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- For 2.11.5 (modified)
  Include changes in 1.1072

- Add a11ychecker plugin and balloonpanel dependency for ckeditor 4.22.1

- For 2.11.5 (modified)
  Include changes in 1.1071

- Help file link to right of "Current Access Status" column header in listing
  of Portfolio directory points at different file depending on context, and
  user's privileges.
- Add documentation about sharing files in Group portolio to Course
  Coordination manual.

- For 2.11.5 (modified)
  Include changes in 1.1070

- Document Archiving Options.

- For 2.11.5 (modified)
  Include changes in 1.1055

- For 2.11.5 (modified)
  Include changes in  1.1028, 1.1045

- For 2.11.4 (modified)
  Include changes in 1.1028, 1.1045

- For 2.11.5 (modified)
  Include changes in 1.921, 1.924, 1.925, 1.926, 1.927, 1.945, 1.952, 1.958 (part),
  1.960 (part), 1.961, 1.962, 1.963, 1.964, 1.978, 1.991 (part), 1.1001, 1.1004,
  1.1015, 1.1024, 1.1025, 1.1026, 1.1027 (part), 1.1029, 1.1030, 1.1031, 1.1032,
  1.1033, 1.1036, 1.1042, 1.1043, 1.1046, 1.1047, 1.1050, 1.1051, 1.1052, 1.1053,
  1.1054, 1.1059, 1.1060

- For 2.11.4 (modified)
  Alphabetize

- For 2.11.4 (modified)
  Include changes in 1.1046

- For 2.11.4 (modified)
  Include changes in 1.1060

- For 2.11
  Backport 1.1069

- Add checksums file for 2.11.5

- For 2.11
  Backport 1.1034

- For 2.11
  Backport 1.1056

- For 2.11
  Backport 1.1068.

- Add caparesponse.h (eliminates "Incompatible-pointer-types" error in
  capa_wrap.c when building capa.so on Fedora 40).

- For 2.11
 - Backport 1.1037, 1.1038, 1.1039, 1.1040, 1.1041, 1.1044, 1.1057, 1.1058,
            1.1059, 1.1061, 1.1062, 1.1063, 1.1064, 1.1065, 1.1066, 1.1067

- Support Debian 10 (buster) and Debian 11 (bullseye) on amd64.

- Support Debian 12 (bookworm) on amd64.

- Include licensing information for Geogebra HTML5 version.

- Geogebra for HTML5 for functionplotresponse
  Update to version 5.2.843 (requires functionplotresponse.pm rev. 1.111)

- Update JSME to 2024-04-29 version.

- Update jquery to 3.7.1 and jquery-ui to 1.13.3.

- Update ckeditor to 4.22.1

- Bug 6990. Author can export specified files (with/without recursion into
  subdirectories from current directory in Authoring Space to archive file.

- Support Fedora 39 and Fedora 40.

- Support perl 5.38

- Support Ubuntu 24.04 LTS

- Access to Authoring Space Configuration from Functions menu instead of
  Settings in inline menu when Authoring Space accessed in course context.

- Add icon and help file for View/Modify Course Settings for DC to override
  domain default for Course/Community defaults in a specific course.

- For 2.11.4 (modified)
  Include change in 1.1054

- Typo

- For 2.11.4 (modified)
  Include changes in 1.1053

- Documentation for Daxe Editor.

- For 2.11.4 (modified)
  Include change in 1.1052

- Add dependency omitted from rev. 1.924

- For 2.11.4 (modified)
  Fix typo in 1.797.2.131.2.16

- For 2.11.4 (modified)
  Include changes in 1.1051

- Documentation for new domain configuration: "Authoring Space defaults".

- For 2.11.4 (modified)
  Include changes in 1.945, 1.1047

- For 2.11.4 (modified)
  Include changes in 1.924, 1.925, 1.926

- For 2.11.4 (modified)
  Include changes in 1.921

- For 2.11.4 (modified)
  Include changes in 1.1049, 1.1050

- Add documentation for External tools configuration in Course Settings

- Update description of Table of Contents to include information about
  icon used to jump to PDF generation.

- Availability of "Course Authoring Space" set in Course Community defaults
  in domain (by container type), can be overridden for specific course(s).
- Add some help files for Course Editor and View/modify a course/community
- Add icons for use of Course Authoring Space.

- Available editors in Authoring Space: value set for specific author can
  override domain default.
- Daxe editor page includes "collapsed" standard inline LON-CAPA menus
  (primary, secondary, and Functions). Icons at top left to toggle
  expansion or collapse.

- Bug 5273
- Add icons for User Management Mens in Authoring Space.

- Authoring Space defaults defaults which domain coordinator can override.
  - Available Editors, WebDAV access, Disk Quota for Authoring Space
    can be set for specific users by DC via "Add/modify user"
- Bug 5273 Co-authors in "group authoring" accounts can manage co-authors
  - Existing co-author(s) can be assigned rights to add/revoke co-author
    roles. Can be set by DC via "Add/modify user" or by author via "People"
- Co-authors and Assistant co-authors can view a list of co-authors for
  the Authoring Space. Availability set by Author or Co-author "manager".
  Listing can be set to "opt-in".

- For 2.11.4 (modified)
  Include changes in 1.1036

- For 2.11.4 (modified)
  Include changes in 1.1042 and 1.1043

- Support perl 5.36

- Missing semi-colon

- "View or modify a course or community" item for Domain Coordinators.
  - "Actions" footer included on all pages after selecting a view/modification
    action for a specific course/community from "View/Modify Course Settings'
  - Course type included in header line above icons/links for actions.
  - Course title moved to <h4> header line on actions pages.
  - Explanation of actions moved to help file accessed via question mark on
    right side of breadcrumbs.
  - Satisfy w3c validation

- MathJax 2.7.9

- For 2.11.4 (modified)
  Include changes in 1.960 (part), 1.961, 1.962, 1.964, 1.991

- Update JSME to 2022-09-26 version.

- Support Fedora 36, Fedora 37 and Fedora 38.

- Support Ubuntu 22.04.2 LTS (Jammy Jellyfish)

- Support RHEL9, Oracle Linux 9, Rocky Linux 9 and AlmaLinux 9

- Bug 6979
  - Shortcut to student's view of problem etc. from 'View As' item in Functions
  menu above problem.
  - Part of code in &submission() subroutine in grades.pm moved to separate
  subroutine -- &show_last_submission() which can be called by &view_as_user(),
  which in turn is called from lonhomework.pm

- For 2.11.4 (modified)
  Include changes in 1.1029, 1.1033, 1.1034

- Use ajax to dynamically update drop-down lists of directories and files
  available in course author space.

- Provide more information to privileged users if map could not be loaded
  during course initialization because file was missing.

- Bug 6971 Individual user preference for Time Zone.

- For 2.11.4 (modified)
  Include changes in rev. 1.1032

- Bug 6972.
  Option in course to display every External Resource Item as link (and
  launch in a tab or window) instead of in iframe.

- For 2.11.4 (modified)
  Include changes in 1.1030, 1.1031

- Bug 6907
  "Exit Tool" button available to logout a session launched via deep link
  and escape iframe and redirect (for LTI-protected link).

- Bug 6907
  For LTI-protected deep links in which username is included in launch payload
  compare username in payload with username for any existing LON-CAPA session
  in current web browser and expire old session, if different user.

- Include printout icon in "Tools" above listing of course contents unless
  course is empty. Options include:
  - Print items not in a folder (if any exist)
  - Print items in a selected folder
  Privileged users can also print selected folder for selected users or CODEs.
- When displaying list of resources to select exclude any /adm/navmaps items
  themselves.

- Bug 6069

- For 2.11.4 (modified)
  Two 2.12 features included:
  (a) "Done" button for a student to end a timed quiz/exam early
  (b) "Deny from" as well as "allow from" for (i) acc parameter used to
      limit access to resource by IP and (ii) slots with IP access control.

- For 2.11
  Backport 1.1027 (part)

- For 2.11.4 (modified)
  Include changes in 1.1027

- Missing help files for modification of course defaults by Domain Coordinator
  for specific course(s) via: "View or modify a course or community".

- For 2.11.4 (modified)
  Include changes in 1.1015

- For 2.11.4 (modified)
  Include changes in 1.958 (part), 1.991 (part)

- For 2.11.4 (modified)
  Include changes in 1.1026

- Missing extension in item added in rev. 1.1025

- For 2.11.4 (modified)
  Include changes in 1.1024

- For 2.11.4 (modified)
  Include changes in 1.927, 1.952, 1.960 (part), 1.963, 1.978, 1.1001,
  1.1004, 1.1024, 1.1025

- Bug 6907. Documentation for 'Menu display' and 'Link protection' items
  in Course Settings, used to specify menu collection(s) and LTI config.
  for session launch via deep-link (e.g. 'External Tool' in other system).

- Documentation for Short URLs for deep-linking to a resource or folder.

- For 2.11
  Backport 1.944, 1.1023

- Reverse part of changes in rev. 1.944

- For 2.11
  Backport 1.1022

- Support CentOS Stream 8 and 9.

- For 2.11
  Backport 1.1021

- Support Rocky Linux 8 and AlmaLinux 8

- For 2.11
  Backport 1.1007

- For 2.11
  Backport 1.1020

- Support perl 5.34

- For 2.11
  Backport 1.1019

- Support Fedora 35

- For 2.11
  Backport 1.1018

- Add checksums file for 2.11.4

- For 2.11
  Backport 1.1017

- Add documentation of options when publishing directory

- For 2.11
  Backport 1.1013, 1.1014, 1.1016

- Bug 6955. Document configuration of IP-based access control in a domain.

- Documentation for LTI Provider configuration (work in progress).

- Support Fedora 34

- Update JSME to 2020-12-26 version.

- For 2.11.3 (modified)
  Include changes in 1.954, 1.955

- For 2.11.3 (modified)
  Include changes in 1.954, 1.955

- For 2.11
  Backport 1.954, 1.955

- For 2.11.3 (modified)
  Two 2.12 features included:
  (a) "Done" button for a student to end a timed quiz/exam early
  (b) "Deny from" as well as "allow from" for (i) acc parameter used to
      limit access to resource by IP and (ii) slots with IP access control.

- For 2.11.3 (modified)
  Include changes in 1.1012.

- For 2.11
  Backport 1.1012

- Add some images used in Change_Password.tex and Wishlist.tex help files.

- For 2.11.3 (modified)
  Include changes in 1.1008, 1.1009, 1.1010, 1.1011.

- For 2.11
  Bacjport 1.1011

- Correct file name

- For 2.11
  Backport 1.1008, 1.1009, 1.1010.

- Document use of slots to support reservation by students (in advance) to
  content at a particular time and/or place.
- Expand information about formatting in slot attributes CSV file.

- Add missing file extension.

- Add images used in updated documentation for Grading screen.

- Bug 6914 Document domain configuration for use of WAF/ReverseRead

- For 2.11.3 (modified)
  Include changes in 1.797.2.118, 1.1005, 1.1006

- For 2.11
  Typo in 1.797.2.111 backport of 1.997

- For 2.11
  Backport 1.1005, 1.1006

- Support Fedora 33

- Support perl 5.32

- For 2.11.3 (modified)
  Include part of changes in 1.960

- For 2.11.3 (modified)
  Include change in rev. 1.1001

- For 2.11.3 (modified)
  Include changes in 1.705

- For 2.11
  Backport 1.705

- For 2.11.3 (modified)
  Include changes in 1.1002, 1.1003, 1.1004

- For 2.11.2 modified
  Include changes in 1.1004

- Bug 6400
  Options for transfer or creation of tiny URLs when cloning.

- For 2.11
  Backport 1.1003

- Support Fedora 32

- For 2.11
  Backport 1.1002

- Script to remove replicated resources in /res/ directory and send unsub
  request to homeserver of resource author. For use when removing surplus
  access nodes from a domain.

- For 2.11.2 (modified)
  Include changes in 1.1001

- Add documentation for External Tools (LON-CAPA as LTI Consumer).

- For 2.11.2 (modified)
  Include part of changes in 1.960.

- For 2.11.2 (modified).
  Use 2.12 feature (LTI) pre-release, in modified 2.11.2. Domain's
  configuration must be set to prohibit hosting of sessions for
  domain's users outside own domain, and modification must be in
  place on all nodes in domain.

- For 2.11.3 (modified)
  Four 2.12 features included:
  (a) "Done" button for a student to end a timed quiz/exam early
  (b) LON-CAPA as LTI Consumer
  (c) "Deny from" as well as "allow from" for (i) acc parameter used to
      limit access to resource by IPm and (ii) slots with IP access control.
  (d) Short URLs for deep-linking to a resource or folder.

- For 2.11
  Backport 1.999

- Documentation for domain config. for passwords (internal auth.) in manual.

- For 2.11
  Backport 1.999

- Support Ubuntu 20.04 LTS (when released in April 2020).

- For 2.11
  Backport 1.997, 1.998.

- rc3.d is in /etc/rc.d/ for SuSE and SLES 12 and older, but in /etc/
  for Debian and Ubuntu <= 16.

- /etc/init.d/ not used wher systemd (not SysV) runs loncontrol, i.e, for:
  RHEL/CentOS/Oracle 8; Oracle 7; SLES 15; Ubuntu 18.04; Fedora >= 26.
- rcN.d (N = 0 .. 6) are in /etc/rc.d/ for SuSE and SLES 12 and older, but
  in /etc/ for Debian and Ubuntu <= 16.

- For 2.11
  Backport 1.996

- Update categoryname and description for loncom/xml/LCMathComplex.pm.

- For 2.11
  Backport 1.994, 1.995

- For 2.11
  Correction to 1.797.2.94 backport of rev. 1.957.

- Support perl 5.30

- Support Fedora 31

- For 2.11
  Backport 1.993

- Support Oracle Linux 8

- For 2.11
  Backport 1.982

- For 2.11
  Backport 1.920

- For 2.11
  - Add tag removed in 1.797.2.100

- For 2.11
  Backport 1.992

- Make check_authoring_spaces.pl available in /home/httpd/perl/debug

- For 2.11
  Backport 1.976

- For 2.11
  Backport 1.985

- Bug 6754. LON-CAPA as LTI Provider.
  Domain configuration to support session expiration in LON-CAPA,
  after user logs out of LTI Consumer which originally launched session,
  (if Consumer supports logoutServiceUrl; e.g. custom_logout_url in Canvas).

- For 2.11
  - Backport 1.984, 1.986, 1.987, 1.988, 1.989, 1.990

- For 2.11
  - Backport 1.983

- Support Oracle Linux 6.

- Support Oracle Linux 7

- Support RHEL 8 (and CentOS 8, once released).

- Eliminate error when building tardist on distros which use systemd to start
  or stop loncontrol.

- Set mode to 644 for /etc/systemd/system/loncontrol.service

- Bug 6910
Gracefully handle display (and preview) for External Resources for which
Content-Security-Policy or X-Frame-Options prevent display in iframe in LC.

- Support Fedora 30.

- loncron will check for changes in IP addresses of LON-CAPA hosts in network.
  Domain configuration for recipient of e-mail if changes occur. Also logged
  permanently in /home/httpd/perl/logs/hostip.log

- Bug 6792
  - Replace a non-ascii character in the filename of uploaded file with an
    appropriate ascii character (if available).
  - If lonnet::clean_filename() reduces filename to .extension, prepend
    timestamp_milliseconds.

- For 2.11
  Backport 1.981.

- Add checksums file for 2.11.3

- For 2.11
  - Backport 1.980

- Remove dist attribute from file tag used to add loncontrol.service so
  file is included in Manifest when building tar file for release.
- loncontrol.service is put in /home/httpd/perl/systemd in distros which
  are still using init.d/loncontrol.

- For 2.11
  Backport 1.979

- Correct location for systemctl executable in Ubuntu 18LTS.

- For 2.11
  Backport 1.971, 1.972, 1.973, 1.974, 1.975, 1.977

- For 2.11.2 (modified).
 - Use 2.12 feature (tiny URLs to deep-link) pre-release, in modified 2.11.2.

- Bug 6400
  - Enforce access restrictions for content which is deeplink-only (users
    with "advanced priv for current role are exempt).
  - Support "key" link type in deeplink parameter (requested link must either
    be sent with linkkey as element in POSTed data, or with linkkey in query
    string).  Corresponding value must match key set in deeplink parameter.

- Reverse part of change in rev. 1.975.
  1.975 had caused loncontrol.service to be written to /, and permissions
  for / to be changed from 0755 to 0700, when UPDATE was run on distros
  other than: SLES 15, Ubuntu 18.04 LTS, Fedora 26, 27, 28, 29.
  Sorry about that.

- Domain config for load balancer to use cookie to record offload target.
  Subsequent requests by same user/browser will send requests to same target
  if remote session still active, and remote node not overloaded.

- systemd (not SysV) runs loncontrol for stop/start/restart LON-CAPA daemons
  for: SLES 15, Ubuntu 18.04 LTS, Fedora 26, 27, 28, 29

- systemd (not SysV) runs loncontrol for stop/start/restart LON-CAPA daemons
  for: SLES 15, Ubuntu 18.04 LTS, Fedora 26, 27, 28, 29
- remove incomplete (unused) item for firewalld added in 1.972.

- Suport SLES 15.

- Support SLES 15
- systemd (not SysV) runs loncontrol for stop/start/restart LON-CAPA daemons
  for: SLES 15, Ubuntu 18.04 LTS, Fedora 26, 27, 28, 29

- Support perl 5.28

- For 2.11
  Backport 1.956, 1.957, 1.965, 1.966, 1.967.

- LON-CAPA SSL PKI for connections to other nodes, and replication of
  published content from other nodes.
  - script to create new SSL key and/or SSL certs (host cert and/or
    hostname certs

- Add missing closing tag needed for changes in rev. 1.968

- Support Certificate Revocation List checking when using SSL channel
  for key exchange during negotiation of connection to remote lond.

- Support Ubuntu 18.04 LTS

- Support perl 5.26

- MathJax 2.7.4

- Bug 6754 LON-CAPA as LTI Consumer
  Support for access control using slots for both "gradable" and "non-gradable"
  external tools.

- Bug 6400 Tiny URL for deep-linking.
  Requires Short::URL and String::CRC32 modules from CPAN. Dependency on
  perl-Short-URL needs to be added to LONCAPA-prerequisites.

- Bug 6754 LON-CAPA as LTI Consumer
  Parameters available for instance of an external tool will differ,
  depending on whether the tool has been set to be "gradable".

- Bug 6754 LON-CAPA as LTI Consumer
  - Providers can pass scores back to LTI 1.0 Extension (Outcomes Service).

Bug 6754 LTI Integration
- ltiutils.pm contains common LTI routines (to facilitate re-use).
  - &check_nonce() moved from ltiauth.pm to ltiutils.pm.
  - &set_callback_secret() moved from lonexttool.pm to ltiutils.pm, and
    renamed &set_service_secret().
  - &sign_params(), &get_tool_lock(), and &release_tool_lock() moved from
    lonexttool.pm to ltiutils.pm
- ltiroster.pm will service requests for course membership information
  from an LTI Provider, where domain configuration for Tool permits this
  service, and launch (by Instructor( included ext_ims_lis_memberships_id.

- Bug 6754 LTI Integration: LON-CAPA as LTI Provider
  - Move auth/lonlti.pm to lti/ltiauth.pm

- Bug 6754 LTI Integration: LON-CAPA as LTI Provider
  - Work in progress

- Update jquery to 3.2.1 and jquery-ui to 1.12.1.

- MathJax 2.7.2

- For 2.11.2 (modified).
  - Use 2.12 feature (LTI) pre-release, in modified 2.11.2.
  - Backport 1.927

- For 2.11.2 (modified).

- For 2.11.2 (modified).
  Use 2.12 feature (LTI) pre-release, in modified 2.11.2. Domain's
  configuration must be set to prohibit hosting of sessions for
  domain's users outside own domain, and modification must be in
  place on all nodes in domain.

- For 2.11.2 (modified).

- For 2.11
  - File needed, but omitted from previous additions for 2.11 (rev. 1.797.2.1)

- For 2.11
  - Reverse one change in 1.797.2.1, to include the icon used for kudos in
    discussion posts.

- File extension needed.

- Add some new help files previously included in the Authoring Manual.

- Add some new help files previously included in the Authoring Manual.

- Bug 6754. Make LON-CAPA an LTI Tool Consumer (LTI 1.1).
- External Tool cannot be copied via Course Editor's Paste Buffer from one
  course to another if course's domains are different.
- Copying of an External Tool within a course creates new instance of the
  tool.
- Add documentation to Course Editor for External Tool.
- Add icon specifically for External Tool.

- For 2.11
  - Backport 1.946

- For 2.11
  - Backport 1.951

- Include script to dump contents of memcache in debugging tools.

- For 2.11
  - Backport 1.948, 1.949, 1.950

- Add images for "Authoring Space Requests" and "Helpdesk Access" help pages.

- Show appropriate user management help for the user's context (i.e., domain,
  author or course), and user's permissions (i.e., edit or view privilege).

- Support perl 5.24

- Use of LON-CAPA SSL certificates to create secure channel for exchange of
  encryption key between LON-CAPA nodes can be set to: "no", "yes", "req"
  (i.e., required) separately for outbound (i.e., lonc) and inbound connections
  (i.e., lond) in domain config (default domain only on a multi-domain server).
- Can differentiate between connections between nodes in same domain, nodes
  in same "internet" domain. and nodes in neither.
- Supercedes use of loncAllowInsecure and londAllowInsecure from loncapa.conf
  on each node.
- Run /home/httpd/perl/loncron --justreload (as www) after changing domain config

- Accommodate re-naming of Spreadsheet Authoring help file.

- For 2.11
  - Backport 1.943

added schema documentation as help in the text editor

replaced reaction editor by a real-time preview

- Add images used for "Helpdesk Access" button and configuration screen
  available to course owner.

- For 2.11
  - Backport 1.873 (remaining part).

- For 2.11
  - Backport 1.942

- Users with vgr priv can display first access times for students for
  course, map/folder, or resource with interval (timer) parameter set.

- For 2.11
  - Backport 1.941

- Add image for Authoring Space Configuration item in Preferences menu.

- For 2.11
  - Correction to backport rev. 1.940 in rev. 1.797.2.82.

- For 2.11
  - Backport remainder of rev. 1.940.

- For 2.11
  - Backport 1.912, 1.913.

- For 2.11
  - Backport 1.904, 1.940.

- Explicitly list filenames for jQuery addons and codemirror.
- Move codemirror block.

- Domain Trust Settings

- For 2.11
  - Backport 1.938.

- Eliminate jsMath.
  Use MathJax instead in cases where jsMath use is indicated in a resource,
  in a user's preferences, or in course preferences.

- Add LONCAPA/LWPReq.pm (wrapper for LWP UserAgent to accommodate certificate
  verification for SSL).

- For 2.11
  - Backport 1.936

- Add documentation for category-based grading using the spreadsheet.

- For 2.11
  - Backport 1.935

- Add checksums file for 2.11.2

- For 2.11
  - Correction to 1.797.2.73 backport of rev. 1.923.

- For 2.11
  - Correction to 1.797.2.73 backport of rev. 1.923

- For 2.11
  - Backport 1.931

- For 2.11
  Typo in rev. 1.797.2.73

- For 2.11
  - Backport 1.928, 1.934

- MathJax 2.6.1

- For 2.11
  - Backport 1.922, 1.923

- Add files used to display status of LON-CAPA SSL certificates to Domain
  Coordinators.

- Course "Authoring" Space
  "Import a File" and "Image" blocks in Colorful Editor include a "Choose File"
  link which allows selection of published files from "Course Authoring" Space,
  or upload of a new file (with auto-publication).

- Support Ubuntu 16.04 LTS.

- Bug 6808. New course container -- "Placement" for Placement Tests.
  Work in progress.

- Bug 5917. Course preference to disable anonymous posts to discussion.
  - uses 'pac' priv.

- Bug 6815.

- Bug 6754. Make LON-CAPA an LTI Tool Consumer (LTI 1.1). Work in progress.

improved layout for Daxe+preview; split.js is no longer needed

added a preview for Daxe, updated automatically when the document is saved

integrated Daxe, opening in a separate window for now

- Bug 6800
  - Move HTML files used for pop-up window in reactionresponse to
    /adm/reactionresponse directory to support public access.
  - Replace use of &EXT('query.') with javascript to retrieve values for
    reaction, field and id from query string, and replace call to &xmlparse()
    with HTML entity to provide rightarrow.

Upgrading jQuery
from jquery 1.6.2 to 1.11.3
from jquery-ui 1.8.16 to 1.11.4
Kept "smoothness" theme
Removed image files for unused "lightness" theme

added implementation for <lm>

File size checking for uploaded files

A new javascript file, file_upload.js, handles client side file size checking.
The function, checkUploadSize(), accepts an html file input element and a maximum
file size (in bytes) as input.  If the size of the file to be uploaded exceeds the
size allowed, a message is displayed the the element is cleared.  Server side
checking is still used if it passes this test.

Loading file_upload.js adds event handlers to file input elements with
class="flUpload".
    <input type="file" class="flUpload" />

It also looks for a hidden element with id="free_space" that contains the maximum
upload size.
    <input type="hidden" id="free_space" value="$free_space" />

The free space is usually calculated by subtracting a user's disk usage from their
quota allowance.  In some cases it is a fixed value.

I have implemented this for every upload instance I could find.  These include:
* Message attachments
* Authoring space
* Portfolio
* Course editor
* Essay response problems
* Helpdesk request forms
* RSS feed uploads

- For 2.11
  Backport 1.917, 1.918, 1.919

- WebDAV documentation
  - OS specific instructions moved to separate help files.

- Add one more image file used by WebDAV help file.

- Help file for WebDAV access to Authoring Space.

- For 2.11
  - Backport 1.914, 1.915

- Bug 6777 Geogebra for HTML5
  - Update to version 5.074 (8 MB tarball).
    Use of version 5.0 causes URL of a problem containing functionplotresponse
    item to be sent to: https://tube.geogebra.org/api/json.php

- Geogebra for HTML5
  - Update to version 4.4 (14 MB tarball), IE11 supported

- Geogebra for HTML5
  - Replace original 110MB geogebra_html5 tarball (4.2 test) with a smaller
    tarball for 4.2 (21 MB).

update for ckeditor, with a new plugin for <chem>

updated ckeditor to 4.4.7 with an additional plugin to handle <m> with MathJax

- For 2.11
  Backport 1.911

- Document SSO Authentication for a central authentication service (CAS).

- For 2.11
  Backport 1.909, 1.910

- Add checksums file for 2.11.1

- Set categoryname to handler (even though it has no handler sub) so
  permissions and ownership will be consistent with other perl modules.

- For 2.11
  Backport 1.908

- Update JSME to 2015-02-09 version.

- For 2.11
  Backport 1.907

- tth.so for perl 5.20 (SuSE 13.2) and SLES12

- For 2.11
  Backport 1.906

- Bug 6733
Documentation for Shibboleth Authentication

- For 2.11
  Backport 1.877, 1.897, 1.898, 1.899, 1.901, 1.902, 1.903, 1.905

Bug 4729
  - Support Jsmol (HTML5/javascript)
  - Update Jmol to 14.2.12_2015.02.11
  - Jmol.js formed by concatenating JSmol.min.js and Jmol2.js for backwards-compatibility
  - Sign .jar files with InCommon code-signing cert from MSU (expires Jan 5, 2018).
  - Installation mechanism now follows similar mechanism to one used for DragMath and
    MathJax

authoring space overhaul
this update tries to improve the user experience of the authoring space.

added codemirror for xml editor and script tags in colorful editor
added possibility to deactivate codemirror in author settings
added dropdown menu to insert problem templates into xml editor (thanks to tobias reinhardt)
added feature of saving current scrollposition on save when editing problems
added possibility to fold blocks in colorful editor, this state will be saved and restored
added shortcuts to create empty problems, html files and directories

and other smaller features and bugfixes

- Support SuSE 13.2

- Support SLES12

- Optionresponse in "checkbox" mode:
  - Additional (optional) attributes: maxcheck and mincheck available to enforce
    requirement on number of checkboxes which may be checked.
  - Intended use case is polling with optionresponse used in survey mode,
    and maximum number of selections voter may make is to be limited.

added search functionality to authoring space

- users can now search their author space for files. the search functions searches in the file name and title. use of regular expressions and case sensitivity can be enabled. the content table of the current directory will shrink so that only matching entries are shown. a second table appears underneath to show results in other directories.
- german translation has been added.

LC Math Editor js file
- Use correct source.
- Use <file> instead of <fileglob> as there is only one file.

added new LON-CAPA math editor for mathresponse and formularesponse to replace the DragMath applet

- Bug 4729 Molecule editor for chemresponse.
  - JSME instead of JME (eliminate dependency on Java).
  - Molecule editor will resize to when window is resized.

- For 2.11
  - Backport 1.896

- Reorganization of domain configuration categories requires additiional
  documentation files for Domain Coordinators.

- For 2.11
  - Backport 1.895.

- Add checksums file for 2.11.0

- For 2.11
  - Backport 1.892, 1.893, 1.894.

- Bug 6535
  - For 2.10.1 -> 2.11.0 transition inhibit generation of unwanted WARNINGS
    (and lpmlsave files) for cases where 2.10.1 was installed recently (and
    hence files have recent timestamps), by storing old release number
    in /etc/loncapa-release.prev and then doing sha1-based checksum comparison
    with checksums for files in dns_checksums/2.10.1.tab

- Routines moved from refresh_courseids_db.pl to lonrelrequtils.pm
  to facilitate re-use: parameter_constraints(), coursetype_constraints(),
  commblock_constraints(), coursecontent_constraints(), read_paramdata(),
  update_reqd_loncaparev().
- Clean-up handler phase for lonblockingmenu.pm and courseprefs.pm
  (query string contains phase=releaseinfo) includes call to update
  LON-CAPA version requirement in course's environment.db and course's
  record in domain's nohost_courseids.db
- Display of details for LON-CAPA version requirement in course now
  includes any requirements based on blocking (timer trigger, printout
  or content access).

German Translation of Help Files

- For 2.11
  - Backport 1.878, 1.887, 1.888, 1.889, 1.890, 1.891

- Support Ubuntu 14.04 LTS

German Translation of Help File "Physical Units"

New help file about how to write multilingual problems, e.g. explains the translated tag and the languages function.
(Interface inclusion, i.e. help link, will follow later)

German Translation of Help File

German Translation of Help Files

- For 2.11
  - Backport 1.884, 1.885, 1.886.

- Fix some typos in description of createpending.pl script

- Add createpending.pl script to /cgi-bin for use in validation of
  pending course requests for unofficial courses, textbook courses and/or
  communities.

German Translation of Help Files

- For 2.11
  - Backport 1.883.

- CGI script to process a self-enrollment request which had been queued,
  pending validation.
  - Script requires values for fields specified in domain configuration
    for self-enrollment validation.
  - Intended to support validation of self-enrollment requests on a
    third party system/server which handles payment etc.

- For 2.11
  - Backport 1.882

- Add quotacheck.pl
  - CGI script for use on a library server to display disk usage and quota
    for course content uploaded directly to course/communities in the domain.

- For 2.11
  - Backport 1.881.

German Translation of "ForceIDChange" Help File

- For 2.11
  - Backport 1.880

- 2.11.0.RC3

- For 2.11
  - Backport 1.879

- Modify changes in lonuserutils.pm rev. 1.161, so "Force ID change" message
  is not shown to users self-creating accounts.
- Wording change to labels for "Force ID change" and "Update ID in courses"
  message, to make them shorter, so "Login Data" can still float into right
  column.
- Add help document to explain ramifications of forcing ID change.
  - eliminate unhelpful: "only do if you know what you are doing".

German translation of help files

- Additional jquery.countdown.js localization files.

- For 2.11
  - Backport 1.876.

- Access to information about courses in a domain with six character
  unique codes (html, xml or csv format).
  - Initial use case is for a separate portal (token-based auth)
    where students enter the code to sign up for a specific "textbook"
    course.

- For 2.11
  - Backport 1.875.

- Bug 6685
  - Sign DragMath .jar files with InCommon code-signing cert from MSU
    (expires Dec 4, 2014).
  - Update to DragMath 0.7.9
  - Installation mechanism now removes files from older DragMath version,
    and follows similar mechanism to one used for MathJax etc.
  - xhtml for EditMathPopup.html and MaximaPopup.html
  - codebase changed from classes to applet (DragMath change: 0.72 to 0.7.9).
    - EditMathPopup.html and MaximaPopup.html now installed in:
      /home/httpd/html/adm/dragmath (paths in response.pm and
      lonhtmlcommon.pm updated accordingly.

- For 2.11
  - Backport 1.874.

- MathJax 2.3

- For 2.11
  - Backport 1.872, 1.873 (part).

- New help files.

GeoGebra 4.4

- For 2.11
  - Backport 1.863, 1.864, 1.865, 1.866, 1.867, 1.868, 1.869, 1.871.

- Correction to target for loncapa_apache_local.conf (added in rev 1.825).

New problem template:
Multilingual problem using optionsresponse
Makes use of language function and translated tag

German Translation of Help File "mathresponse creation"

- Correction to categoryname for LCMathComplex

- Support SuSE 13.1

- Support Fedora 20
  Include compiled tth.so for perl 5.18

- Add icon for Blank Web Page.

- Consistent title capitalization in table of contents for author manual and
  course coordination manual.
- Remove TEXitemgroup_attribute.tex (TEXitemgroupwidth_attribute.tex which
  is a duplicate is retalned).

- Documentation
  - "Edit" icon for Wishlist is different from "Edit" icon used in inline
    "Functions" edit content.

- For 2.11
  - Backport 1.861, 1.862.

German translation of help files

- Bug 6629.
  - Re-enable access to functionality in Math::Complex in Safe Space by
    copying Math::Complex 1.55 to LONCAPA::LCMathComplex and eliminating use
    of Config.pm
    - Whenever ./UPDATE is run to install or update LON-CAPA, the code which
      sets $nvsize in the standard Math::Complex script will be run in
      lcmathcomplex.piml and the value of $nvsize will be set to the
      appropriate value: 4, 8, 10, 12 or 16 in LONCAPA/LCMathComplex.pm.

- For 2.11
  - Backport 1.860

- Add /home/httpd/perl/debug/rebuild_lastlogin.pl

- For 2.11
  - Reverse part of rev. 1.797.2.3. lonhtmlgateway.pm now included in 2.11.

- For 2.11
  - Backport 1.832, 1.833 (part), 1.835, 1.839, 1.844, 1.845, 1.850, 1.851, 1.852,
    1.853, 1.854.

- LON-CAPA bookmarks no longer supported (replaced by stored links functionality).

- Remove eps and gif for vkbm help image (no longer used).
- Add .eps files for help images: chkrole, forw, back
- Move a couple of documentation files to conform with alphabetized order.

- For 2.11
  - Backport 1.857

- 2.11.0.RC2

- For 2.11
  - Backport 1.856.

- Information about versions/checksums for a particular LON-CAPA version
  moved to separate files (one for each version) in:
  /home/httpd/lonTabs/dns_checksums  (e.g., 2.11.0.RC1.tab)

- For 2.11
  - Backport 1.855.

- Add en.pm and he.pm localization files, since these languages are offered
  as choices. Transalations (for he.pm) needed.

- Adding documentation for Numerical Response choice for Simple Problem

- Add images for "new discussion" and "new feedback" for contextual help for
  Course Contents page.

- Add help file for Course Roster item in "Collaboration" tab of Course Editor
- Add some icons for use in contextual help and manuals.
- Tables in parameter setting screens replaced * with a wrench icon.

- Semi-colon required after each file name within <filenames></filenames>.

- For 2.11
  - Backport 1.850.

- Eliminate discussion of Remote Control from General Intro help document,
  (By default, new LON-CAPA user accounts created in the past several
   years have the remote control *not* set to be launched, but the inline
   menu is used instead).
- Add some image files for icons used in inline menu.

adding Authoring_Library_Scripts.tex

- For 2.11
  - Backport 1.848

- Include link to Course/Community catalog in Functions menu on roles/courses
  screen, if user's domain has log-in page preference to show course catalog
  link.
- Wording changes to shorten titles of items in Functions menu.