moodle/lib/upgrade.txt

This files describes API changes in core lbraries and APIs,
information provided here is intended especially for developers.

=== 2.5 ===

* Function get_max_file_sizes now returns an option for (for example) "Course limit (500MB)" or
  "Site limit (200MB)" when appropriate with the option set to 0. This function no longer returns
  an option for 0 bytes. Existing code that was replacing the 0 option in the return
  from this function with a more sensible message, can now use the return from this function directly.
* Functions responsible for output in course/lib.php are deprecated, the code is moved to
  appropriate renderers: print_section_add_menus()
  See functions' phpdocs in lib/deprecatedlib.php
* Function get_print_section_cm_text() is deprecated, replaced with methods in cm_info
* zip_packer may create empty zip archives, there is a new option to ignore
  problematic files when creating archive
* The function delete_course_module was deprecated and has been replaced with
  course_delete_module. The reason for this was because the function delete_course_module
  only partially deletes data, so wherever it was called extra code was needed to
  perform the whole deletion process. The function course_delete_module now takes care
  of the whole process.
* curl::setopt() does not accept constant values any more. As it never worked properly,
  we decided to make the type check stricter. Now, the keys of the array pass must be a string
  corresponding to the curl constant name.


YUI changes:
* M.util.help_icon has been deprecated. Code should be updated to use moodle-core-popuphelp
  instead. To do so, remove any existing JS calls to M.util.help_icon from your PHP and ensure
  that your help link is placed in a span which has the class 'helplink'.

=== 2.4 ===

* Pagelib: Numerous deprecated functions were removed as classes page_base, page_course
  and page_generic_activity.
* use $CFG->googlemapkey3 instead of removed $CFG->googlemapkey and migrate to Google Maps API V3
* Function settings_navigation::add_course_editing_links() is completely removed
* function global_navigation::format_display_course_content() is removed completely (the
  functionality is moved to course format class)
* in the function global_navigation::load_generic_course_sections() the argument $courseformat is
  removed
* New component and itemid columns in groups_members table - this allows plugin to create protected
  group memberships using 'xx_yy_allow_group_member_remove' callback and there is also a new restore
  callback 'xx_yy_restore_group_member()'.
* New general role assignment restore plugin callback 'xx_yy_restore_role_assignment()'.
* functions get_generic_section_name(), get_all_sections(), add_mod_to_section(), get_all_mods()
  are deprecated. See their phpdocs in lib/deprecatedlib.php on how to replace them

YUI changes:
* moodle-enrol-notification has been renamed to moodle-core-notification
* YUI2 code must now use 2in3, see http://yuilibrary.com/yui/docs/yui/yui-yui2.html
* M.util.init_select_autosubmit() and M.util.init_url_select() have been deprecated. Code using this should be updated
  to use moodle-core-formautosubmit

Unit testing changes:
* output debugging() is not sent to standard output any more,
  use $this->assertDebuggingCalled(), $this->assertDebuggingNotCalled(),
  $this->getDebuggingMessages() or $this->assertResetDebugging() instead.

=== 2.3 ===

Database layer changes:
* objects are not allowed in paramters of DML functions, use explicit casting to strings if necessary

Note:
* DDL and DML methods which were deprecated in 2.0 have now been removed, they will no longer produce
debug messages and will produce fatal errors

API changes:

* send_stored_file() has changed its interface
* deleted several resourcelib_embed_* functions from resourcelib.php

=== 2.2 ===

removed unused libraries:
* odbc, base32, CodeSniffer, overlib, apd profiling, kses, Smarty, PEAR Console, swfobject, cssshover.htc, md5.js

API changes:
* new admin/tool plugin type
* new context API - old API is still available
* deleted users do not have context any more
* removed global search


=== 2.1 ===

API changes:
* basic suport for restore from 1.9
* new mobile devices API
* new questions API


=== 2.0 ===

API changes:
* new DML API - http://docs.moodle.org/dev/DML_functions
* new DDL API - http://docs.moodle.org/dev/DDL_functions
* new file API - http://docs.moodle.org/dev/File_API
* new $PAGE and $OUTPUT API
* new navigation API
* new theme API - http://docs.moodle.org/dev/Theme_changes_in_2.0
* new javascript API - http://docs.moodle.org/dev/JavaScript_usage_guide
* new portfolio API
* new local plugin type
* new translation support - http://lang.moodle.org
* new web service API
* new cohorts API
* new messaging API
* new rating API
* new comment API
* new sessions API
* new enrolment API
* new backup/restore API
* new blocks API
* new filters API
* improved plugin support (aka Frankenstyle)
* new registration and hub API
* new course completion API
* new plagiarism API
* changed blog API
* new text editor API
* new my moodle and profiles API