (#4402)
* Fix part of #4374: Added docstrings to core.controllers.base (#4404)
Linter:
* Enable indent for func-expr (#4588)
* Fix part of #3905: Added semi-rule (#4576)
* Fix part of #3905: Add checks for correct docstring style. (#4572)
* Fix part of #3905: Add check for console.log statement (#4564)
* Added check for Python files in _check_import_order function (#4547)
* Fix part of #3905: Add space checks for definitions (#4522)
* Fix import-order check (#4499)
Splash page:
* fixed #4415 - Fix display bug in splash page (#4416)
v2.6.0 (18 Jan 2018)
--------------------
Exploration player:
* Hints and solutions
* Fix #4285: New design for Hints and Solution (#4286, #4203, #4338, #4358, #4383, #4393, #4471, #4513)
* Fix #4298: Introduce tooltip functionality for hints (#4375, #4396)
* Fix #4412: Improve presentation of solutions (#4434)
* Audio
* Audio redesign (#4271, #4332, #4515, #4527)
* Add audio playback for feedback, hints, and solutions to learner view (#4346)
* Highlight components while audio is playing (#4382)
* Fix #4290: temporary fix for audio bar when audio is not available (#4337)
* Fix #4302, #4340: Removes audio option from unsupported browsers.
* Auto-download audio at the outset of an exploration (#4149)
* Replace _isPlaying in AutogeneratedAudioPlayerService with speaking property of speech synthesis (#4436)
* Fix bug with duplicate utterances being generated by autogenerated audio (#4436)
* Fix bug where submitting a feedback before a previous feedback response has finished speaking results in the highlighting of the card content (#4436)
* Include mobile speech synthesis code (#4462)
* Fix #4488: Make audio bar expand button bigger on mobile, and hide on scroll down. (#4541)
* Correctness feedback
* Fix part of #4356: Added Correctness Footer in exploration view. (#4363, #4389, #4385, #4463, #4464, #4526, #4550)
* Fix #4354: Add learn again button (#4391, #4479)
* Progress navigation
* Remove progress dots and replace with arrows for lesson playback (#4265, #4288, #4365)
* Fix #4350, #4217, #4361: Enable progress-nav on desktop (and some other interaction fixes) (#4365)
* Fix #4342: Added null submit checks for various interactions (#4359)
* Fix part of #3712: Created Continue Button Directive (#4273)
* Fix #4317: Hide the back button if a help window with a continue button is shown (#4552)
* FractionInput interaction
* Fix #4180: Bug with the fractions interaction checking integer parts. (#4181)
* Fix #4443: Update the validation criteria for FractionInput rules. (#4449, #4469)
* Fix #4501: Change rule description for HasNoFractionalPart rule (#4505)
* Fix #4511: Add placeholder text in fractions input (#4514)
* Other
* Fix #4355: Added refresher exploration redirection in player view (#4344, #4373, #4435, #4445, #4524)
* Fix #1270: Earlier non-inline interactions are still interactive (#4232, #4281, #4427)
* Do a migration for the correctness property and fractions customization args. (#4390, #4400)
* Fix #4459: Remove attribution guide in mobile view (#4508)
* Fix #4091: Set max-height for ItemSelectionInputResponse images (#4229)
* Fix #4433: correct alignment of radio buttons in MultipleChoiceInput interaction (#4446)
* Fix #4455: Fix cut-off ratings at end of exploration. (#4540)
* Fix #4509: Line spacing in bulleted lists seems to be different from line spacing in standard text (#4535)
* Fix #4494: Return to collection when finished by guests when explorations have recommendations (#4554)
* Fix #4472: Fix auto scroll in ItemSelection input interaction (#4523)
Exploration editor:
* Hints and solutions
* Fix #4047: Abbreviated Solution Explanation (#4269)
* Fix #3773: hints ui-sortable not functioning as expected (#4316)
* Fix #4287: solution updates are not handled correctly. (#4289)
* Fix #4152: fix bug in solution verification service. (#4154)
* Fix #4503: Fixed RTE element summaries in hint editor (#4536)
* Audio
* Add audio translations to feedback, hint, and solution in editor (#4312, #4233)
* Added styling for audio-controls (#4310)
* Fix #4311: major bug in editor due to using subtitled HTML for default outcome. (#4313)
* Correctness feedback
* Introduce a correctness_feedback_enabled field at the exploration level and make corresponding updates to the states dict. (#4235, #4270, #4456, #4473)
* Other
* Allow editing of refresher exploration ID. (#4320, #4336)
* Always show something in the lost changes modal, even if the data cannot be parsed. (#4394)
* Fix dropdown issue in multiple choice interaction (#4315)
* Fix #310: Add Pagination to exploration history tab (#4212, #4495)
* Fix of #4253: Stopped weird flickering in the editor content card (#4284)
* Fix #4065: New editor logout handler (#4211)
* Fix #4444, #4452, #4474: Add an appropriate filter for FractionInput rules. (#4454, #4475)
* Fixes 3741: Remove action parameter when moderator unpublishes exploration. (#4213)
Collection player
* Fix #4249: Add local storage support for collections played by guests. (#4250)
* Fix #3787 and #3788: Clicking outside the preview card in the collection learner view should close the preview card; when the preview card shows in the small-width collection learner view, the background should be darkened. (#4185)
* Fix #4141: Removed console error and added tests for error with three nodes in collection player view (#4197)
Collection editor
* Modify the validator for the new node field when searching for explorations (#4510)
Learner dashboard
* Fix #4178: "add to playlist" tooltip appears after coming back only. (#4319)
* Fix #3978: Added correct message for no incomplete explorations. (#4264)
Library
* Fix #4279: Deselecting languages in the search area of the library page does not work correctly. (#4283)
* Prevent 3-letter language codes from being used as the language code for an exploration, otherwise this breaks App Engine's search service. (#4277)
UI (general):
* Upgrade ui bootstrap (#4230, #4248, #4262, #4324, #4372)
* Fix #4174: nav and footer for user journey (#4242)
* Fix #4291: Moderator badge is placed correct. (#4306)
* Fix #4224: Set Admin Badge in place. (#4236)