WhiskerOS™ Releases

• Version ending in 1.35.0 - 23 March 2026

  Here’s what’s new!

  This update brings enhancements to the Litter-Robot 5 and EVO experiences, including additional notifications. We've also made general improvements and fixed a few bugs to keep things running smoothly.

  Thanks for using Whisker!

• Version ending in 1.34.0 - 2 February 2026

  Here’s what’s new!

  You can now view insights graphs in your local time instead of UTC, making it easier to understand at a glance. This update also adds language support for more countries, along with bug fixes and general improvements.

  Thanks for using Whisker!

• Version ending in 1.33.0 - 19 December 2025

  Here’s what’s new!

  This update brings enhancements to the Litter-Robot 5 and EVO experiences, including additional notifications and a new cycles graph. We've also made general improvements and fixed a few bugs to keep things running smoothly.

  Thanks for using Whisker!

• Version ending in 1.32.0 - 25 November 2025

  Here’s what’s new!

  Introducing the new Litter-Robot 5, Litter-Robot 5 Pro, and Litter-Robot EVO, bringing enhanced performance and smarter pet insights. This release also includes general bug fixes and stability across all robot models.

  Thanks for using Whisker!

• Version ending in 1.31.0 - 17 November 2025

  Here’s what’s new!

  Small fixes and improvements to keep things running smoothly for you and your pets.

  Thanks for using Whisker!

• Version ending in 1.28.0 - 21 October 2025

  Here’s what’s new!

  Easier Account Management
  We’ve made it simpler to manage your account. You’ll notice an updated Account page for a more streamlined experience, stronger security improvements, and general bug fixes to keep everything running smoothly.

  Whisker+
  Whisker+ helps you understand your pet like never before. With this update, you’ll have access to:
  

  Extended timeframes and historical trends to see how your pet’s patterns evolve over time
  New graphs and visualizations for deeper, more intuitive insights
  Smart storytelling that turns data into meaningful takeaways about your pet’s behavior
  Daily recap reports to help you stay in tune with your pet’s day

  Thanks for using Whisker!

• Version ending in 1.27.0 - 30 September 2025

  Here’s what’s new!

  This update makes it easier to monitor your pet’s activity and keep devices running smoothly. You’ll see improvements to device management, including new offline notifications, as well as design updates, easier access to helpful resources, and general fixes to improve performance.

  Thanks for using Whisker!

• Version ending in 1.26.0 - 28 August 2025

  Here’s what’s new!

  Fix Weight Mix-Ups with Ease
  Weight reading assigned to the wrong pet? No problem. You can now reassign or unassign weight entries—one of our most requested features is finally here!

  Smarter Pet Profiles
  We’ve enhanced the pet onboarding flow with new profile fields to help you capture more about your furry friend from the start.

  A More Consistent Look and Feel
  This update includes font improvements across the app, making things easier on the eyes and more polished overall.

  Hello, You!
  Enjoy a new personal touch with warm greetings on the Home screen—because both you and your pets deserve to feel welcome.

  Thanks for using Whisker!

• Version ending in 1.25.0 - 13 August 2025

  Here’s what’s new!

  Discover Your Pet’s Zodiac Sign
  Pets with a birthday added to their profile will now display a zodiac symbol. It’s a cosmic touch of fun that brings a little more personality to your pet’s profile.

  Support Is Just a Tap Away
  We’ve added a new support icon right on the home screen. Tap it to go straight to the Whisker CX Portal—making it easier than ever to get the help you need, when you need it.

  And as always…
  This release includes minor improvements and bug fixes to keep everything running smoothly for you and your pets.

  Thanks for using Whisker!

• Version ending in 1.24.0 - 31 July 2025

  Here’s what’s new!

  This update makes the app more intuitive and personalized. You can now celebrate your pet’s birthday with a new in-app experience. We’ve also streamlined the download history button to reduce visual clutter and made navigation easier by letting you tap the Whisker logo to go home.

  Thanks for using Whisker!

• Version ending in 1.23.0 - 30 June 2025

  Here’s what’s new!

  Remembering Our Pets
  You can now memorialize a pet directly in the app—because every pet leaves a lasting mark.

  More Personal Pet Profiles
  Add more detail to your pet’s profile with new personalization fields, helping you tailor the experience even further.

  Quality-of-Life Updates
  We’ve made it easier to manage your pets in the app: tap the Serial Number to copy it quickly, and enjoy a more consistent experience when adding a new pet.
  Thanks for being a part of the Whisker community!

  Thanks for using Whisker!

• Version ending in 1.22.0 - 19 May 2025

  Here’s what’s new!

  Insights at a Glance
  The new Insights tab provides a quick snapshot of your pet’s interaction with their robot, including trends in weight, visit count, and more. It’s your new go-to for keeping tabs on how your pet is doing.

  Thanks for using Whisker!

• Version ending in 1.20.0 - 25 March 2025

  Here’s what’s new!

  New home screen experience
  Introducing the new Whisker home screen, a central hub for upcoming features that will further enhance your Whisker experience! It is designed for easier navigation and quick access to key information about your robots, pets, and more.

  In-app message and notification language support
  In-app messages and push notifications now support more languages, improving accessibility for all.

  Thanks for using Whisker!

• Version ending in 1.19.0 & 1.19.1 - 10 February 2025

  Here’s what’s new!

  Bug and performance improvements
  This update contains bug fixes and performance improvements to make your experience as smooth as possible.

  Thanks for using Whisker!

• Version ending in 1.18.0 - 14 November 2024

  Here’s what’s new!

  Bug and performance improvements
  This update contains bug fixes and performance improvements to make your experience as smooth as possible.

  Thanks for using Whisker!

• Version ending in 1.17.0 - 30 September 2024

  Here’s what’s new!

  SmartScale® improvements
  We’ve enhanced the SmartScale® feature for improved weight readings and more precise identification of multiple cats.

  Reset Litter-Robot 4
  Users can now reset their Litter-Robot 4 from the app, enjoying more convenience to manage their robot by clearing errors from anywhere.

  Thanks for using Whisker!

• Version ending in 1.16.0 - 29 August 2024

  Here’s what’s new!

  Deep cleaning reminders
  The app will send helpful reminders on how to deep clean your robot to improve its performance and extend its life!

  Hopper activity ordering
  LitterHopper activity will display in descending order like the rest of the activities in the app.

  Graph & pet activity load time
  Users will see significant improvements to load times for our graphs and pet activity data.

  New Litter-Robot 4 Globe Litter Level Statuses
  Newly optimized litter level statuses help you maintain the optimal amount of litter in the globe for better performance.

  App Video Multi-Language Captions
  Users can now select their preferred language for captions when watching in-app videos.

  Thanks for using Whisker!

• Version ending in 1.14.0 - 31 July 2024

  Here’s what’s new!

  Feeder-Robot images
  Enjoy our new dog-friendly Feeder-Robot images.

  Optimized messages
  We’ve updated all of our notifications to ensure they’re as helpful and clear as possible.

  Is your pet healthy?
  Easily mark your pet as “healthy” within your pet’s profile.

  Thanks for using Whisker!

• Version ending in 1.13.0 - 27 June 2024

  Here’s what’s new!

  Shop without logging in
  New users can learn about and shop for Whisker products in the app without an account.

  Helpful messages
  Our Message Center now offers useful information about when and how to perform regular maintenance on your Whisker robot. Revamped app notification settings allow you to easily customize the information you’d like to receive from Whisker.

  Feeder-Robot troubleshooting support
  You will receive additional notifications if your Feeder-Robot is in an error state and needs your help.

  Litter type
  You can tell us what cat litter you use in your Litter-Robot 3 or Litter-Robot 4.

  Thanks for using Whisker!

• Version ending in 1.12.1 - 29 May 2024

  Here’s what’s new!

  Litter type
  We added a new setting where you can tell us what cat litter you’re using in your robot. (Litter-Robot 4 only; Litter-Robot 3 coming soon)

  Account tab
  We reorganized the account tab so that you can quickly find what you're looking for.

  Warranty information
  You can now access your warranty information from within your robot settings screen.

  Usability
  We've continued to improve notifications, usability, design, and the SmartScale algorithm.

  Thanks for using Whisker!

• Version ending in 1.11.0 - 29 April 2024

  Here’s what’s new!

  Refer-a-Friend to Whisker
  Share your referral link with a friend or family right from the app. Give $50 off and get $100 off your next purchase.

  Improvements to SmartScale®
  We’re making weight readings even more accurate with an update to the SmartScale® algorithm.

  Learn about new features
  Get notified when your robot's firmware has been updated, so you can easily learn about the latest and greatest updates!

  Thanks for using Whisker!

• Version ending in 1.10.0 - 2 April 2024

  Here’s what’s new!

  Simplified Shopping:
  You can now shop and manage your account directly in the Whisker App without needing to log in each session.

  Daily Visit Tracking:
  Track how often each of your cats uses your Litter-Robot, so you can easily spot unusual behaviors.

  SmartScale® Improvements:
  The Robot Status screen now prominently shows the individual weekly weight for each of your pets—along with their name & photo.

  Scoops Saved:
  We’ve expanded this feature for Litter-Robot 3 Connect.

  Thanks for using Whisker!

• Version ending in 1.9.0 - 28 February 2024

  This release includes the addition of a ‘Scoops Saved’ counter on your Litter-Robot robot dashboard to help build awareness of how many times your Litter-Robot has been used; enjoy reveling in the realization of how many times you haven’t had to scoop the box! Also included are improvements to the SmartScale algorithm, optimized in-app support for customers that are having trouble with SmartScale, and additional bug fixes and performance enhancements.

  Thanks for using Whisker!

• Version ending in 1.8.2 - 31 January 2024

  We are always working to improve the App experience for Whisker customers. This release is focused on the addition of a few new helpful messages in the Message Center as well added language support for Korean and Thai. We also improved support for different phone types, and released some small bug fixes and performance enhancements.

  Thanks for using Whisker!

• Version ending in 1.8.0 - 30 November 2023

  This update includes a few exciting updates:

  • The launch of the Whisker Message Center. You’ll see a notification icon on the top right corner of your App where you can go to see new messages from Whisker relating to your robots or pets, as well as helpful tips & tricks from the Whisker team.
  • In an effort to ensure that Litter-Robot 4 customers always have the latest features and enhancements, we are going to start automatically updating the firmware on our customers' robots as soon as a new release is available. If you prefer to not receive these updates, you can opt-out within the Mobile App. If you then wish to update your firmware manually, please follow these instructions: Firmware Update Instructions.
  • Better onboarding support for Litter-Robot 4 users in their discovery of how to get the most out of SmartScale(r).
  • We’ve also made a few usability improvements and design updates across the app to continue providing you with the most intuitive and best experience possible!
  • Various performance improvements that will enhance App stability.

  Thanks for using Whisker!

• Version ending in 1.7.0 - 26 October 2023

  Hey, pet parents! This release includes:

  • A fix for a login issue related to extra whitespace
  • General bug fixes
  • SmartScale improvements
  • Performance enhancements
  • Several crash fixes

  Thanks for using Whisker!

• Version ending in 1.6.1 - 1 September 2023

  Hello, pet parents! We're rolling out a new authenticator functionality as part of our efforts to improve security and privacy. Your devices will continue to work as-is, but you might need to log in again. If you’ve forgotten your password, click the “forgot password” link on the app to reset your password. Also included in this release: Improved QR code scanner functionality Localization and bug fixes Performance and security enhancements Thanks for using Whisker!

  • Improved QR code scanner functionality ·
  • Localization and bug fixes ·
  • Performance and security enhancements

  Thanks for using Whisker!

• Version ending in 1.6.0 - 7 August 2023

  Hello, pet parents! We have some exciting updates for you in this release:

  • Introducing weight-based ID using SmartScale®, and gradually releasing to all users!
  • Create profiles for all of your cats that use Litter-Robot 4 and monitor your kitty’s weight changes on their profile
  • SmartScale® technology will attempt to match the weight data from your Litter-Robot 4 to the corresponding cat’s profile
  • **Please note: The weight-based ID feature is not effective for cats within 0.5 lbs (~0.23 kg) of each other, as it relies on significant weight differences for accurate identification. Also in this release:
  • Language enhancements: We've fine-tuned our translations for Dutch, French, German, Italian, Japanese, Polish, Romanian, Russian, Spanish, and Ukrainian to ensure a seamless user experience for our global community.
  • Improved QR scanner: We've optimized the performance of our QR scanner, resolving some issues that made scanning slow on some devices.

  Thanks for using Whisker!

• Version ending in 1.5.0 - 27 June 2023

  Hello, pet parents! In this update we:

  • Added autofill support for email
  • Fixed one issue where notification settings fail to display
  • Fixed other minor bugs and performance issues

  Thanks for using Whisker!

• Version ending in 1.4.3 - 30 May 2023

  Hello, pet parents! This update includes:

  • Minor bug fixes and performance improvements

  Thanks for using Whisker!

• Version ending in 1.4.1 - 18 April 2023

  Introducing Pets:

  • Tailored insights for each member of your fur family
  • View litter, waste drawer, and food levels to ensure your pets well-being
  • Real Time Stats
  • Monitor activity for patterns and irregularities

• Version ending in 1.3.9 - 16 March 2023

  • Updated Controls and History screen for Litter-Robot 3, Litter-Robot 4, and Feeder-Robot -Updated Meal Scheduling screens for Feeder-Robot
  • New carpet warning for Litter-Robot 4 during onboarding
  • New loading screens
  • Fix for UTC time conversion after DST part 2

• Version ending in 1.3.8 - 15 March 2023

  • Updated Controls and History screen for Litter-Robot 3, Litter-Robot 4, and Feeder-Robot
  • Updated Meal Scheduling screens for Feeder-Robot
  • New carpet warning for Litter-Robot 4 during onboarding
  • New loading screens
  • Fix for UTC time conversion after DST

• Version ending in 1.3.7 - 13 March 2023

  • Updated Controls and Settings screens for Litter-Robot 3, Litter-Robot 4, and Feeder-Robot
  • Updated Meal Scheduling screens for Feeder-Robot
  • New carpet warning for Litter-Robot 4 during onboarding
  • New loading screens
  • Bug fixes

• Version ending in 1.3.6 - 9 February 2023

  • Smart Notifications for Litter-Robot 3 and Feeder-Robot
  • Screen adjusted zoom view
  • History download imperial and metric data correction
  • EU font fix
  • UI updates

• Version ending in 1.3.5 - 19 December 2022

  • Fixed scientific notation display if average cycle count is over 10
  • Set English as default language if a matching language is not found

• Version ending in 1.3.4 - 14 December 2022

  • LR4 Smart Notifications: tap to open on robot and see details
  • LR4 Panel Brightness (located in lighting)

  Updated:
  • LR3 Reset Gauge: moved back to controls page
  • Feeder MAC address display during onboarding

• Version ending in 1.3.3 - 3 December 2022

  • LR4: bluetooth onboarding fix

• Version ending in 1.3.2 - 2 December 2022

  • LR4: bluetooth onboarding fix
  • New User Interface (1.3.1)

• Version ending in 1.3.1 - 29 November 2022

  New!
  • Visual representations of robots
  • Litter-Robot control panels
  • Illustrations and popups

  Also:
  • Various bug fixes
  • Performance improvements

• Version ending in 1.2.5 - 21 October 2022

  • Minor bug fix update.
  • LR4 Cat Detect status display
  • Feeder-Robot history portion display

• Version ending in 1.2.4 - 7 October 2022

  • LR4 globe nightlight brightness setting
  • Add - motion detected in waste drawer status
  • Add - clean laser notification

• Version ending in 1.2.3 - 13 October 2022

  Pre 2018 LR3C fixes:

  Pre 2018 LR3C fixes:
  • Power off slider bug (would show on position after leaving control screen)
  • Cycle delay page loads faster

  Feeder Robot:
  • Fixed Meal fed icon indicator logic
  • Other bug fixes

• Version ending in 1.2.2 - 21 June 2022

  Fixes:
  • Feeder History portion amounts
  • Feeder History display glitch when scrolling
  • LR3 Improved gauge reset text
  • LR4 Clump Delay page automatically closes on save complete

• Version ending in 1.2.1 - 17 June 2022

  A fresh new Whisker app experience — PLUS Litter-Robot 4!
  Other exciting updates:
  • Drag to reorder your robots (tap and hold)
  • Pull down to refresh your dashboard
  • Miscellaneous bug fixes

• Version ending in 1.1.1 - 31 January 2022

  Welcome to our updated UI and brand: the Whisker app (formerly AutoPets Connect). With our rebrand from AutoPets to Whisker, the app allows you to monitor and control your robot as before – now with a modernized design and more intuitive interface.

To ensure that Litter-Robot customers always enjoy the latest features and improvements, we will now automatically update the firmware on your robots as soon as a new release becomes available. For additional details, please refer to our Terms and Conditions.

Firmware Update Instructions

• 25 March 2026

  Robot Firmware Version 5.9.1
  • WasteID™ improvements
  • Bug fixes

  Connectivity (Whisker Edge) Version 1.5.31
  • Bug fixes

  Camera Firmware Version 1.2.2-1233.2
  • Bug fixes

• 9 February 2026

  Connectivity (Whisker Edge) Version 1.5.26
  • Bug fixes

• 5 February 2026

  Robot Firmware Version 5.8.4
  • Bug fixes related to error reporting (Scale taring and motor fault)

  Connectivity (Whisker Edge) Version 1.5.24
  • Bug fixes

• 19 December 2025

  Robot Firmware Version 5.7.5
  • Bug fixes related to waste weights

  Connectivity (Whisker Edge) Version 1.5.22
  • Bug fixes related to connectivity errors and “WiFi Chip Fault”

  Camera Firmware Version 1.2.2-1233
  • Bug fixes

  AI Firmware Version 0.0.43
  • Bug fixes

• 12 December 2025

  Connectivity (Whisker Edge) Version 1.5.20
  • Bug fixes

• 2 December 2025

  Robot Firmware Version 5.7.4
  • The latest update introduces WasteID™, a new capability that helps your Litter-Robot distinguish between #1 (urine) and #2 (feces) for more targeted odor control and advanced routine monitoring. This firmware update will begin rolling out on December 2nd. Afterward, WasteID™ data will appear in the Whisker app in stages, so availability may vary by user. WasteID™ is still learning, its accuracy may vary, but it will continue to improve as more data is collected.

  Connectivity (Whisker Edge) Version 1.5.16
  • Bug fixes

• 17 November 2025

  Robot Firmware Version 5.6.4
  • Short visit handling improvements

  Connectivity (Whisker Edge) Version 1.5.15
  • Bug fixes

  Camera Firmware Version 1.2.2-1231
  • Bug fixes

  AI Firmware Version 0.0.41
  • Bug fixes

• 25 March 2026

  Robot Firmware Version: 5.9.1
  • WasteID™ improvements
  • Bug fixes

  Connectivity (ESP Firmware) Version 2.5.11
  • Bug fixes

• 5 February 2026

  Robot Firmware Version 5.8.4
  • Bug fixes related to error reporting (Scale taring and motor fault)

  Connectivity (ESP Firmware) Version 2.5.9
  • Bug fixes

• 19 December 2025

  Robot Firmware Version 5.7.5
  • Bug fixes related to waste weights

  Connectivity (ESP Firmware) Version 2.5.8
  • Bug fixes

• 2 December 2025

  Robot Firmware Version 5.7.4
  • The latest update introduces WasteID™, a new capability that helps your Litter-Robot distinguish between #1 (urine) and #2 (feces) for more targeted odor control and advanced routine monitoring. This firmware update will begin rolling out on December 2nd. Afterward, WasteID™ data will appear in the Whisker app in stages, so availability may vary by user. WasteID™ is still learning, its accuracy may vary, but it will continue to improve as more data is collected.

  Connectivity (ESP Firmware) Version 2.5.6
  • Bug fixes

• 17 November 2025

  Robot Firmware Version 5.6.4
  • Short visit handling improvements

  Connectivity (ESP Firmware) Version 2.5.4
  • Bug fixes and improved error handling

• Robot Firmware Version 138.0000.438 - 24 March 2026

  • There are no changes to robot features or performance in this release. Devices running firmware version 137.0000.438 do not require an update.

• Robot Firmware Version 137.0000.438- 27 February 2026

  • Bug fixes

• Robot Firmware Version 1175.5021.294 - 26 February 2026

  • There are no changes to robot features or performance in this release. Devices running firmware version 1175.5021.293 do not require an update.

• Robot Firmware Version 1175.5021.293 - 12 September 2025

  • Visit Duration Time for additional robot data
  • Perfect Cycle (8 mins) selection through the control panel for Purina Tidy Cats Designed for Litter-Robot

• Robot Firmware Version 1175.5021.292 - 8 July 2024

  • Support for the LitterHopper accessory.
  • Robot no longer automatically cycles on power-up.
  • Adjusted the scale thresholds for improved cat detection.
  • Reduced the occurrence of 'Excess Weight Detected' fault (blue with partial yellow flashing light).
  • Scale tare frequency increased to account for when the drawer is emptied and the reset button isn't pressed.
  • Ability for customers to calibrate optimal litter level.

• Robot Firmware Version 1175.5021.290 - 3 April 2024

  • Small bug fixed and enhancements

• Robot Firmware Version 1175.5021.289 - 28 February 2024

  • SmartScale® accuracy improvements

• Robot Firmware Version 1175.5021.288 (limited release)- 16 January 2024

  • Note: This update includes FW PIC 2.87 & ESP 1.1.73
  • Introduces an exciting update that will improve the sensing of when your waste drawer is full. This is expected to improve the accuracy of drawer level measurements and increase the amount of waste you can accumulate in your drawer. In order to enable this new algorithm, you will need to take a few minutes to recalibrate your Litter-Robot 4; this shouldn’t take more than 5 minutes of your time. Instructions for recalibration are here: LINK
  • Enhanced detection.
  • SmartScale accuracy improvements.
  • Improved WiFi connectivity.
  • Changed robot firmware numbering system to consolidate Connectivity FW, Cat Sensor FW, and Main Robot Control FW into one release.

• Robot Firmware Version 1173.5011.287 (limited release)- 5 December 2023

  • Note: This update includes FW PIC 2.87 & ESP 1.1.73
  • Introduces an exciting update that will improve the sensing of when your waste drawer is full. This is expected to improve the accuracy of drawer level measurements and increase the amount of waste you can accumulate in your drawer. In order to enable this new algorithm, you will need to take a few minutes to recalibrate your Litter-Robot 4; this shouldn’t take more than 5 minutes of your time. Instructions for recalibration are here: LINK
  • Enhanced detection.
  • SmartScale accuracy improvements.
  • Improved WiFi connectivity.
  • Changed robot firmware numbering system to consolidate Connectivity FW, Cat Sensor FW, and Main Robot Control FW into one release.

• Main Robot Control (PIC Firmware) Version ending in 2.86 - 5 October 2023

  • Introduces an exciting update that will improve the sensing of when your waste drawer is full. This is expected to improve the accuracy of drawer level measurements and increase the amount of waste you can accumulate in your drawer. In order to enable this new algorithm, you will need to take a few minutes to recalibrate your Litter-Robot 4; this shouldn’t take more than 5 minutes of your time. Instructions for recalibration are here.
  • This firmware version was a limited release to only a subset of customers.

• Main Robot Control (PIC Firmware) Version ending in 2.85 - 26 July 2023

  • Provides the necessary updates to the Litter-Robot 4 to support the upcoming SmartScale feature. The SmartScale feature should be available to all Litter-Robot 4 users by mid-August

• Main Robot Control (PIC Firmware) Version ending in 2.84 - 13 June 2023

  • Improved the immunity of cat detection to cat hair and dust.
  • Enhanced logic to eliminate instances where the globe cycle is interrupted.
  • Added logic for automatic recovery of cycle interruptions.
  • This image shows what your Litter-Robot 4 looked like before the 2.84 firmware update and after.

• Cat Sensor (TOF Firmware) Version 4.2.5 - 6 May 2022

  • Improvements to Wi-fi updates (Make sure your Connectivity Software is up to date for this to work)

• Connectivity (ESP Firmware) Version 1.1.66 - 14 February 2023

  • Fixes issue where updates were not going through

• Cat Sensor (TOF Firmware) Version 5.1.1 - 2 February 2023

  • Enables in unit calibration of cat sensors
  • Introduces a new indicator that lets you know when your drawer is full (Make sure your Operational Software is up to date for this to work)

• Main Robot Control (PIC Firmware) Version ending in 2.82 - 27 January 2023

  • Waste drawer level reporting has been improved
  • Added the ability for customers to recalibrate their lasers if their waste drawer indicator isn't working properly

• Connectivity (ESP Firmware) Version 1.1.65 - 16 January 2023

  • Fixes issue where updates were not going through

• Main Robot Control (PIC Firmware) Version ending in 2.81 - 06 January 2023

  • Improves the reaction time of robots after a cycle is interrupted

• 25 March 2026

  Robot Firmware Version 4.3.0
  • Waste level is now represented using five simplified levels instead of a percentage on the robot LCD

  Connectivity (ESP Firmware) Version 2.5.11
  • Bug fixes

• 5 February 2026

  Robot Firmware Version 4.2.0
  • Improved accuracy of waste drawer level reporting
  • Bug fixes

  Connectivity (ESP Firmware) Version 2.5.8
  • Bug fixes

• 19 December 2025

  Connectivity (ESP Firmware) Version 2.5.7
  • SmartScale® and weight-based cat identification will be available for free in the Whisker App for all Litter-Robot EVO users. This feature uses weight-sensor technology to track individual cats and provide insights into their routine over time.
  • Bug fixes related to the “Reset Waste” button within the Controls tab in the Whisker app.

• 17 November 2025

  Robot Firmware Version 4.1.1
  • Bug fixes and improved error handling

  Connectivity (ESP Firmware) Version 2.5.4
  • Bug fixes and improved error handling