This file contains a summary of changes to the Oppia code base.

v2.8.4 (26 Jul 2019)

------------------------

Bug fixes

* Fix #7143: Removes imageFonts from MathJax (#7200)

* Fix #7188: Resolve issues with learner dashboard and profile page (#7191)

* Fix #7161: Removes expression evaluation braces from i18n translation-values (#7183)

* Fix #7125: Fixed sidebar toggle in the splash page (#7162)

* Fix #7126: Removes html validation and associated tests (#7144)

* Fix #7127: Fix invalid html conversion process to avoid extra lines (#7128)

* Fix #7120: Use app_dev.yaml for e2e test and performance test (#7123)

* Add log for error during blob construction (#7108)

* Add log for undefined interaction specs (#7107)

* Fix backend tests on develop (#6977)

* Fix #6777: Pressing R prompts microphone only in translation tab. (#6898)

* Retrain classifier models if they are not available for previous version of exploration states (#6868)

* Fix #1105: Fires 'redrawGraph' event on navigating to the editor (#7098)

* Fix #7042: Change d3.event.translate to d3.event.transform (#7082)

* Fix backend tests on develop (#7078)

* Fixes #7047: Hides submit button if interactionId is null (#7070)

* Fixes #5795: Adds null check and changes z-index value for "Restart From Beginning" button (#7060)

* Feedback text overflow (#7054)

Statistics

* Adding a LearnerAnswerDetailsModel (#6815)

Improvements to editors and players

* Fix part of #5799: Feedback card object factory (#7076)

* Frontend changes such that creator can enable/disable solicit answer details feature for a state (#6926)

* Fix #6792: Adding Exploration Titles to Collection Landing Page (#6881)

New structures

* Fix #6348: Add functionality to start a practice session in the topic viewer (#7075)

* Fix #7016: Separate review test to pass/fail mode and add score bar for each skill (#7050)

* Remove frontend for question suggestions (#7029)

* Fix #6779 and part of #6347: First draft of the results page (#6993)

* Display review tests when viewing stories (#6987)

* Record completion after completing a story node in the story viewer (#6973)

* Fix part of #6346: Add a state service to record the users progress in the question player (for score calculation) (#6971)

* Link multiple skills to one question and unify question list service (#6927)

* [Milestone 1.1] Implement review test using question player (#6850)

* Replace content_ids_to_audio_translations dict with RecordedVoiceovers object in topics and skills. (#6814)

Infrastructural changes

* Fix #6952: Adds a backend test to ensure that all storage models have audit jobs (#7101)

* Introduction to Angular 8 (#7048)

* Introduction to Angular 8. (#7027)

* Fix #6887: Audit jobs and tests for user models and a new panel for prod jobs on admin tab (#7023)

* Separate remaining constants into individual files. (#6996)

* Audit jobs and tests for classifier, jobs, feedback and suggestion models (#6995)

* Audit jobs and tests for question models (#6992)

* Audit jobs and tests for skill models (#6991)

* Audit jobs and tests for topic models (#6990)

* Domain object changes for topic, skill, question models (#6989)

* Separate constants in domain/ into individual files. (#6968)

* Migrate remaining pages to component directives. (#6953)

* Milestone 1.1, 1.2, 1.3: Add audit jobs and tests (#6857)

* Fix part of #5914: UserStatsModel Takeout (#6825)

* Fix part of #5914: UserSettingsModel and UserSubscriptionsModel Takeout (#6981)

* Fixes part of #6271: Refactor question domain update to accept objects (#7024)

Translations

* Routine update of translations (#7069)

Updates to static pages

* Serve other dynamic pages using transclusion components (#7104)

* Serve static pages from app.yaml (#6974)

* Milestone 1.3, 1.4 Serve remaining static pages statically (#6934)

Code health

* Fix #5069: Remove $parent from codebase. (#7110)

* Fixes #6950: Fix ck editor fileoverview (#7106)

* Fix #7037: Add check for npm packages (#7051)

* Upgrades node_modules @types definition of d3, google.visualization & selenium-webdriver (#6969)

* Upgrades Angular static libraries (#6966)

* Upgrades Requests (#6965)

* Fixes part of #5002: Remove CSRF token from GLOBALS (#6951)

* Upgrades hammer.js and waveSurferJs (#6941)

* Upgrades code-mirror, browsermob-proxy and mouse-trap (#6940)

* Upgrades isort webtest and pylint quotes (#6938)

* Upgrades GAE Libraries (#6922)

* Upgrades Angular-audio, Mutagen and MidiJs (#6912)

* Migrating to Font-Awesome 5 (#6789)

* Upgrades jasmine, karma-webpack, webdriver-manager, covergae, pygithub & webpack to their latest version (#6770)

Development workflow

* Fixes: Build error in develop (#7137)

* Add clean to webpack config (#7112)

* Make pre push hook executable (#7111)

* Make pre-commit hook file executable (#7105)

* Fixes #7079: Update lexical analysis to path analysis (#7096)

* Fix #7033: introduce a wait into the e2e test, and change how refreshing is done in the editor tab. (#7094)

* Introduce Code-Climate to maintain coverage (#7067)

* Fixes #6736: Add pre-commit hook check for package-lock.json (#7059)

* Fix browermobproxy version in pre-commit script (#7055)

* Fix #6888: Run tests split by classes (#7040)

* Fix part of #6732: Migrate interactions and classifiers to webpack (#6939)

* Update CODEOWNERS file. (#7103)

* Analytics Team Owner Handoff (#7077)

* Add Sean as backup for vojtechjelinek (#7063)

Testing coverage

* Fix part of #6550: Write tests for cron.py (#7095)

* Fix part of #6550: Write tests for controllers/reader.py (#7081)

* Fix part of #6550: Write tests for admin.py (#7057)

* Fix part of #6550: Write tests for core/jobs (#7006)

* Fix part of #6550: Write tests for test_utils (#7003)

* Fix part of #6550: Write tests for state_domain (#6999)

* Fix part of #6550: Write tests for story_domain and story_services (#6983)

* Fix part of #6550: Write tests for user_services (#6980)

* Fix part of #6550: Write tests for feedback_services (#6978)

* Fix part of #6550: Write tests for topic_services and gae_suite (#6976)

* Fix part of #6550: Write tests for suggestion_services (#6970)

* Fix part of #6550: Write tests for summary_services and topic_jobs_one_off (#6963)

* Fix part of #6550: Write tests for domain/exp_jobs_one_off (#6946)

* Fix part of #6550: Write tests for domain/suggestion_registry (#6937)

* Fix part of #6550: Write tests for rights_manager, subtopic_page_domain and subtopic_page_services (#6936)

* Fix part of #6550: Write tests for stats_domain and stats_services (#6925)

* Fix part of #6550: Write tests for skill_domain and skill_services (#6896)

* Fix part of #6550: Write tests for domain/html_validation_service.py (#6861)

* Fix part of #6550: Write tests for controllers/topic_editor (#6761)

* Fix part of #6550: Write tests for controllers/skill_editor and controllers/story_editor (#6750)

* Fix part of #6550: Write tests for controllers/feedback.py (#6740)

* Raise backend test coverage of review_test.py to 100% (#7014)

v2.8.3 (3 Jun 2019)

------------------------

Bug fixes

* Fix #7007: Allows adding proper tags for the exploration by replacing parent with ctrl (#7058)

* Fix #6864: Fix console error in learner dashboard and empty suggestion modal (#7056)

* Fix #7031: Add missing $ctrl (#7032)

* Fix issues in collection pages (#6958)

* Added log for #6158 (#6955)

* Minor nit fixes (#6954)

* Fix #6943: Fix code editor interaction issue in exploration player. (#6948)

* Fix #6895: Fix feedback status selector not showing issue. (#6947)

* Fix #6933: Fix modal and status issue in translation tab. (#6944)

* Fix #6917: Adds dependency to topic editor (#6918)

* Add log for null summaries (for #6157) (#6910)

* Fix #6903: added required share link directive to exploration save service to force wrapping (#6908)

* Fix #6897: fix issues with tile backgrounds and images (#6872)

* Fix #6851: Revert "Remove {{BEFORE_END_HEAD_TAG_HOOK}} from Base.html (#6835)" (#6852)

* Fix topic viewer 404 error (#6838)

* Fix #6832: Fix issues with ctrl and $scope (#6836)

* Add logging for #6702, #6604 (#6833)

* Fix #6737: Remove state id mapping from the codebase (#6830)

* Fix 500 error when downloading old exploration versions. (#6826)

* Fix #6806: Regressions in the Oppia navbars (#6820)

* Fix #6298: Adds a condition to check length of input response pairs (#6809)

* Added log for issue #6478 (#6808)

* Extended hover on about menu when any li child is hovered (#6801)

* Fix #6785: Fix image upload issue (#6787)

* Fix #6500: Removes console message if the querySegment length is longer (#6768)

* Fix Array.fill() not a function stackdriver error using polyfill for IE (#6756)

* Fix explorationHistoryTab e2e test issue in the develop branch (#6739)

* Fix #6686: Added a validation check for the patterns/file mentioned in the suites of e2e tests. (#6716)

* Fix #6582: Set Title to inherit the width of the parent (#6715)

* Fix #6523: Invalidate Stats Cache for States when Interaction Type Changes (#6679)

* Update pre_push_hook to run frontend test if .ts or .js file changes (#6677)

* Fixes #6331: Do not allow user to add roles if title is not given. (#6625)

Code health

* Upgrades Requests (#6965)

* Remove Before End Hook from base.html (#6880)

* One off job to delete state ID mapping models from the datastore. (#6871)

* Fix part of #5002: Remove isTopicManager and userIsLoggedIn (#6845)

* Remove {{BEFORE_END_HEAD_TAG_HOOK}} from Base.html (#6835)

* Upgrades uiSortable and jQuery (#6803)

* Upgrades bleach and simplejson (#6797)

* Fix Part of #6565: Make Exploration pages and Collection pages use pageTitleService (#6786)

* Webpack introduction (#6324)

Development workflow

* Fix #6914: Remove unused setup code that is causing breakages on some systems. (#6942)

* Fix #6678: Add test for ensuring usage of angular.mock.inject (#6924)

* Fix #6799: Add restricted globals rule to eslint (#6923)

* Fix part of #6732: Extensions objects webpack integration (#6889)

* Fix #6884: Update license link in README. (#6886)

* Fix part of #6732: Migrate visualizations to webpack (#6885)

* Fix part of #6732: Migrate RTCs to webpack (#6882)

* Reduce the time for a PR to be classified as stale (#6837)

* Add bullet point about adding assignees (#6807)

* Remove all browserstack-related statements from .travis.yml (#6800)

* Resolve npm errors (and fix some pre-push hook issues as well). (#6769)

* Speed webpack compilation (#6751)

* Routine update of translations. (#6747)

* Use pip_install command instead of vanilla pip install for PyGithub. (#6746)

* Add webpack to codeowners (#6745)

* Fixes creation of tmp folders while running lint (#6722)

* Upgrade types/node dependency to 10.14.6. (#6721)

* Revert package-lock.json in PR #6585 (#6711)

* Changing License to Apache-2.0 (#6697)

* Adds a check to track extra js files and removes local compiled js before each compilation (#6694)

* Update pre push to halt if upstream is not set (#6675)

* Fix release_info.py to stop picking cherrypicks from past releases in the changelog (#6669)

* Full coverage for CODEOWNERS in the codebase. (#6616)

* Fix #6449: Added check for CODEOWNERS to ensure that the most important rules are at the end. (#6560)

* Fix #6364: Added file overview check. (#6451)

Translations

* Translation tab text and speed improvements. (#6709)

* Fix #5627 : Stop recording should stop microphone and angular-recorder should be replaced. (#6708)

New structures

* Fix part of #6346: Pass skill descriptions to the question player (#6967)

* Create a preliminary story viewer page (#6945)

* Add linked_skill_ids to the Question model (#6929)

* Add backward linkage of story to the topic it belongs. (#6855)

* Fix a bug in the Question Player Directive (#6848)

* Score Ring component for the results page in practice sessions (#6813)

* Removed the ENABLE_NEW_STRUCTURE_EDITORS flag (#6780)

* Fix part of #6346: Integrate Exploration player in Question player body (#6692)

* Fix part of #6346: Initial check in for the Question Player Directive (#6620)

Updates to static pages

* Milestone 1.2 Serve more pages statically (#6874)

* Fix #6794: Add landing page for negative numbers and refactor landing page. (#6846)

* Serve get_started page statically (#6818)

* Fix part of #6565: Make story_editor, topic_editor and topic_viewer use pageTitleService (#6742)

Infrastructural changes

* Move SuggestionModalService to services/ (#6935)

* Clean up work on constants. (#6919)

* Rename PretestEngineService to QuestionPlayerEngineService (#6913)

* Migrate standalone controllers in pages to component directives. (#6907)

* Separate constants into separate file per page (#6906)

* Apply folders by feature to Learner Dashboard. (#6905)

* Fix part of #6732: Migrate value_generators to webpack (#6900)

* Apply folders by feature to Exploration Editor. (#6899)

* Apply folders by feature to Exploration Player and Admin page (#6892)

* Apply folders by feature to collection editor and topic editor. (#6890)

* Apply folders by feature to moderate sized pages. (#6879)

* Modify update_configs.py script to include constants.js as well. (#6877)

* Apply folders by feature to lightweight pages. (#6876)

* Apply folders by feature to components/forms/validators/ and split tests. (#6870)

* Apply folders by features to remaining part of components/ folder. (#6869)

* Apply folders by features to part of components/ folder (#6863)

* Introduce Folders by Feature to filters/ folder. (#6860)

* Eliminate controller files for suggestion modals (#6859)

* Eliminate editor_tab.html to merge into exploration_editor_tab.html (#6858)

* Convert Learner Local Nav and Leaner Local Info in ExplorationPlayer to component directives. (#6856)

* Convert standalone controllers in Exploration Editor page to component directives (#6843)

* Convert standalone controllers in LibraryFooter and ExplorationGraph to component directives (#6840)

* Adding solicit_answer_details in the State class (#6810)

* Add skip_files in third_party_size_check.py (#6796)

* Fix a bug where the email header was incorrect. (#6795)

* Generalized image storage (#6783)

* Upgrades MathJax & MathJs (#6778)

* Add comment for npm dedupe command. (#6775)

* Add CollectionEditorStateService import in CollectionEditor.ts (#6753)

* Convert directives in extensions to component directives (#6752)

* Migrate controllers/directives in the pages directory to component directives (#6749)

* Convert directives in components folder to component directives (#6728)

* Add a oneoff job to clean up invalid UserSubscriptionsModel (#6720)

* Remove exploration from subscribers when it's deleted (#6719)

* Add validation for state id mappings. (#6680)

* Fix #6043: Change state's content_ids_to_audio_translations to recorded_voiceovers (#6587)

* Fix #6548: Convert the current per-exploration translator role to a voice-artist role. (#6566)

Testing coverage

* Fix backend tests on develop (#6878)

* Fix backend tests on develop (#6875)

* Fix part of #6550: Write tests for domain/topic_domain (#6873)

* Fix part of #6550: Write tests for domain/question_services (#6854)

* Fix part of #6550: Write tests for controllers/editor (#6849)

* Fix part of #6550: Write tests for domain/user_jobs_one_off (#6842)

* Fix part of #6550: Write tests for domain/collection_services (#6839)

* Fix part of #6550: Write tests for domain/classifier_domain and domain/event_services (#6831)

* Fix part of #4057: Add unit tests for lookupEnvs method of ExpressionSyntaxTreeService.ts (#6828)

* Fix part of #6550: Write tests for controllers/suggestion (#6822)

* Fix part of #6550: Write tests for collection_domain (#6819)

* Fix part of #6550: Make coverage 100% for controllers/library (#6812)

* Fix part of #6550: Write tests for storage base_model, statistics and pages.py (#6811)

* Fix part of #6550: Write tests for classifier, collection, email, feedback and user storage gae_models (#6802)

* Fix part of #6550: Write tests for gae_image_services and replaced PIL with Pillow (#6788)

* Fix part of #6550: Write tests for controllers/acl_decorators (#6782)

* Fix part of #6550: Write tests for controllers/collection_editor (#6764)

* Fix part of #6550: Improve test coverage of core/controller/libary.py" to 92% (#6760)

* Fix part of #6550: Write tests for controllers/email_dashboard (#6744)

* Fix part of #6550: Write tests for collection_viewer and translator (#6741)

* Fix part of #6550: Improve coverage for learner dashboard (#6729)

* Fix #6572: Adds e2e test for written translation project (#6718)

* Fix part of #6550: Write tests for core/controllers/profile.py (#6713)

* Fix part of #6550: Improved coverage for controllers/base.py (#6712)

* Fix part of #6550: Write backend tests for skill_jobs_one_off, story_jobs_one_off, user_query_jobs_one_off , value_generators_domain, and visualization_registry (#6710)

* Fix part of #6550: Write backend tests for core/domain/param_domain.py and core/domain/search_services.py (#6664)

* Fix part of #6550: Increased coverage for learner progress services (#6643)

* Fix part of #6550: Write backend tests for core.controllers.moderator and core.controllers.question_editor_test (#6585)

* Fix part of #5134: Improve coverage for creator_dashboard and gae_search_services (#6480)

* Fix part of #6550: Adds 100% backend tests coverage for resources.py, topics_and_skills_dashboard.py, activity_jobs_one_off.py and classifier_services.py (#6602)

Improvements to editors and players

* Fix #6262: Constrain the width of the tooltip so that it fits the screen (instead of overflowing) (#6865)

v2.8.2 (23 May 2019)

------------------------

Improvements to editors and players

* Fix #6468: Fix the improper alignment of tick mark in the library page (#6552)

* Fix #6200: Fix inconsistent spacing with the lists (#6554)

* Fix #6542: Add card name to the title of the exploration feedback (#6580)

* Fix #6623: Add title to sharing link icons (#6624)

New structures

* Modify topic viewer page and few UI changes on topic editor page (#6455)

Bug fixes

* Fix #6418: Add validation checks to avoid infinite loops explained in issue and comments (#6520)

* Fix #3819: Fix strange dragging behaviour of play later list in learner dashboard (#6544)

* Fix #6229: Reordering Hints and Worked Examples in Safari (#6547)

* Fix #6561: Corrected the "About-->Get Involved" link on the top navigation bar (#6567)

* Fix part of #6159: Fix revert exploration method (#6575)

* Fix broken interaction previews in the exploration editor (#6627)

* Fix lint issue by adding a space after colon (#6631)

* Fix #6667: Renamed e2e test file to fix the issue. (#6668)

Updates to static pages

* Add NOTICE file, per Section 4(d) of the Apache license. (#6568)

* Fix #6562: Removed G+ from the footer and Readme.md (#6569)

* Fix #6581: Remove alternative versions of splash page (#6594)

* Add a checkpoint to check for codeowners to the PR checklist (#6603)

* Add a note regarding changelog labels to PR checklist (#6608)

Translations

* Add proper validation for written translations to allow translation in hinglish (#6588)

Infrastructural changes

* Migrate codebase to typescript (#6530)

* Add a new one off job for validating production models. (#6541)

* Fix part of #5914: Adds unimplemented extract_data method in the BaseModel (#6573)

Code health

* Fix part of #6387: Remove globals ALLOWED_INTERACTIONS_CATEGORIES (#6472)

* Rename states_schema_version to state_schema_version. (#6589)

* Fix part of #6565: Made error page and library page to use PageTitleService (#6595)

* Update pylint to version 1.9.4 (#6626)

* Update pycodestyle to version 2.5.0 (#6637)

* Use package.json to install node modules; upgrade node module versions. (#6659)

Development workflow

* Adds codeowner to core.domain files (#6545)

* Removing the timeout multiplier, to get in sync with linting files (#6559)

* Fix part of #6555: Fix existing lint issues in develop branch (#6563)

* Add removal of app.yaml version field to deploy script (#6564)

* Fix release info script: fix imports, and sort PRs in descending order (#6607)

* Moves lint test from CircleCI to Travis CI. (#6647)

* Introduce `linter_utils` module (#6650)

* Add a comment to explain setting of node path (#6681)

Testing coverage

* Fix part of #5134: Increase coverage from 82% to 100% for core.platform.email.gae_email_services.py (#6335)

* Fix part of #6240: Add e2e test for adding user bio in preferences page (#6512)

* Fix Part of #6240: Add e2e tests for editing exploration properties in coreEditorAndPlayerFeatures.js (#6557)

* Fix part of #6550: Raise code coverage of core.storage.question.gae_models to 100% (#6558)

* Fix part of #6550: Increase backend test coverage to 100% in multiple files. (#6648)

v2.8.1 (26 April 2019)

------------------------

Improvements to editors and players

* Fix #6285: Fixes issues while selecting an answer in the editor feedback tab. (#6532)

* Fixed minor issue in story editor (#6529)

* UI related to the written translation project. (#6503)

* Add send mail functionality for reviewing topics (#6501)

* Fix #2125: Fix alignment of Exploration Graph legend in history tab. (#6402)

* Fix #5802, #5590: Introduce Playthrough Improvements Cards (#6400)

* Fix #6370: Fix Title and Goal label alignment (#6372)

* Fix #5530: Update collection title after save and refresh (#6362)

* Fix #6322: Add IsProperSubsetOf to item-selection interaction (#6350)

New structures

* Support question difficulty per skill (#6502)

* Fix #6377: Create Practice Sessions Page Skeleton (#6381)

* Question Player Backend API Service (#6373)

Translations

* Fix #5921: Adds e2e test for uploading audio in translation tab (#6340)

* Fix #6248 : Prevent guest and unauthorized users from drag-and-drop audio in translation tab. (#6304)

* Fix part of #5898: Aria model with test case (#6290)

* Add written translation property in skillContents and subtopic. (#6241)

* Fix part of #5898: Added Google Analytics for translation tab (#6166)

* Add proper validation for written translations to allow translation in hinglish. (#6588)

Infrastructural changes

* Fix release info script: fix imports, and sort PRs in descending order (#6607)

* Add removal of app.yaml version field to deploy script. (#6564)

* Fix the backend issues with some new structure models (#6514)

* Change the name of the schema_version field in story models. (#6420)

* Make new model IDs only contain alphanumeric characters. (#6408)

* Update release script to use SSH Git URL instead of HTTPS (#6382)

* Fix #6294: Upgrade BeautifulSoup version from 4.6.0 to 4.7.1 (#6355)

* Fix part of #6343: Update js files to remove typescript compile errors (#6344)

Bug fixes

* Fix broken interaction previews in the exploration editor (#6627)

* Fix part of #6159: Fix revert exploration method (#6575)

* Fix few translation tab related issues. (#6571)

* Fix #6538: Adds a proper title for landing pages. (#6539)

* Fix #6181:Removed the exception which occured during clearing search index (#6518)

* Fix issues with New Structures (#6506)

* Fix #6383: Added regex to validate return_url in signup page (#6498)

* Fix #6426: Added regex check for exploration id & nodes now can be saved with null exploration ids. (#6470)

* Fix #6461: Changing error status for missing csrf_token from 500 to 401. (#6463)

* Fix #6452: Fix server errors (#6454)

* Fix #4931: Fixes frozen editor tour (#6450)

* Fix #4632: Fixes learn again-continue button (#6448)

* Fix #6206: Fix enlargement of text in RTE (#6447)

* Fix #6436: Adds removeDuplicatesInArray filter in exploration_player. (#6437)

* Fix #6414: REQUIRE_PAYLOAD_CSRF_CHECK Flag Flipped in Error404Handler class. (#6435)

* Remove unwanted validation check and related tests from exploration. (#6407)

* Fix #6205 : Disabled the reject button, enabled only when some review is entered. (#6384)

* Fix #6325 : modify style of active and inactive submenus on learner dashboard (#6358)

* Fix #6199: Hint tabs failed to open when active hint deleted (#6243)

* Fix #2306: Fixes signup issue when a new tab is opened (#6235)

Code health

* Fix #6494: Added check for style properties to have a space between the colon and the property value. (#6516)

* Fix part of #6387: Email constant fix (#6467)

* Fix part of issue #6316: Remove some scripts from base.html which were not needed in it. (#6466)

* Fix part of #6343: Adds custom type definitions (#6430)

* Fix part of #6387: Remove globals from library.html and preferences.html (#6415)

* Fix part of #5002: Removed iframed from GLOBALS (#6410)

* Fix part of #5002: Remove logoutUrl from HTML (#6401)

* Fix #6316: Refactor base.html (#6399)

* Fix part of #5002: Moved SITE_FEEDBACK_FORM_URL from GLOBALS to constants.js. (#6365)

* Fix part of #6254: Refactor for directives.js and filters.js (#6275)

Development workflow

* Fix #6534: make MR jobs runnable on localhost. (#6543)

* Update pip and Skulpt installations for newer versions of Ubuntu (#6464)

* Move lint tests to CircleCI from Travis (#6453)

* Reorder CODEOWNERS to ensure that the most important rules are at the end. (#6438)

* Add webhook links for Travis, CircleCI & Codecov (#6398)

* Automate changelog generation in the release_info script (#6395)

* Fix #6321: Added checks to validate patterns in CODEOWNERS file. (#6386)

* Add option not to start browser window to start.sh (#6363)

* Add issue template for server errors (#6308)

* Add a script for updating indexes. Move gcloud functions into a separate module. (#6305)

* Port back-end tests from Travis to CircleCI (#6234)

* Fix #5426: Lint check to ensure that each Angular file contains exactly one service/directive/etc. inside it. (#6202)

* Fix #6100 : Added verbose and non verbose mode in the pre submit check (#6146)

Testing coverage

* Fix part of #5134: Make test coverage of core.storage.exploration.gae_models 100% (#6540)

* Fix part of #5134, more robust testing to schema_utils.py (#6432)

* Fix part of #4057: Increase test coverage to 100% for HintObjectFactory.js and InteractionObjectFactory.js. (#6428)

* Fix part of #5134: Make test coverage of core.controllers.collection_viewer 100% (#6427)

* Add pending New Structures e2e tests (#6385)

* Fix part of #5134 : Increasing the test coverage of subtopic_page_services.py from 64% to 100%. (#6360)

* Fix part of #5134: Increased Coverage from 89% to 100% for core.domain.email_manager.py (#6306)

* Add unit test for translation_tab/TranslationStatusService.js (#6261)

v2.8.0 (30 March 2019)

------------------------

New structures

* Fixed the backend issues with some new structure models (#6514)

* Fixed issues with New Structures (#6506)

* Support question difficulty per skill (#6502)

* Added subtopic_viewer (SubtopicPageDataHandler), which returns page contents for a subtopic. (#6327)

* Fixed issues from intuitiveness testing on New Structures (#6314)

* Added story viewer backend handler (#6237)

* Updated the topic backend handler (#6185)

Improvements to editors and players

* Replace google-map with openStreetMap in map interaction. (#6309)

* Fix #2584: Replace default text while inserting links with placeholder (#6286)

Translations

* Adds written translations domain object in frontend for state and question. (#6320)

* Fixes #5784: unhandled promise in the ng-audio library. (#6280)

* Adds written translation property in skillContents and subtopic. (#6241)

* Added active content id service to fix translation tab issues. (#6211)

* Fix #4278: Re-introduce 3-letter language codes for explorations and collections. (#6182)

* Adds functionality to internally manage to add and delete content ids into assets dict. (#6171)

* Translation Script: Adds TranslationScript and ContentTranslation object in state domain. (#6121)

* Fix #5572: added translation help explaining translation features (#5796)

Bug fixes

* Fix #6426: Added regex check for exploration id & nodes now can be saved with null exploration ids. (#6470)

* Fix #6436: Adds removeDuplicatesInArray filter in exploration_player. (#6437)

* Fix #6205: Disabled the reject button, enabled only when some review is entered. (#6384)

* Fix #6301: fixes Dev-mode label showing up for a brief amount of time on page load. (#6356)

* Fix #6174: Address 'Promise is undefined' server error. (#6281)

* Fix #6214: Audio bar hides for auto-generated audio (#6265)

* Fix #6244: Fixing the cancel button in hint editor (#6250)

* Fix #2306: Fixes signup issue when a new tab is opened (#6235)

* Fix #5508: Feedback threads in feedback tab reorder now in real time. (#6183)

* Fix #5487: Fix load issue with multiple same images (#6170)

* Fix #6140: Learner answer overflow (#6154)

* Fix #6111: Aligned checkmarks on learner's dashboard (#6147)

* Fix part of #4231: Make the add response modal scroll visible at all times, via css (#6116)

* Refactor for suggestion modal display (#6093)

Code health

* Moved state related components in a separate dir. (#6334)

* Fixes #6316: Refactor base.html (#6319)

* Fixes #6226: Moves generating CKEditor widgets from app.js to separate file. (#6288)

* Delete old one-off jobs. (#6283)

* Fix part of #6254: Refactor for directives.js and filters.js (#6275)

* Removing scripts and include statements for popovers (#6270)

* Fix #6194: Remove extraneous file. (#6196)

Development workflow

* Update pip and Skulpt installations for newer versions of Ubuntu (#6464)

* Fix frontend tests failing occasionally. (#6371)

* Adds QA team as a codeowner for test files. (#6352)

* Adds codeowners related to frontend pages. (#6332)

* Run lint tests on Travis until fixed on CircleCI (#6328)

* Add issue template for server errors (#6308)

* Add a script for updating indexes. Move gcloud functions into a separate module. (#6305)

* Update deployment script to check for indexes in advance. (#6300)

* Fix #6282: Run front-end tests in pre-push hook, only if changes are made in JS files. (#6289)

* Add some additional pre-release checks. (#6284)

* Fix CODEOWNER wrong dir issue. (#6277)

* Adds code-owners for teams/projects. (#6266)

* Fixes #6233 : Improved the error message for match line breaks controller (#6246)

* Port back-end tests from Travis to CircleCI (#6234)

* Fix part of #5476: Add checks to detect spaces in docstring (#6231)

* Fix #5465: Added check for prohibited imports (#6180)

* Fix part of #5939: Custom pylint extension for checking single character files and newline characters. (#6172)

* Fix #6103: Add summary of errors for lint checks on Travis (#6165)

* Fix #6004: Added a presubmit check to ensure imports of JS files are sorted (#6125)

Infrastructural changes

* Change the name of the schema_version field in story models. (#6420)

* Make new model IDs only contain alphanumeric characters. (#6408)

* Generalized landing page based on subject and topic. (#6357)

* Remove google forum link. (#6333)

* Correct comment string in UserSubscriptionsModel (#6310)

* Adds codeowners for other projects. (#6287)

* Fix part of #6254: Refactor to implement rule of 1 (#6267)

* Fix #6251: Add basic typescript configuration (#6256)

* Fix #6210: Added an exploration whitelist (#6255)

* One off job to validate exploration migration can be carried out successfully. (#6249)

* Fix #6213: Add application_readable to directive htmls handler (#6216)

* Remove Open Sans and Rubik fonts (#6208)

* Update app.yaml to improve caching (#6184)

* Translation Script: Exploration migration including services for handling translation script. (#6175)

* Fix part of #5002: Remove promo bar from globals (#6169)

Testing coverage

* Added pending New Structures e2e tests (#6385)

* New Structures e2e tests (#6315)

* Fix part of #5134: learner_playlist_services - fix grammar and whitespace (#6291)

* Fix part of #5134: 100% coverage for core.platform.models (#6263)

* Fix part of #4057 Make PlayerPositionService.js 100% test coverage (#6258)

* Fix part of #5134: Increased coverage to 100% for question_editor (#6217)

* Added topics and skills dashboard e2e tests (#6204)

* Fix part of #5134: Increased coverage to 100% for mailgun_email_services.py (#6133)

* Fix #5134: Improve coverage to 89% by implementing anonymous feedback (#6086)

* Fix part of #5134: Added test for exp one off jobs (#5972)

* Fix part of #5134: Added test for core.storage.file.gae_models (#5960)

v2.7.3 (16 February 2019)

------------------------

Infrastructural changes

* Improvements to PlaythroughAudit (#6239)

* Add None/deleted checks to DeleteIllegalPlaythroughsOneOffJob (#6195)

* Fix Content-Disposition headers being unicode instead of str (#6192)

* Fix check for clean working tree in common.py (#6191)

* Fix #4666: Fixes correctness test for Text Input Prediction Service (#6120)

* Fix #5975: Create One-off Job to Remove Invalid Playthroughs (#6131)

* Fix #5371: One Off Job to populate message_count in GeneralFeedbackThreadModel (#5999)

* Fix #6104: Use sub-process in pre_push_hook (#6114)

* Fix part of #5591: Migrate Playthrough Feature Data into ExplorationFeaturesService (#6044)

* Fix part of #5002: Move ALLOW_YAML_FILE_UPLOAD from feconf to constants (#5989)

* Fix part of #5002: Remove GLOBALS from HTML (#6050)

* Add audio translation schema for subtopic pages (#5823)

* Remove automatic backups script. (#5956)

* Fix classifier models when exploration is reverted and add test case for auto migrations (#5888)

Improvements to the editors and players

* Fix #6188: Fix word-break in explorations (#6187)

* Changed word-break to word-wrap (#6189)

* Fix #5745: Redesign audio bar of the translation tab. (#6167)

* Fix #5822: Add customization option to allow multiple sort items in the same position in Drag and drop interaction (#6177)

* UI changes to topic and skill editor (#6091)

* Fix #5019: The continue button is now visible with long feedback (#6136)

* Fix #6122: Add $log service to prevent the error arising on rejecting suggestions (#6124)

* Fix #4407: KaTeX text no longer goes outside text container in MathExpressionInput (#6130)

* Fix #4833: Prevents text overflow in answer statistics page (#6137)

* Fix #6078: Updating publish button after modal is dismissed (#6096)

* Fix #5729: Adds a numerical progress status in the translation tab (#6097)

* Fix #6055: Prevents content overflow in save draft modal (#6079)

* Fix #5771: Ensure that the active tab of translation tab is maintained every time save draft/publish changes is clicked (#6076)

* Fix #3074: Added height limit warning for card content (#5997)

* Fix bugs in new structure editors (#6084)

* Fix #6064: Changes backdrop controls to static for exploration publish modal (#6071)

Improvements to testing suites

* Reorder e2e test suites into more logical categorization (#6036)

* Fix part of #5134: Adding tests for core.domain.collection_jobs_one_off (#6061)

* Fix part of #4057: Adding tests to increase coverage of OutcomeObjectFactory.js (#6098)

* Fix part of #5134: Making the coverage of email_jobs_one_off to 100% (#6026)

* Fix #5839: Filter slow network logs for mobile tests on Browserstack (#6090)

* Fix #5923: Refactoring and clean up backend tests (#6074)

* Fix part of #5134: Added test for fs_domain.py (#5988)

* Fix #4829: Reduce code redundancy in backend testing (#5838)

* Fixes error in backend tests redirection when trying to test a specific module within a test file (#6054)

Documentation and development workflow

* Fixes part of #4374: Update docstrings in the python backend code (#6028)

* Enable missing docstrings check (#6073)

Miscellaneous bug fixes and updates

* Fix #6128: Successfully load mobile view in '/parents' page (#6259)

* Fix #6118: Improved spacing between reload buttons on admin page (#6123)

* Fix #6089: Moved common css to oppia.css and removed extra comments for sync (#6107)

* Fix #6117: The Role tab tooltip on the admin page is now placed correctly (#6119)

* Fix #5678: Add swipeable carousel to Library page in mobile view (#6087)

* Fix #5751: Remove G+ from the sharing icons. (#6058)

* Fix #6056: Makes the resize of text box vertical (#6057)

* Routine update to translations. (#6164)

v2.7.2 (14 January 2019)

------------------------

Updates to landing pages

* Small landing page changes based on feedback from Kefeh (#5951)

* Fix #5978: Stewards page content alignment (#6042)

Analytics for creators

* Hide playthrough issues on exploration editor stats tab if exploration isn't whitelisted (#5947)

* Fixes #5860: Fix fraction display in statistics tab (#5976)

* Rename playthrough-related issues services/directives/factories (#5990)

* Fix #5798: Introduce Improvements tab to exploration editor (#5991)

* Introduce FetchPlaythroughWhitelistHandler (#5966)

Generalized review system

* Fix #4995: Remove complex logic from the storage layer, and add domain/service layer for emails (#5940)

* Fix error while displaying suggestion threads on learner dashboard page (#5965)

Development workflow

* Fix #5761: --test_target flag redirects to the corresponding test file if needed (#6014)

* Fix #5885: Only run front end tests when front end files are changed (#5936)

* Fix #5782: Added custom check to remove backslash continuation (#5964)

* Fix #5529: Print python lint errors at the end of the check (#6005)

* Add try/except block in pre-commit linter (#6019)

* Enforce variables to be in snake case (#5943)

* Fix #5876: Check that cls arguments come first in function args (#5919)

* Fix part of #6024: Consolidate file access in the pre-commit linter (#6023)

* Fix #5938: Lint checks should run only for files changed by the user (#6033)

* Introduce eslint: space-before-blocks rule (#6048)

* Fix max-len error (#5994)

* Fix false positive Travis build in pre-commit linter (#6002)

* Fix #6040: Fix issues in develop which led to lint test failures (#6038)

New structures

* Implement editing of questions (#5614)

* Allow admins to assign topic managers to topics (#5971)

* Split ENABLE_NEW_STRUCTURES flag to 2 flags for editors and players (#5987)

Test coverage

* Fix part of #5134: Add more tests to increase coverage of core.controllers.classifier (#5926)

* Fix part of #5134: Add tests for core.controllers.custom_landing_pages. (#5925)

* Fix part of #5134: Add core.platform.models tests (#5944)

Code health and documentation

* Upgrade pylint to 1.9.3 and fix some docstring issues (#5935)

* Fix code duplication in ExplorationPlayerStateService (#6000)

* Fix #4968: Move customization args method from state_domain to customization_args_util (#6015)

* Fix parts of #4374: Add docstrings to Python files. (#5928, #5969, #5977, #6006, #6013, #6027, #6035, #6041)

Improvements to editor features

* Fix #5933: Changed code editor prompt in test exploration to be more explicit (#5941)

* Fix #5853: Remove weird image artifact in rich-text editor (#5954)

* Fix #5039: Add continue button in preview mode (#5962)

* Fix #5949: Make RTE spacing uniform (#5953)

* Fix #5701: Alert user to save changes before publishing (#5948)

* Fix #5980: Make line-spacing consistent within a paragraph (#5981)

* Add questions list tab and create question functionality to skill editor (#5920)

* Fix #5973: Fix the changed space when the text is added just below the image (#5996)

* Fix #5982: Fix modal overflow issue by using word-break property (#5983)

* Fix #3972: Fix the faulty vertical offset (#6030)

* Fix #6016: Limited the selection area of multiple choice option (#6029)

* Fix #6056: Prevent the text box in the Save Draft modal from flowing out of the modal boundaries (#6057)

* Fix #6064: Change backdrop controls to static for exploratoin publication modal (#6071)

Updates to the library and splash pages

* Fix #4936: The drop down menus work similar to the keyboard behavior for the About and Profile dropdowns (#5974)

* Fix #3972: Fix the faulty vertical offset (#6030)

* Fix #5755: Add padding to cards to fix alignment issue on mobile view (#5968)

Infrastructure changes

* Fix part of #3950: Remove Jinja ifs from exploration_player.html (#5958)

* Fix part of #3950: Remove Jinja ifs from collection player (#5869)

* Add more debugging info to help identify cause of undefined states (#5827)

* Fix part of #5002: Remove NAV_MODE from side navigation bar (#6008)

v2.7.1 (20 December 2018)

-------------------------

Updates to landing pages:

* Updates to the text on the stewards page. (#5912)

* Add landing page for parents and teachers. (#5905)

Development workflow:

* Fix #5466: Added check to enforce that all name of controllers end with "Handler" or "Page" (#5878)

* Fix part of #5476: Enforce docstring arg order (#5844)

* Fix #5843: Changes _check_comment to check for spaces and capitals (#5852)

* Fix #5809: Add check to match line breaks in controller dependencies (#5833)

* Fix docstrings tests, Swapped if blocks for _check_docstrings (#5752)

* Remove mobile tests env var for PR builds and add a job for it (#5835)

* Update bug_report.md (#5866)

* Fix #5896: Set threads' daemon property to False (#5897)

New Structures:

* Add paging for questions in topic editor and story editor modifications (#5892)

* UI modifications to story editor. (#5724)

* Add functionality to Publish stories (#5709)

* Revert some changes in #5810. (#5841)

Improving test coverage:

* Fix #5861: Updated Test for Email Truncation (#5915)

* Fix part of #5134: Added missing tests for question domain. (#5887)

* Fix part of #5134: Added backend tests for `core.domain.learner_progress_domain` (#5859)

* Fix part of #5134: Backend test for core.controllers.tasks (#5840)

* Fix #5787: Add a unit test to check blob type for uploaded audio. (#5858)

Code health and documentation:

* Added comment to Image Uploader fix (#5895)

* Fix part of #4374: Add docstrings to python files (#5871)

* Some follow-up fixes to style issues in #5730. (#5842)

* Added missing docstrings in scripts/common.py and scripts/docstrings_checker.py (#5870)

* Added missing docstrings in scripts/build.py (#5808)

* Fix part of #4374: Add docstrings to the python files. (#5849)

* Added docstring for clamp method and simplified usage. (#5834)

Improvements to editor features

* Fix #3691: Implements email functionality for failed ML training job (#5902)

* Fix #5606: Logic Proof Truncation and Display (#5864)

* Change 'compliment' feedback to use a green background colour. (#5865)

* Fix #5746: Added saving log and disabled buttons while saving (#5764)

* Fix #5777: Add statename in translation tab (#5830)

* Fix #5821: Adjust placement of accessibility tooltips in the exploration editor. (#5824)

Updates to the library and splash pages

* Fix #5907: Increase width of search input box such that whole text is visible (#5910)

* Swap the order of the browse/create buttons on the splash page. (#5828)

Infrastructure changes

* Consolidate image and audio handlers to use one AssetDevHandler that handles all assets (#5857)

* Fix part of #3950: Remove Jinja ifs from collection player (#5869)

* Add more debugging info to help identify cause of undefined states (#5827)

v2.7.0 (29 November 2018)

-------------------------

Bug fixes:

* Fix video on fractions landing (#5906)

* Fix profile picture modal not showing picture when we add it again after discard it (#5891)

* Fix #5862: fixes preferred audio language doesn't display options in preferences page. (#5882)

* Added automaticTextToSpeech check for audio bar. (#5880)

* Added a "_directive" suffix to "view_suggestion_edit_exploration_state_content_modal.html" file. (#5848)

* Fix #5814: Double edit button in exploration player navbar (#5815)

* Remove code duplication for calculating answer choices (#5779)

New structures:

* Remove skills from a topic (#5804)

* URL decode topic name using urllib.unquote_plus (#5810)

* Add field canonical_name for Topic and TopicSummary (#5775)

* Add audio translation schema for concept card (#5677)

* Fix #5052: Create one-off schema migration jobs for topics, skills, questions and stories (#5660)

* Fix #5671: Create success message toasts for topics and skills (#5705)

* Fix #5712: Display an appropriate message when creating questions in topic editor with no skills (#5736)

Infrastructure:

* Fix #5310: Added a size check to third party folder to prevent breaching the 10k files limit on AppEngine (#5743)

* Fix #4973: Add minify_only option to build.py (#5758)

* Fix #5713: Change asset handler url to make it clearer that it's used in dev mode (#5721)

Developer workflow and code health:

* Fix part of #4374: Add docstrings to the Python files. (#5734)

* Fix part of #5002: Move user related variables form GLOBALS (#5659)

* Fix part of #5529: print CSS and JS lint check error messages at the end of the check (#5748)

* Fix part of #4374: Add acl decorator docstrings (#5803)

* Fix #5243: Set ignore_whitespace to true in .isort.cfg (#5789)

* Fix part of #4057: Remove TriggerObjectFactory code (#5770)

* Fix part of #5134: Added AnswerSubmittedEventHandlerTest (#5778)

* Fix part of #4374: Added missing docstrings to scripts (#5723)

* Fix part of #5134: Improve test coverage of core.controllers.topics_and_skills_dashboard (#5741)

* Fix part of #5134: Improve test coverage of core.controllers.concept_card_viewer (#5762)

* Fix part of #5134: Improve test coverage of core.controllers.topic_viewer (#5742)

* Fix typo in constants.py (#5754)

* Fix part of #4374: Add docstrings for docstring_checker (#5744)

* Fix part of #4374: Add docstrings for main.py (#5704)

Investigation work:

* Add more debugging info to help identify cause of undefined states (#5827)

Miscellaneous:

* Fixes #5687: Allow resubmission of rejected suggestions. (#5730)

* Fix #5553: Enable audio translations for Safari (#5780)

* Fix broken SkillMigrationOneOffJobTest (#5781)

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 #5749: 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)