5 - Added the ability to minimize the left side panel for a more customizable interface.
9 - Fixed issue with deleted occurrence in an event serie
15 - Adjusted font sizes for improved readability across the platform.
21 - Implemented general UI updates for a more streamlined user experience.
22 - Enhanced functionality for managing recurring events.
24 ## Release 5.0.21 — Feb 14th, 2024
28 - Minor accessibility improvements
30 ## Release 5.0.20 — Jan 31st, 2024
34 - Minor UX improvements for edition/deletion of holidays calendars
35 - Improved the behavior of the time input when time is entered manually
39 - Fixed issues that prevented importing events with time zone Australia/Hobart
41 ## Release 5.0.19 — Jan 10th, 2024
45 - Small improvements in the import flow
47 ## Release 5.0.18 — Dec 18th, 2023
51 - An event organizer now has the ability to cancel a single event occurrence of a recurring event with participants
55 - Fixed wrong event duration that was displayed for multiple-day events ending on midnight
59 - Minor accessibility improvements
61 ## Release 5.0.17 — Nov 21st, 2023
65 - Fixed an issue where event invitations from the Deutsche Bahn would have the wrong dates due to an invalid format in the ICS file
66 - Updates to your calendar events are now visible in the search results immediately
70 - Fixed an issue where certain events imported from the Android Proton Calendar app would not be readable
72 ## Release 5.0.16 — Nov 1st, 2023
76 - You can now reply to external invitations that were forwarded to you
80 - Implemented a mechanism to auto-reload events that we fail to load when there are network issues
84 - Stability fixes for some rare conditions that would cause events to not be rendered properly
86 ## Release 5.0.15 — Sep 26, 2023
90 - You can now securely search your calendar events (beta users only)
94 - Improved the performance when loading the app and exporting calendars
98 - Fixed incorrect display of event ending on midnight created in time zones with negative offset
100 ## Release 5.0.14 — Aug 23, 2023
104 - The settings button has moved from the top right to the sidebar on the right-hand side
105 - Improved the app layout and increased the space for calendar events
107 ## Release 5.0.13 — Aug 9, 2023
111 - Added the ability to easily see the addresses of events' participants, copy them and create or view linked contacts
115 - Small fixes when sending or replying to invitations
117 ## Release 5.0.12 — July 12, 2023
121 - Public holidays are here!
125 - Added app languages: Finnish, Hindi and Swedish
133 - Our Terms and Conditions have been updated https://proton.me/legal/terms
135 ## Release 5.0.11 — June 14, 2023
139 - Optimized events loading at app startup
140 - Improved sidebar spacing and app switcher design
141 - Added support for invitations with an empty organiser field in the ICS
142 - Allowed importing events with alarm components with invalid duration
146 - Refactored logic for updating favicon, which stopped working for Chromium-based browsers
147 - Added RFC-mandatory fields for alarms when exporting calendar
149 ## Release: 5.0.10 — April 12, 2023
153 - You can now share your calendar with family and friends that own a Proton account with view or editing permissions. Sharing a calendar with Proton users enables real-time updates of the calendar modifications
157 - Updated time zone offsets to the IANA time zone database 2022g
158 - Updated spelling of Europe/Kiev time zone to Europe/Kyiv
159 - Enabled the possibility to interact with the contacts in the side panel while creating an event in your calendar
161 ## Release: 5.0.9 — March 8, 2023
165 - Lifted restrictions for the number of calendars you can create by category. Create up to 3 calendars as a free user and 25 if you have a Mail subscription
169 - Proactively fix sequence properties outside the valid value range (established on the RFC 5545 standard) when importing and exporting events
171 ## Release: 5.0.8 — February 15, 2023
175 - Increased support for importing ICS files with dates that do not follow the RFC 5545 standard (including dates missing seconds and ISO-formatted dates)
176 - Redesigned of app notifications
177 - Minor UI improvements
179 ## Release: 5.0.7 — January 25, 2023
183 - Added a reload mechanism for events that failed to be decrypted because of network issues
184 - Improved notification update system for all calendar types
188 - Updated some time zones conversion to canonical time zones
190 ## Release: 5.0.6 — December 14, 2022
194 - Manage your contacts from the new side panel
198 - Better display on mobile view
202 - Fixed issue where some white spaces in event details could be trimmed when saving
204 ## Release: 5.0.5 — October 5, 2022
208 - Minor UI and UX improvements
210 ## Release: 5.0.4 — August 24, 2022
214 - Added invitations from the inbox to the calendar and mark as pending
218 - Reorganisation of the calendar settings
219 - Improved the performance and security of crypto operations
220 - Use account primary time zone when importing events without time zone (floating time)
222 ## Release: 5.0.3 — July 20, 2022
226 - Draggable popover on event creation
227 - Reminders for events in subscribed calendars
231 - Validate calendar subscription links as soon as the URL is entered
232 - Added possibility to disable the setting for time zone auto-detection directly from the pop-up
236 - Fixed issue where the app would not load because of calendars with a broken setup
238 ## Release: 5.0.2 — June 22, 2022
242 - Made ICS parsing more robust
243 - Made displayed GMT offset more representative of the date range in view
245 # Introducing Proton's refreshed look.
247 ## Release: 5.0.0 — May 25, 2022
249 As we continue to make privacy accessible to everyone, we've updated our apps to provide you with an even better experience with our services.
251 Proton - Privacy by default.
253 ## Release: 4.0.9 — Mar 30, 2022
257 - Improved the visibility of today indicator
258 - Improved calendar creation
262 - Improved support for invalid ICS formats that other providers sometimes use (Office Holidays Ltd.)
263 - Fixed wrong conversion of some localized time zones that Microsoft Exchange 2010 uses
265 ## Release: 4.0.8 — Feb 9, 2022
269 - Duplicate event to quickly create the same event on another date
273 - Updated modals designs
274 - Reactivate calendar keys automatically when opening an invitation in mail
278 - Fixed time zone aliases conversion
280 ## Release: 4.0.7 — Jan 13, 2022
284 - Drag and drop an ICS file into calendar view to import it
285 - Select language in which event invites and RSVPs are sent
286 - Allow organiser to add participants replying to forwarded invitations directly from Mail
290 - Improved the browser print rendering of calendar
291 - Differentiate invitation emails with calendar icons in the mailbox
292 - Extended supported time zone formats (Bluejeans, Mozilla and others using globally defined time zone registries)
293 - Support certain ICS formats that would result in the error "File does not have the right format" when trying to import them
294 - Better handling of large ICS files import
295 - Minor UI and accessibility improvements
299 - Do not display Calendar invitation information header for bounced emails
301 ## Release: 4.0.6 — Dec 1, 2021
305 - Enable email notifications option for events and calendar default settings
309 - Added shortcuts in the sidebar to import and subscribe to calendars
310 - Support ICS files with no version
311 - Fit more text in event cells for events with long duration
312 - Reduced width of event popover to block less space in the UI
313 - Other minor UI and accessibility improvements
315 ## Release: 4.0.5 — November 3, 2021
319 - Allow importing invitations
320 - Do not leak event title in the email subject when replying to invitations from Calendar
321 - Fixed "not synced" status that could be displayed erroneously for subscribed calendars under some circumstances
322 - Support events with DURATION field via import
323 - Improved support for non-standard replies sent by Yahoo Calendar
324 - Updated favicon without reloading the tab when day changes
325 - Minor UI and accessibility improvements
329 - Fixed faulty keyboard navigation in time zone selector
330 - Allow adding invitations with unsupported email addresses to Calendar when replying to them
331 - Fixed issue where editing multiple times a recurring event with the "this and following" option would result in an error
333 ## Release: 4.0.4 — September 22, 2021
337 - Added participants from reduced event creation form
338 - Redesigned of event popover
342 - Ask for confirmation when opening a link in an event if setting is on for emails
343 - Answer invitation from alias email address when invited
345 ## Release: 4.0.3 — August 25, 2021
349 - Subscribe to external calendar via link
353 - Inverted day name and date in calendar view
357 - Redirect Myanmar time zone to Indian/Cocos
358 - Handle case where an email address is disabled under one user and active under another in the same organisation
359 - Extended support to recognize invitations formatted with floating times
361 ## Release: 4.0.2 — July 28, 2021
365 - Added shortcuts for calendar creation, edition and sharing from the calendar sidebar
366 - Allow import of events with missing UID
367 - Design improvements in mini calendar
368 - Made the calendar linked address more obvious in the settings list of calendars
369 - Added calendar color in the calendar select when creating or editing an event
373 - Trigger browser notifications at the right time after computer sleep mode
374 - Various small bug fixes
376 ## Release: 4.0.1 — June 30, 2021
380 - Enable the search of time zones
384 - Minor UI improvements
388 - Fixed the display of sent invitations with specific security settings that would show as encrypted in the sent folder
390 # Proton Calendar for web is live!
392 ## Release: 4.0.0 — June 8, 2021
394 Proton Calendar for web is now out of beta and available to everyone. Integrated with your ProtonMail account, our fully encrypted calendar lets you easily stay on top of your schedule while keeping your data secure.
398 - **Invite anyone**: Send calendar invitations to everyone, including those not using ProtonMail.
399 - **Integrate with ProtonMail**: Accept invitations and add events to Calendar from your Proton inbox.
400 - **Import from anywhere**: Import your calendars from other service providers.
401 - **Manage invitations**: Accept or reject invitations directly from Calendar.
402 - **Share with anyone**: Share your calendar via link to non-Proton Calendar users.
403 - **Make it yours**: Customize your calendar with new themes and configure the layout so it works for your needs.
404 - **Access it all**: Quickly select and switch between different Proton services (Calendar, Mail, Drive, VPN).
405 - **Stay signed in**: Stay signed in without losing your user session, even after closing your browser.
407 A big thank you to all our beta users! Your invaluable feedback makes it possible for us to go live. Please continue to let us know what you like about Proton Calendar and how we can improve it to make it the best and most secure calendar service available. You can also report an issue or request a feature under “Help” in the top menu bar.