Added a function of two-dimensional vector graph.
Enabled to save data and properties as an archive file.
Added a function drawing an image in the background of a window.
Revised the bounding box of text strings.
Changed the policy of loading a property file: a new window is not created, and properties are applied to the window directly.
Added a status bar in the window.
Fixed the following bugs.
- Application freezes or becomes unstable with some form of data.
- The StackOverflowError can occur by mouse wheel.
- With some data, Axis numbers are set to be integer improperly.
- Once canceled downloading the new version, it is failed to restart the upgrade.

Samurai Graph 0.9.1

Enabled to set the width of symbol in the legend.
Enabled to translate timing lines by mouse drag.
Modified to set the width of bars for data by axis value.
Enabled to add subscript and superscript recursively.
Revised error messages for illegal input values.
Added a function to clear the undo buffer.
Fixed following bugs in axes.
- Application freezes when the negative step value is set.
- Unable to use the exponent.
- Unable to set the frame line width.
Fixed following bugs.
- When axis scale is set to log scale, location of the objects are set incorrectly.
- Failed to read data files in which double quotation marks exist in the text string for the tick labels.
- Discarded objects are not freed from memory.

Samurai Graph 0.9.0

Added a new type of data in which the x-values are given as text strings of date.
Modified to show the confirmation dialog in closing a window or exiting the application.
Revised the GUI to select axes in the property diaog.
Modified to move figures to front or back not by mouse click but by the menu commands.
Fixed following bugs.
- Selected font is not set correctly in certain cases.
- Text strings not enclosed in double quotation marks are accepted.

Samurai Graph 0.8.0

Added a function to insert shapes into figures: rectangles, ellipses, arrows and lines.
Fixed following bugs.
- The menu item with a check-box, [Layout]-[Grid]-[Snap to Grid], is selected contrary to the situation.
- The menu items under [Layout]-[Paper Size] do not work normally.
- For data with many points, the property dialog does not work normally.
- The size of heads of error bars cannot be set correctly with the property dialog.
- Senceless words are displayed in the change logs in Java Runtime Environment 5.0.

Samurai Graph 0.7.1

Resolved the high load average problem in some platforms such as MacOS X and Linux.
Fixed a bug that it is failed to find Java Runtime Environment on installation in Windows platform.
Revised the layout of the tool bar.
Fixed incorrect name of a tool bar, from "Arrange" to "Layout".
Enabled to align figures on grid lines by mouse drag.
Enabled to add a timing line without clicking axis lines.

Samurai Graph 0.7.0

Revised the functions to set objects' properties.
- Enabled to set properties of multiple objects at the one time.
- Enabled to display the property dialog of data by double-clicking the corresponding graphic symbols in legend.
- Enabled to display the property dialog for each objects from the menu with the tree structure in the menu bar.
Revised the tool bar in the window.
- Added new buttons for print, undo, redo, cut, copy and paste.
- Enabled to set visibility of each button-groups.
- Enabled to move button-groups by mouse drag.
- Added an item for auto-zoom to the combo box displaying the magnification.
Enabled to edit all editable text both in the property dialog and by inline editing.
Modified to draw an error bar of data in the legend.

Samurai Graph 0.6.1

Fixed following bugs related to scalar XY-type multiple data.
- Unable to set properties with the property dialog.
- Failed to clip the drawn image of data when exporting or printing.
Added new types of line and symbol.

Samurai Graph 0.6.0

Associated Samurai Graph application to the property file with the file extension .sgp under Windows environment. By the double click of a property file icon, Samurai Graph is launched with a multiple data file chooser dialog. File association is created by Samurai Graph installer.
To set the file association, the multiple running of Samurai Graph application was allowed.
Added a progress bar to the splash window displayed during the start-up.
Modified the function for auto arrangement of figures. Figures are arranged along grid lines in the paper.
Revised the multiple data-file chooser dialog.
- Enabled to edit the cell for the filename of data.
- Modified to show the tooltip text for the filename of data.
Added margin around the data names in the legend.
Modified the function for the menu command, "Zoom Way Out". The suitable magnification is selected so that the pane include the paper entirely.

Samurai Graph 0.5.2

Added arrows to resize the paper by mouse drag.
Revised display of the ruler.
Fixed a bug in the method reading the property file.

Samurai Graph 0.5.1

Added a function to draw grid lines in the figure.
Revised the function exporting images.
Fixed cumulative bugs.

Samurai Graph 0.5.0

Added the print funtion.
Revised the preview dialog for exporting and printing the image.
Revised the dialog to display change logs.
Modified to use the default look and feel.
Modified to reflect the background color of the window to the exported image.
Modified to record the last recently used directory on the file choice.
Modified to set the rubbar banding by default when figures are moved by mouse drag.
Fixed cumulative bugs.

Samurai Graph 0.4.1

Fixed bugs in undo/redo function. Undo/redo of addition/deletion of figures do not work well.

Samurai Graph 0.4.0

Added functions to copy, cut, paste and duplicate the selected objects - data, symbols and figures.
Refined the about dialog.
Fixed cumulative bugs.

Samurai Graph 0.3.2

Fixed the following bugs.
- Bugs on installation of the new version of Samurai Graph by auto-upgrade.
- Error bar is not drawn correctly with axes in the log scale.
- Bounding box is drawn when exported to image files.

Samurai Graph 0.3.1

Fixed a bug that the uninstallation fails when the application is running. Modified to execute Samurai Graph when uninstaller is executed.
Forbade the multiple running of Samurai Graph. When users try to it, a new window opens in the existing process.
Fixed cumulative bugs.

Samurai Graph 0.3.0

Modified the overall properties and the usage of the property files.
- Modified to write property files in XML format, and we assigned the original file extension to them.
- Enabled to use a property file by drag and drop into the window.
- Improved the dialog to select data files to be used with a property file.
Enabled to select the objects such as figures, data, various symbols and legend, and to edit them.
- Modified to select objects by mouse click.
- Enabled to delete selected objects by hitting the delete key or by executing the menu command.
- Enabled to move selected objects by mouse drag.
The symbols and the legend are related to the axes like data objects.
Include change logs into the release file.
Enabled to use proxy connection on auto-upgrade.
Improved the features of spinners.
Improved the menu items to insert various symbols.
Changed the default location and background color of the legend.
Enabled to hide lines of significant difference symbols.
Enabled to hide the entry of data in the legend.
Fixed cumulative bugs.

Samurai Graph 0.2.0

Arranged menu entries in the menubar.
- Hid temporary entry for not implemented features.
- Added new entries for some features below:
  - Insert Symbol (label, significant difference, line-break, timing line)
  - Zooming
  - Grid Properties
  - Version upgrade
  - Change Logs
- Remapped short cut keys of major functions.
Arranged menu entries in the popup menu of some objects.
- Added property entry for all popup menus.
Added version upgrade feature.
- It can to check latest version via network at start up time. If newer version is available, information about it is displayed.
  - On Windows, it can automatically upgrade to latest version.
  - On other platforms, it can download latest version.
- Added menu entry [Help]-[Upgrade] to menubar.
- property dialog
  - Frequency setting for automatically latest version checking
  - Manually upgrade button
Other new features and changes
- Added splash window.
- Hid vector type data entry from data type selection dialog.
- Added automatically zoom out to fit a window function. It can to use by menu entry [Layout]-[Zoom]-[Auto Zoom].
- Added toggle switch of the grid line visible status. It can to switch from menu entry [Layout]-[Grid]-[Visible] or window property dialog.
- Added recovery sequence for symbol insert failure. If you fail symbol inserting, the message dialog is shown and you can continue insert operation.
- Changed symbol superposition policies. Superposition of same type symbol (label, significant difference, break-line, timing line) can to change by popup menu.
- Changed action of label popup menu showing to use of right button click of mouse on the label symbol.
- Added popup menu entry for axis and legend visible control.
- Changed show action of axis property dialog at axis invisible. It can to show by double click operation of left button of mouse on rectangle border of the figure.
- Added change logs dialog. It can to show by menubar entry [Help]-[Change Log].
Fixed cumulative bugs.

Samurai Graph 0.1.4

Fixed a bug - The location of the paper was set wrongly in the start-up of the application, and the paper was drawn at the lower position.

Samurai Graph 0.1.3

Enabled the addition of axis break symbols using the toggle button in the tool bar.
Disabled the automatic pullback of the figures to inside of the paper.
Disabled the following components when the figures do not exist:
- Buttons in the tool bar
  - The button to set the bounds of the paper using the bounding box of figures.
  - Toggle buttons to add labels, symbols of significant difference, timing lines and symbols of axis break.
- Menu items in the menu bar
  - [Layout]-[Bounding Box] ... Set the bounds of the paper using the bounding box of figures.
  - [Layout]-[Align Figures] ... Align the figures.
Enabled the scroll in the vertical direction by the mouse wheel.
Implemented the about dialog. It can be displayed by selecting the menu [Help]-[About] in the menu bar.
Fixed the following bugs occurred in the Mac OS X environment:
- As the window moves, the selected figures moves in the window pane.
- Unable to add data to the figure by drag-and-drop of data files.

Samurai Graph 1.0.1

Samurai Graph 1.0.0