Release Notes for Synology Calendar

Important Note

1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

What's New

1. Supports RESTful API, allowing developers to manage calendar events within business systems. For details, refer to the Synology Office Suite API Documentation.

Fixed Issues

1. Fixed an issue where occasional conflicts occurred with the CalDAV port.
2. Fixed an issue where reminders might not work properly.
3. Fixed an issue where recurring events might not repeat on the intended date.
4. Minor bug fixes.

Important Note

1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

1. Fixed an issue where calendar imports failed due to missing event end dates or durations.
2. Fixed an issue where location information couldn't be imported for events created from Synology MailPlus emails.
3. Fixed an issue where DAVx5 couldn't synchronize with Synology Calendar when using the CalDAV protocol.
4. Fixed an issue where users still received Calendar notifications after turning them off.
5. Minor bug fixes.

Important Note

1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

1. Fixed an issue where Synology Calendar couldn't sync with certain CalDAV clients.
2. Increased the maximum description length for Calendar events to 8,192 characters.
3. Fixed an issue where Synology MailPlus and Synology Chat couldn't create Calendar tasks and events.
4. Minor bug fixes.

Important Note

1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.
2. To prevent any issues, we suggest reconnecting to your CalDAV clients after updating to Calendar 2.5.0.

What's New

1. Updated PHP from version 7.3 to 8.2.
2. Supports importing email addresses from Synology Contacts for receiving event invitations with iCalendar (.ics) data. (Learn more)
3. Enhanced CalDAV client meeting invitation emails and Calendar notifications.
4. Updated timezone database to version 2023c.

Fixed Issues

1. Fixed an issue where email invitations were not displayed properly.
2. Adjusted the maximum description length to 2,048 characters in the Calendar settings.
3. Fixed an issue where the CalDAV client couldn't connect to Calendar with the TLS/SSL profile level set to modern compatibility.
4. Updated the calendar list by replacing symbols with checkboxes.
5. Adjusted the default order of the event participant list.
6. Minor bug fixes.

Compatibility & Installation

1. Synology Calendar 2.4.6-20944 requires DSM 7.2 and above.

Important Note

1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

1. Fixed an issue where the time zone was displayed incorrectly.
2. Fixed an issue where multi-day events might not be properly displayed in the "Week" view.
3. Fixed an issue where the event editor couldn't be closed when users uploaded an attachment with % in file name.
4. Minor bug fixes.

Important Note

1. This version is replaced by Calendar 2.4.6-10942 to fix an issue where the package could not be launched.

Important Note

1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

1. Enhanced search performance when there are a large number of repetitive events.
2. Fixed an issue where users could not import from Google Calendar.
3. Fixed security vulnerabilities (CVE-2022-24771, CVE-2022-2472, and CVE-2022-24773).
4. Fixed a security issue. (Synology-SA-22:07)
5. Minor bug fixes.

Important Note

1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

1. Enhanced search performance when there are a large number of repetitive events.
2. Fixed an issue where users could not import from Google Calendar.
3. Fixed security vulnerabilities (CVE-2022-24771, CVE-2022-2472, and CVE-2022-24773).
4. Fixed a security issue. (Synology-SA-22:07)
5. Minor bug fixes.

Important Note

1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

1. Fixed an issue where the "Search" and "Jump to" functions did not work in a public shared calendar.
2. Fixed an issue where email notifications displayed the start date of a repeating event when users edited any occurrence of that event.

Important Note

1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.
2. For security reasons, port 38008 and 38443 will be closed starting from this version. Please use 5000 and 5001 for CalDAV instead.

What's New

1. Supports converting the event location into a hyperlink if the user enters an URL.

Fixed Issues

1. Fixed a security vulnerability (CVE-2021-31597).
2. Fixed an issue where the event time may be incorrect in Outlook when event invitations were sent via Synology Calendar.
3. Fixed an issue where all-day tasks created in Synology Calendar might be shown on the wrong date if the task creator was located in certain time zones.
4. Fixed an issue where shared calendars were not visible to people that the calendars have been shared with when the FQDN in the LDAP account system contains the character "-".
5. Fixed an issue where signing in to Synology Calendar via CalDAV would fail if the user's username was all numerical values that started with "0".
6. Fixed an issue where signing in to Synology Calendar would fail when the user changed their username to one that was previously deleted.
7. Fixed an issue where calendars shared by deleted users were still visible to other users.
8. Minor bug fixes.

Important Note

1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.
2. For security reasons, port 38008 and 38443 will be closed starting from this version. Please use 5000 and 5001 for CalDAV instead.

What's New

1. Supports converting the event location into a hyperlink if the user enters an URL.

Fixed Issues

1. Fixed a security vulnerability (CVE-2021-31597).
2. Fixed an issue where the event time may be incorrect in Outlook when event invitations were sent via Synology Calendar.
3. Fixed an issue where all-day tasks created in Synology Calendar might be shown on the wrong date if the task creator was located in certain time zones.
4. Fixed an issue where shared calendars were not visible to people that the calendars have been shared with when the FQDN in the LDAP account system contains the character "-".
5. Fixed an issue where signing in to Synology Calendar via CalDAV would fail if the user's username was all numerical values that started with "0".
6. Fixed an issue where signing in to Synology Calendar would fail when the user changed their username to one that was previously deleted.
7. Fixed an issue where calendars shared by deleted users were still visible to other users.
8. Minor bug fixes.

Important Note

1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

1. Fixed an issue where users syncing Thunderbird, macOS, or other clients via default ports might fail if they had edited Synology Calendar Login Portal settings.
2. Minor bug fixes.

Compatibility and Installation

1. Updated to be compatible with DSM 7.0.

Important Note

1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Fixed Issues

1. Fixed an issue where the incorrect time is displayed on the first day of Daylight Saving Time.
2. Fixed an issue where users cannot use Synology Calendar when importing incorrectly formatted ICS files.
3. Fixed an issue where Hyper Backup cannot restore Synology Calendar 2.4.0 backup files. We recommend performing a Hyper Backup backup task after upgrading to Calendar 2.4.1 to obtain corrected backup files.
4. Minor bug fixes.

Important Note

1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.
2. The update will set the default map source for Synology Calendar as "None (plain text)". This will not affect existing events. If you wish to continue using a third-party service to open maps, go to "Settings" > "General" and change the "Map source for event location".

Fixed Issues

1. Fixed multiple security vulnerabilities. (Synology-SA-21:12)
2. Fixed an issue where users might receive multiple alerts for repeated events.
3. Fixed an issue where users might still receive notifications even though notification settings have been turned off.
4. Fixed an issue where users might not be able to import ICS files to shared calendars.
5. Fixed an issue where events with custom time zones might not be displayed when they are imported via ICS files.
6. Fixed an issue where new users might not be able to create non-all-day events when the time zone has been modified in Control Panel.
7. Fixed an issue where users might not be able to delete newly created events when syncing Synology Calendar via the Outlook CalDav Synchronizer plugin.
8. Fixed an issue where syncing Synology Calendar on macOS might fail.
9. Fixed an issue where users might not be able to invite other Active Directory users via eM Client.
10. Fixed an issue where event invitees might not be able to respond to invitations sent via iOS or eM Client.
11. Minor bug fixes.

Important Note

1. The update is expected to be available in all regions within the next few days. The actual time of release may vary slightly depending on the region.

Compatibility & Installation

1. Updated to Node.js v12.

What's New

1. Supports displaying creator information in event details.
2. Supports disabling cloud-based map service for event locations.

Bug fixed

1. Fixed the issue where importing calendars from Google Calendar might fail.
2. Fixed multiple security vulnerabilities.
3. Fixed a security vulnerability regarding DAViCal (CVE-2019-18345).

1. Fixed a security vulnerability (Synology-SA-19:21).

1. Minor bug fixes.

1. Fixed a security vulnerability (Synology-SA-19:12).

1. Fixed a security vulnerability (Synology-SA-19:04).
2. Supports highlighting modified event information in invitation mails.
3. Supports sending notification mails only to guests removed from or newly added to the invitation list.
4. Fixed an issue where deleting events in shared calendars might fail on CalDAV clients.
5. Fixed an issue where alarm settings of tasks might not be synced to iOS devices.

1. Fixed an issue where sharing calendars with internal users might fail.

1. Fixed a security vulnerability (Synology-SA-18:54).
2. Supports copying events as new events.
3. Supports showing the display name of shared contacts from MailPlus when inviting guests.
4. Supports sending emails and notifications to invited guests when an event is deleted.
5. Fixed an issue where alerts of repeated events might not notify members correctly.
6. Fixed an issue where attaching files saved in Synology NAS might fail.
7. Fixed an issue where event descriptions might not display properly in invitation mails.
8. Minor bug fixes.

1. Fixed an issue where shared calendars might disappear after upgrading to Synology Calendar 2.2.0 on DSM 6.1.7.
2. Supports Thai user interface.
3. Added a mechanism to merge duplicated shared calendars.
4. Fixed an issue where alerts of repeat events might not work properly.

1. Fixed a security vulnerability (Synology-SA-18:16). 
2. Fixed an issue where importing events from .ics files might fail. 
3. Minor bug fixes. 

1. Fixed a security vulnerability. (Synology-SA-18:06)
2. Minor bug fixes.

1. Supports adding event color to highlight specific events.  
2. Supports sending event invitations and notifications to users via the bot on Synology Chat (Chat and Calendar need to be installed on the same Synology NAS).
3. Fixed an issue where event time might be wrong when the time zones set in Synology Calendar and web browser are different.
4. Fixed an issue where adding accounts to CalDAV clients might fail due to the incorrect URLs provided by Synology Calendar.

1. Fixed a vulnerability regarding the access control of events.

What’s New

1. Added Task function for managing your daily to-dos.
2. Added Agenda view for easily viewing upcoming events.
3. Supports importing events directly from Google Calendar.
4. Integrates with Google Maps for locating events.
5. Supports importing events from .ics files to existing calendars.
6. Supports email notifications for upcoming events and detail modifications. 
7. Calendar events can now be searched in Synology Universal Search package. 

Improvements

1. Enhanced usability of the user interface.
2. Added more details to event notifications.

Fixed Issues

1. Fixed an issue where calendars shared to multiple groups might display repeatedly if you are also included in the groups.
2. Fixed an issue where calendars cannot be shared with other users in the same AD domain.
3. Minor bug fixes

1. Fixed an issue where multiple identical calendars will show when you share your calendar to multiple groups as a member.
2. Fixed an issue where inviting others to an event might fail.
3. Fixed an issue where replying invitation mails might fail.
4. Fixed an issue where events shared by others might disappear on your CalDAV clients after subscribing to Synology Calendar.

1. Fixed an issue where Calendar might not work after Synology NAS shuts down improperly. 

1. Enhanced the stability and accuracy of importing .ics files.
2. Fixed an issue where only all-day events would be displayed when importing .ics files from Microsoft Outlook. 
3. Fixed an issue where Windows AD users might not receive event invitation emails.
4. Fixed an issue where events applied with default alert settings might fail to be synced to mobile devices.
5. Minor bug fixes.

Compatibility and Installation

1. Synology Calendar 1.0.0 can only be installed on Synology products running DSM 6.0.2 or onward.
2. Synology Application Service, Node.js v4, and PHP 5.6 are required before installing Synology Calendar 1.0.0.
3. Supports importing calendars from Google Calendar.

What’s new

Calendar
1. View the calendar by day, week and month.
2. Hide calendars from the overview page.
3. Share calendars with DSM users and grant them the permission to edit or only view the events.
4. Share calendars with the public in read-only mode as a way of announcing schedules.
5. Receive invitations from other DSM users and reply directly.
6. Filter invitations by different participation status, including “Yes”, “Maybe”, “No” and “Awaiting”.
Event
1. Create events on all the calendars you have permission to manage.
2. Create recurring events with the repeat setting.
3. Invite DSM users and non-DSM users to the event, and view their replies on Synology Calendar.
4. Event reminder notifies you of the upcoming event before a predefined period of time.
5. Daily agenda merges all events of the day from your calendars.
6. Jump to a specified date to create an event on the fly.
7. Advanced Search allows you to quickly find events by keywords, calendars or dates.
8. Notification Center allows you to view all event reminders at a glance.
Settings
1. Customize date format, time format, week start day and time zone.
2. Calendars can be shown or hidden according to your preference.
3. Enable email or browser notifications.
Integration
1. Supports synchronization with CalDAV clients that are compatible with the CalDAV protocol, such as Thunderbird, macOS, and iOS.
2. Supports Hyper Backup to back up and restore calendars, events and settings.
3. Supports Windows AD and LDAP Server account systems.

Limitation & Known Issues

1. My Calendar cannot be shared with other users.