1. Solved the problem that the "Show icon and notifications" status of the tray icon could not be saved in Windows 7.
2. New feature: If the last opened file has been renamed or deleted, the last several opened files will be provided for you to select from when the program launches.
3. Fixed the bug that appeared when the same data file was opened in computers with different number format settings.
4. Fixed some bugs that appeared when the program ran continuously for many days.
5. Enhancement on recurring event reminders: Each occurrence of a recurring event can now be properly reminded.
6. Bug fix: Fixed the bug that when the reminder of one occurrence of a recurring task was dismissed, this recurring task could no longer be reminded.
7. Other improvements are made and bugs are fixed.

1. Bug fix: the software sometimes can not minimize to the system tray in Windows 7.
2. Added languages: Korean and French (Canadian).
3. Other improvements are made and bugs are fixed.

1. Added the feature of Paste Special.
2. Improved the installation package (it will detect whether the program is running before start installing; added multilingual user interface).
3. Other improvements are made and bugs are fixed.

1. Added languages: Dutch and Indonesian.
2. Help file improved.
3. Other improvements are made and bugs are fixed.

1. Added languages: Hungarian and Thai.
2. Added the feature of compacting data file.
3. Added the option of 'Allow multiple instances'.
4. Other improvements are made and bugs are fixed.

1. The interface is more compatible with Windows 7 standards.
2. In the Calendar module, the rows and columns displayed in Date Navigator are saved.
3. Bug fix: In rare cases (such as when text is entered into an embedded table), contents modified in comments could not be saved correctly.
4. Fixed a bug in version 1.55: some events and tasks cannot be snoozed.
5. Fixed a bug in version 1.55: an error will be reported if the program hasn't exited when the computer shuts down.
6. Other improvements are made and bugs are fixed.

1. Added function of directly copying html page content to comments. Save pictures, hyper-links, tables, lists, and font style (bold, underline). etc.
2. Added support for PNG format images.
3. Improved support for GIF format images.
4. Added the option to backup the data file automatically.
5. Bug fix: Can't dismiss some regular events successfully.
6. Other improvements are made and bugs are fixed.

1. Added languages: Farsi, Italian and Polish.
2. Fully compatible with Windows 7 and Vista operating systems.
3. Added the feature of filtering events by label type to the calendar views.
4. Added the option of displaying start date or due date in Today module's task list.
5. Added the Task Priority column to Today module's task list.
6. Added the options of whether to remind an event and before how long to remind it by default.
7. Improved the software's display in low screen resolution.
8. Fixed the bug that some special comma delimited files could not be imported.
9. Other improvements are made and bugs are fixed.

1. Added languages: Bulgarian, Swedish.
2. Other improvements are made and bugs are fixed.

1. Added languages: Czech, Finnish.
2. Other improvements are made and bugs are fixed.

1. Added a custom navigation panel: you can set the order of icons in the panel or hide some icons.
2. Added languages: German, Portuguese (Brazilian), Russian.
3. Other improvements are made and bugs are fixed.

1. Import and export enhancement: Now comments can be imported and exported.
2. Import and export enhancement: Now the product can import and export whether events/tasks can be reminded and the corresponding reminder times.
3. Added the buttons "Previous Month" and "Next Month" on the toolbar in the Calendar module.
4. Added language: French.
5. Other improvements are made and bugs are fixed.

1. Added language: Spanish.

1. Added the feature of Spell Checker. (*)
2. Added the feature of selecting multiple records in the record list (such as selecting multiple records and then delete them together).
3. Added the feature of selecting multiple attachments in the attachment list and operate on them together.
4. Added languages: Traditional Chinese, Norwegian and Croatian.
5. Other improvements are made and bugs are fixed.

* Applies to the Professional Edition only

1. Solved the problem that the display locations of the main menu's drop-down submenus were incorrect in a multiple-monitor environment.
2. More complete support for the "First Day of Week" option.
3. Added the "Expand All" and "Collapse All" functions to the task panel of Today view.
4. Added the "Expand All" and "Collapse All" functions to the TaskPad of Calendar view.
5. Added the "Expand All" and "Collapse All" functions to the task display list.
6. Added the "New Subgroup" command to the pop-up menu of the group list.
7. Other improvements are made and bugs are fixed.

1. Bug fix: Tasks could not be properly marked as "completed" in the Today view.
2. Added options to confirm actions (such as when a record is deleted, user confirmation is required).
3. Added support for right-to-left reading order in the comment editor.
4. Bug fix: If Today view is displayed in the main interface, when a new recurring event is added, the event list in Today view may not be able to update properly.

1. Added the feature of global search: it allows you to search in information of various types.
2. The main interface can now be switched between the Edit mode and the Browse mode.
3. New feature: events and tasks can be displayed at the same time in the Calendar view.
4. Added the functions Copy and Paste to the calendar views.
5. New feature: data is saved automatically at minimization.
6. New feature: Duration is added to the Edit Event window.
7. Added the functions Expand All and Collapse All to the group list.
8. The "Save As" operation is now supported for attachments.
9. Damaged data files can be repaired automatically.
10. Other improvements are made and bugs are fixed.

1. The program can automatically detect whether a file opened is on a USB drive. If the answer is "Yes", it will take optimization measures to reduce write operations to files on the USB drive to improve performance.
2. Enhanced the performance of the Portable version on USB drives.
3. New feature: When a group tree list is displayed, the nodes for the first-level groups are now allowed to collapse and expand.
4. Bug fix: Sometimes the custom configuration (e.g. sorting) for the Task list view cannot be properly saved.
5. Bug fix: Efficient Calendar 1.20 may not be able to restore the data from password-protected backup files saved by a previous version.
6. Bug fix: For a recurring task set to remind in advance, after certain task is complete, the reminder times of following tasks may be wrong.
7. Other improvements are made and bugs are fixed.

1. Modified data file format, and enhanced data security and stability.
2. The feature of Find and Replace was added to comment editor.
3. Enhanced compatibility with systems with different date formats.
4. Added the feature of saving default backup folder.
5. Added the feature of saving the last entered event location, so it is available to select in the future.
6. Other improvements are made and bugs are fixed.