Releases

1. 3.15.3

   Released September 15th, 2022

   • bugfix
     Prevents error for SMILES input having tetravalent, double-bonded phosphorous.

2. 3.15.2

   Released June 23rd, 2022

   • bugfix
     Prevents blocking window events after reading certain SMILES.

3. 3.15.1

   Released November 29th, 2020

   • feature
     Rotates molecules read as SMILES into landscape orientation.

4. 3.15.0

   Released September 17th, 2020

   • feature
     Enables reification of hydrogens attached to bicyclo ring carbons.

5. 3.14.1

   Released August 25th, 2020

   • bugfix
     Places SMILES components beside each other during layout.

6. 3.14.0

   Released August 6th, 2020

   • feature
     Introduces 'bond-density' property into stylesheet, allowing the maximum bond length to be set within an Image.

7. 3.13.6

   Released July 15th, 2020

   • bugfix
     Positions charges such that they're no longer obscured by bonds in most cases.

8. 3.13.5

   Released July 10th, 2020

   • bugfix
     Fixes overlapping layout for certain structures containing a multicyclic ring system.

9. 3.13.4

   Released July 8th, 2020

   • bugfix
     Prevents invalid virtual hydrogen assignment to radical atoms.

10. 3.13.3

    Released June 3rd, 2020

    • bugfix
      Displays unconstrained double bonds as crossed. Eliminates error from incompletely constrained double bonds.

11. 3.13.2

    Released May 26th, 2020

    • bugfix
      Whitelists F-18 as a valid isotope.

12. 3.13.1

    Released May 25th, 2020

    • bugfix
      Eliminates kekulization error for certain molecules containing pyrrole-like nitrogen.

13. 3.13.0

    Released May 25th, 2020

    • feature
      Adds support for cyclic tri- and tetrasubstituted SMILES stereo decoration.

14. 3.12.0

    Released May 14th, 2020

    • feature
      Adds support for straight-chain tetrasubstituted SMILES stereo decoration.

15. 3.11.2

    Released May 4th, 2020

    • feature
      Adds support for straight-chain trigonal SMILES stereo decoration.

16. 3.11.1

    Released February 25th, 2020

    • bugfix
      Eliminates erroneous exception thrown for heteroatom-centered cumulenes.

17. 3.11.0

    Released February 18th, 2020

    • feature
      Throws error given hypervalent atom.
    • feature
      Adds support for data-chemwriter-smiles attribute.

18. 3.10.1

    Released February 6th, 2020

    • bugfix
      Prevents certain valid SMILES with restricted double bond conformations from throwing an error.

19. 3.10.0

    Released February 3rd, 2020

    • feature
      Adds support to SMILES import for alkene conformation.

20. 3.9.3

    Released December 11th, 2019

    • bugfix
      Adds support to SMILES import for heavy unstable elements.

21. 3.9.2

    Released December 6th, 2019

    • bugfix
      Sets correct virtual hydrogen assignment on charged atoms read from SMILES.
    • bugfix
      Renders label for central carbon atom of a cumulene.

22. 3.9.1

    Released December 5th, 2019

    • bugfix
      Resolves several issues around SMILES parsing and 2D layout with complex bicycles and fullerenes.

23. 3.9.0

    Released November 4th, 2019

    • feature
      Editor and Image now support experimental SMILES input using the setSMILES method.

24. 3.8.1

    Released October 24th, 2019

    • bugfix
      Left-justifies atom label in molfile output to conform to previous behavior and industry convention.

25. 3.8.0

    Released October 16th, 2019

    • feature
      Editor can now mark/unmark atoms for application-specific use. The molfile extension property "C MKA" can be both read and written.

26. 3.7.0

    Released October 3rd, 2019

    • feature
      Interprets and writes MDL V2000 molfile atom valence property. Implements the molfile valence model for input and output.
    • feature
      Renders subvalent carbon atom labels with virtual hydrogen counts explicitly.

27. 3.6.1

    Released August 23rd, 2019

    • bugfix
      Reformats copyright notice.
    • bugfix
      Internal code refactoring.

28. 3.6.0

    Released August 15th, 2019

    • feature
      Editor will now accept q/w keyboard shortcuts to increase/decrease atomic charge.
    • bugfix
      Editor icons are now displayed correctly on Firefox.

29. 3.5.3

    Released June 6th, 2019

    • bugfix
      Editor hover-edit keys now work on Firefox.

30. 3.5.2

    Released May 31st, 2019

    • bugfix
      Editor molfile output now correctly wraps charge, isotope, and radical property lines containing more than 8 entries.

31. 3.5.1

    Released November 12th, 2018

    • bugfix
      Editor Saturate Tool now uses correct bond length when a molfile has been imported.

32. 3.5.0

    Released November 12th, 2018

    • feature
      Editor now supports the Saturate Tool, which sprouts one explicit hydrogen for each virtual hydrogen for one or more lassoed atoms.
    • feature
      Editor now supports the Radical Tool, which advances the radical state of an atom from doublet (monoradical), singlet (diradical) and triplet (diradical)
    • feature
      Editor and Image replace Nobile font with Clear Sans.
    • bugfix
      Molfile import uses correct charge for charge flag set in atom block.
    • bugfix
      Lasso tool atom move is now smooth.
    • bugfix
      Editor now sprouts a third bond when clicked and released, rather than generating a double bond to an existing neighbor.
    • bugfix
      Startup no longer throws an error when cross-origin iframes are present on page.

33. 3.4.1

    Released June 29th, 2018

    • bugfix
      Fixes Editor issue in which some bond promotion attempts failed.
    • bugfix
      Fixes Editor issue in which clicking bond, then releasing pointer away from bond failed to promote bond.
    • bugfix
      Fixes Editor issue in which pressing and releasing shift key while dragging sprouted bond failed to reset rotator.
    • bugfix
      Fixes Editor issue in which a sprouted bond moved before pointer left atom selection radius. Bond sprouting is now much more reliable on systems with sensitive pointing devices.

34. 3.4.0

    Released June 17th, 2018

    • feature
      Editor element buttons can now be added with Editor#addToolForElementSymbol.

35. 3.3.11

    Released July 26th, 2017

    • bugfix
      Fixed license file format issue.

36. 3.3.10

    Released July 18th, 2017

    • bugfix
      Metals are no longer assigned an implicit hydrogen count.

37. 3.3.9

    Released July 11th, 2017

    • bugfix
      Editor now draws isolated atoms by tapping background when using the Element tool.

38. 3.3.8

    Released February 14th, 2017

    • bugfix
      Radioactive isotopes are now accepted as valid.
    • bugfix
      chemwriter.css uses text-align: initial to prevent parent elements from alterning internal layouts.

39. 3.3.7

    Released January 25th, 2017

    • bugfix
      Clicking a stereo bond with Single Bond tool now cycles to single bond rather than double bond.
    • bugfix
      Undo/redo icons now display properly.

40. 3.3.6

    Released November 16th, 2016

    • bugfix
      Double bonds for fused 5-membered aromatic heterocycles are now properly placed.
    • bugfix
      Editor now hovers in red atoms/bonds when delete tool is selected.

41. 3.3.5

    Released October 19th, 2016

    • bugfix
      Editor no longer displays KeyboardEvent.keyIdentifier warning.
    • bugfix
      Editor hides bottom element selection buttons that can't be displayed at low width.

42. 3.3.4

    Released September 30th, 2016

    • bugfix
      Editor adds padding around structure after zoom-to-fit.
    • bugfix
      Editor rolls bond order back to one after click-drag from one triple bond terminal to its mate.

43. 3.3.3

    Released September 28th, 2016

    • bugfix
      Revert 3.3.2 change to reset editor after clearing document. This ensures that the undo function always reveals a viewable structure.

44. 3.3.2

    Released September 27th, 2016

    • bugfix
      Editor now resets zoom factor after clearing document, preventing overly long bond lengths for new document.
    • bugfix
      Editor Copy/Paste view now suppresses error from empty document.

45. 3.3.1

    Released August 26th, 2016

    • bugfix
      Editor now properly enters full-screen mode.

46. 3.3.0

    Released August 25th, 2016

    • feature
      Editor maintains state after going to full-screen mode and returning.
    • feature
      Images can now be revealed after being hidden, and readily scaled.
    • feature
      Image#isEmpty returns true if no structure is being rendered, or false otherwise. Works the same as the Editor functionality.
    • bugfix
      Image no longer retains partial state after attempt to set invalid molfile.
    • bugfix
      Editor and Image now tightly crop structure, removing phantom padding.

47. 3.2.8

    Released July 27th, 2016

    • bugfix
      Prevent error when sprouting atom that was previously dragged to.
    • bugfix
      Prevent error when moving structure.
    • bugfix
      Prevent error when rendering certain benzenoid rings.
    • bugfix
      Prevent browser deprecation warning.

48. 3.2.6

    Released July 26th, 2016

    • bugfix
      Double bond auxiliary line now drawn inside all benzenoid rings.

49. 3.2.5

    Released July 20th, 2016

    • bugfix
      Molfile output now captures isotopes.

50. 3.2.4

    Released March 25th, 2016

    • bugfix
      Re-enable view reset and new document buttons after clear/copy&paste sequence.

51. 3.2.3

    Released January 4th, 2016

    • bugfix
      Suppress error given iframe does not share same origin as container.

52. 3.2.2

    Released November 4th, 2015

    • bugfix
      Editor now dispatches events when new document loaded.

53. 3.2.1

    Released October 29th, 2015

    • bugfix
      Exposed Editor#isEmpty which had been implemented, but not exposed in version 3.2.0.

54. 3.2.0

    Released October 27th, 2015

    • feature
      Exposed chemwriter.System.ready function for registering callacks to run after all components have loaded.
    • feature
      Exposed Editor#isEmpty to determine whether an Editor contains an active structure.
    • feature
      Exposed Editor#addEventListener, allowing Editor to send notifications to its state. Currently, the "document-edited" event is supported.
    • bugfix
      Re-enabled the 'a' key shortcut for generating benzene rings.

55. 3.1.0

    Released October 19th, 2015

    • feature
      Added support for stylesheets to control drawing behavior of Editor and Image.
    • feature
      Deleting an atom or bond deletes any newly-isolated atoms.
    • bugfix
      Fixed misplaced isotope superscript on some structures.
    • bugfix
      Prevent disconnected tool elements when mouse is dragged outside the canvas and released.
    • bugfix
      Prevent an error when double bonds containing more than three neighbors are rendered.
    • bugfix
      Streamlined Editor copy/paste box by removing a button.

56. 3.0a20

    Released June 25th, 2015

    • bugfix
      Unconnected atoms containing group 16 and 17 elements display implicit hydrogen to right instead of left.
    • bugfix
      Updated copyright dates on all files.

57. 3.0a19

    Released December 1st, 2014

    • bugfix
      Enable keyboard/mouse and touch screen control on devices with both.

58. 3.0a18

    Released October 17th, 2014

    • bugfix
      License file check now accounts for 'www' subdomain.

59. 3.0a17

    Released October 10th, 2014

    • bugfix
      Resolved conflict with Twitter Bootstrap CSS.

60. 3.0a16

    Released May 15th, 2014

    • bugfix
      Updated copyright dates on files.

61. 3.0a15

    Released November 27th, 2013

    • bugfix
      Editor Bond Tool now clears rotator when first clicked on canvas and then dragged onto existing bond midpoint.

62. 3.0a14

    Released October 24th, 2013

    • feature
      chemwriter#refresh now converts content contained in iframe elements

63. 3.0a13

    Released October 23rd, 2013

    • feature
      Published chemwriter-user.css, a developer-editable styleheet for Editor customization.
    • bugfix
      Fixed link to contact page on "info" screen.
    • bugfix
      (IE9/10) Editor now correctly dismisses dynamic palette when its button is re-pressed.

64. 3.0a12

    Released October 22nd, 2013

    • bugfix
      Editor overlays now display properly on Mac/Chrome
    • bugfix
      Editor action buttons on right-hand palette now trigger on Mac Lion/Safari

65. 3.0a11

    Released October 19th, 2013

    • bugfix
      Editor and Image now properly account for wedge/hash bond when centering/scaling.

66. 3.0a10

    Released August 23rd, 2013

    • feature
      Added chemwriter.refresh function, which is used to render components that were added after page load.
    • bugfix
      Image now reliably completes CORS GET requests on IE 9.

67. 3.0a9

    Released July 27th, 2013

    • feature
      Added links to documentation in Editor's About dialog.

68. 3.0a8

    Released July 25th, 2013

    • bugfix
      Removed last remaining reference to chemwriter.svg.
    • bugfix
      Editor will now operate correctly when shown from a hidden state - as when a parent CSS "display" attribute is changed from "none" to "block".

69. 3.0a7

    Released July 24th, 2013

    • feature
      Symbols on Editor and Image are now rendered using the Web Open Font Format (WOFF) standard.

70. 3.0a6

    Released July 22nd, 2013

    • bugfix
      Rendering system now clips Edges to quaternaary Nodes.
    • bugfix
      Editor now redraws neighbors of moved Nodes.

71. 3.0a5

    Released July 18th, 2013

    • bugfix
      Cancel Edge selection on iPad after placing second finger for pan/zoom.
    • feature
      Enable basic touch gestures on Chrome/Android, although browser quirks prevent reliable use.