KB# 1676929
Last Updated: P20190317SBL


This log of recent point releases for Thread’s iOS application shows the most recent updates at the top. If your organization allows access to the App Store, tap the in-app help (?) icon and select Check for Updates to install or update Thread for iPad. Otherwise, your internal technical team will handle the update.

Point release detail

1.10.1 - April 9, 2019

  • Reduces lag time throughout the app, especially when viewing duration charts.
  • Fixed bug where new data points wouldn’t refresh the currently selected chart.
  • Streamlined the install process used in 1.10.

1.10 - April 8, 2019

  • Reduces lag time throughout the app, especially when viewing duration charts.
  • Fixed bug where new data points wouldn’t refresh the currently selected chart.

NOTE: Installs of this version that terminated before completion resulted in an incomplete install. We recommend anyone on 1.10 should update to 1.10.1.

1.9.3 - April 1, 2019 

  • Reduces lag time when viewing charts.
  • Look for more updates in the coming weeks to improve performance in various parts of the app. 

1.9.1 - March 18, 2019

  • Improved syncing performance

1.9 - March 6, 2019

  • New Chart Type - Total Mastered Targets (cumulative): On Discrete Trial and Interval charts, tap the Σ icon to see the number of Total Mastered Targets by week.
  • Improved smoothness when scrolling through active programs.
  • Added popup help message about how to safely edit steps in a Task Analysis.
  • Supervisors: Chart notifications are now cleared as soon as the chart is viewed. Additionally, all notifications can be cleared in one tap at the bottom of your notification inbox.
  • Miscellaneous bug fixes and usability improvements.

1.8.2 - February 22, 2019

  • Improved syncing performance.
  • Miscellaneous bug fixes.

1.8.1 - February 20, 2019

  • Added support for recording trials for specific targets in errorless teaching programs.

1.8 - February 7, 2019

  • Smart Notes: Save even more time by having Thread suggest a quick summary to include in your session note.
  • The last edit time and author are now shown at the top of the screen when editing a program.
  • Fixed an issue where customized program fields were not displaying properly.

1.7.3 - January 24, 2019

  • Added ability for parent or guardian to sign a session note right from the app. 

1.7.2 - January 18, 2019

  • Improved function of attempted trials per day on main student page.
  • Upgraded the programming language used to build the app under the hood.  

1.7.1 - January 10, 2018

  • Reinforcement schedule can now be set in either seconds or minutes.
  • Added ability to stop and graph a discrete trial data point early.
  • Fixed issue found briefly in 1.7 where charts could no longer be viewed quickly from the program drawer
  • Fixed issues related to onboarding new teachers.
  • Miscellaneous bug fixes and improvements.

1.6.1 - November 30, 2018

  • Adds Data Type icon (Pre-Test, Post-Test, Probe) editing to frequency and duration graphs.
  • Fixes issue where procedure information was missing in focus mode.
  • Prevents the last supervisor account on a team from accidentally being deactivated.

1.6 - November 26, 2018

  • Fixed issue where interval programs with criterion met would get stuck in "Pending Decision".
  • New phase changes without any data taken yet will now appear on charts more consistently.
  • Fixed issue where discriminative stimulus would occasionally be incorrect in the drawer.
  • Miscellaneous bug fixes and usability improvements.

1.5.2 - October 15, 2018

  • Supervisors may now edit the date, score, and phase of frequency/duration data points.
  • Fix issue where using "Enter Score" would cause app to crash.
  • Miscellaneous bug fixes and usability improvements.

1.5.1 - October 9, 2018

  • Adds data point editing to frequency and duration charts.

1.4.4 - October 1, 2018

  • Changed the last entry date on archived programs list from relative to absolute format.
  • Fixed issue where selecting Parent Update would cause app to crash.
  • Miscellaneous bug fixes and usability improvements.

1.4.3 - September 24, 2018

  • New maintenance mode, a list of all previously mastered targets for a randomly selected student in the blue drawer. This is an opt-in beta feature -- chat with us in-app to enable it for your account! Read more...
  • Significantly improved performance when browsing student programs.
  • Bugs fixed and ABC Data issues resolved.
  • Added a last-data-point date to the archived programs list.

1.3.2 - August 12, 2018

  • Fixed an issue where printing certain graphs would cause a crash.

1.3 - July 17, 2018

  • A new Hide / Show toggle called Weekdays Without Data now shows you days where no data was taken. Find it just above the program chart, upper left.
  • Bug squashed: newly created programs sometimes required close / restart of Thread before appearing on program list.
  • Improved data sync warning text in orange alert bar indicates data has not been saved since last sync date & time.
  • If data sync has not occurred, users see a new warning at the Switch Team logoff screen including data loss warning, HIPAA notice, and text "We noticed you have unsynced data."

1.2.1 - June 22, 2018

  • Significant page-load performance improvements.

1.2 - June 21, 2018

  • View your Thread version or get an update from the App Store -- just tap the (?) icon inside Thread.
  • Fixed issue where phase popup view scrolls to middle of field
  • Current behavior phase titles in chart dropdowns now show
  • Changed decision point logic so 5 or 3 data paths counts correctly without phase change
  • New ability to choose a reason for archiving a program: “On Hold”, “Mastered,” or "Discontinued".
  • Archived programs are now organized by student name.

1.1.1 - May 26, 2018

  • In Thread charts, a thin blue border surrounds any data point with a note attached. This feature now applies to all data types including frequency and duration.
  • Added new target date range heading in the edit screen for past conditions in a program.
  • Added more specific Edit links in Thread chart phase popups; Edit is now Edit Program for the current phase, and Edit Condition Record for past phases.
  • Bug fixes and performance improvements.

1.1 - May 2, 2018

Install and update Thread from the App Store on your iPad.

  • Added ability to delete current phase and edit previous phases for Discrete Trial, Task Analysis, and Interval programs.
  • Added bulleted target lists to phase popups for improved readability.
  • Improved performance when switching between Private, Charts, and Public tabs.
  • Fixed issue where targets occasionally could not be set as current.
  • Fixed issue where app would sometimes crash during full screen task analysis recording
  • Fixed issue where archived programs couldn't be deleted on iOS 11
  • Fixed issue where moving a backdated point into another phase caused phases to appear out of order (causing “linked” or split conditions).

1.0.6 (13) - Apr 4, 2018

Install and update Thread from the App Store on your iPad.

  • Introducing ABC data collection! Tap the overflow menu (...) next to any program, then "ABC" to access it.
  • Improved syncing performance.

1.0.5 (3) - Mar 28, 2018 - Thread moves to the App Store!

Now install and update Thread from the App Store on your iPad. Click the link or find it on the home page header at www.threadlearning.com

  • Manage your kiddos from our new ‘Manage Students’ menu
  • Improved interface for teams
  • Bug fixes and improvements for our best user experience yet!
  • Editing a task analysis step no longer forces a phase change

1.0.4 (72) - Mar 8, 2018

  • Now supervisors can move any data point into any phase of a private program. Tap on a data point, then "Edit", then "Move Phase." Shown here:
  • Fixed glitch where recording task analysis trials in focus mode was unresponsive.

1.0.4 (18) - Mar 1, 2018

Mandatory fix for mastered targets issue.


  • Added ability to pick profile photos for your students.
  • Revamped chat and help center with answers to FAQs. (We've switched our live chat service, so your chat history will be cleared after installing this update. If you need to reference a previous chat, contact us to obtain a transcript.)
  • Fixed issue where undo button wasn't responsive on task analysis programs.
  • Miscellaneous bug fixes and improvements.


  • Duration data is charted with minutes on the y-axis when total duration is at least 1 minute long.
  • Frequency/duration data points no longer automatically appear with a 0 if you entered no data for that program. You may still add data points with a 0 manually via the "Enter Score" menu.
  • Added ability to delete frequency/duration data points.

Program Entry:

  • Increased maximum number of "Criterion for Mastery" days to 10.
  • Added Save button to the top right of the program editor.

1.0.3 (879) - Feb 27, 2018

  • Fixed issue with loading curriculum templates into frequency/duration programs.
  • Fixed issue where navigating away from program entry didn't prompt you to save.
  • Fixed issue where viewing frequency/duration graphs without data occasionally caused app to crash.

1.0.3 (871) - Feb 22, 2018

  • Field changes: "Additional Condition Information" added to all programs, "Frequency of Data Collection" and "Baseline Date/Score" added to all measure types.
  • Errorless teaching: new option for highlighting baseline targets.
  • Supervisor alerts are now filtered by your assigned students and settings.
  • Disabled "Move Phase" option for Task Analysis data.

1.0.3 (655) - Jan 29, 2018

  • Added the option to edit the date of a data point.
  • Added a page where you can restore deleted data points to the book menu.
  • Fixed least intrusive prompt alert / errorless teaching rules.
  • Miscellaneous formatting tweaks.

1.0.3 (636) - Jan 18, 2018

  • Fixed issues related to running public interval programs.
  • Support for alerts related to programs with no recent data.
  • Fixed issue where app would get stuck when logging into new team.

1.0.3 (599) - Jan 16, 2018

  • Fixed issue where new curriculum targets couldn't be set to current.
  • Support for custom data decision rules that monitor least intrusive prompt level.
  • Support for custom sorting of programs by "Setting" field.

1.0.3 (593) - Jan 14, 2018

  • Fixed phase bar alignment issues.
  • Prompt information for errorless teaching trials is now displayed on the chart.
  • VB-MAPP milestones are now shown on program popups.
  • Added support for customized prompt hierarchies, default reinforcement schedule, and "Setting" field.

1.0.3 (524) - Jan 11, 2018

  • Added interval “focus” data collection mode for easier backdating - simply tap on the name of an interval program that is in progress, and a full screen data sheet will appear.

1.0.3 (523) - Jan 9, 2018

  • Added errorless teaching mode for discrete trial programs.
  • Improved custom curriculum navigation.
  • Stability fixes.

1.0.3 (471) - Dec 20, 2017

  • Bug fixes and stability improvements.

1.0.3 (445) - Dec 19, 2017

  • Fixes stability issues related to adding programs to the public drawer and undoing trials.
  • Thread team names are no longer case-sensitive at login.
  • Support for navigating custom curriculum library by subject.

1.0.3 (430) - Dec 14, 2017

Mandatory update due to our new syncing service. There may be a black screen for several minutes when you open the app the first time after updating. Please be patient while your data is converted to the new sync format.

  • Major improvements to sync speed and reliability.
  • "Switch User" in the settings menu has been changed to a user profile page, where you can either sign out or edit your user details.
  • Print archived programs.
  • Mastered targets can now be changed back to current.
  • Future targets can now be changed to mastered.

1.0.3 (296) - Dec 3, 2017

  • Added support for duration data collection.
  • Fix issue where behavior charts automatically displayed 0 points prior to program created/first data entered.
  • The blue drawer now responds to program changes (e.g. new phase, decision made) by automatically refreshing the page.
  • Stability improvements.

1.0.3 (231) - Nov 27, 2017

  • Fixed issue where extra phase change lines appeared on printed graph.

1.0.3 (225) - Nov 27, 2017

  • Fix issue where Enter Score was missing for frequency programs.
  • Stability improvements.
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