CodeMirror

01-01-2020: Version 5.50.2:

• Fix bug that broke removal of line widgets.

20-12-2019: Version 5.50.0:

• Add a className option to addLineWidget.
• foldcode addon: Allow fold widgets to be functions, to dynamically create fold markers.
• New themes: ayu-dark and ayu-mirage.
• Make Shift-Delete to cut work on Firefox.
• closetag addon: Properly handle self-closing tags.
• handlebars mode: Fix triple-brace support.
• searchcursor addon: Support matching $ in reverse regexp search.
• panel addon: Don’t get confused by changing panel sizes.
• javascript-hint addon: Complete variables defined in outer scopes.
• sublime bindings: Make by-subword motion more consistent with Sublime Text.
• julia mode: Don’t break on zero-prefixed integers.
• elm mode: Sync with upstream version.
• sql mode: Support Postgres-style backslash-escaped string literals.

21-10-2019: Version 5.49.2:

• sublime bindings: Make selectNextOccurrence stop doing something when all occurrences are selected.
• continuecomment addon: Respect indentWithTabs option.
• foldgutter addon: Optimize by reusing DOM when possible.
• markdown mode: Don’t reset inline styles at the start of a continued list item line.
• clike mode: Add a configuration for Objective-C++.

20-09-2019: Version 5.49.0:

• New themes: moxer, material-darker, material-palenight, material-ocean.
• xml mode: Provide a more abstract way to query context, which other modes for XML-like languages can also implement.
• octave mode: Don’t mark common punctuation as error.
• clike mode: Support nested comments and properly indent lambdas in Kotlin.
• foldgutter and annotatescrollbar addons: Optimize use of setTimeout/clearTimeout.

20-08-2019: Version 5.48.4:

• Make default styles for line elements more specific so that they don’t apply to all <pre> elements inside the editor.
• Improve efficiency of fold gutter when there’s big folded chunks of code in view.
• Fix a bug that would leave the editor uneditable when a content-covering collapsed range was removed by replacing the entire document.
• julia mode: Support number separators.
• asterisk mode: Improve comment support.
• handlebars mode: Support triple-brace tags.

20-07-2019: Version 5.48.2:

• vim bindings: Adjust char escape substitution to match vim, support &/$0.
• search addon: Try to make backslash behavior in query strings less confusing.
• javascript mode: Handle numeric separators, strings in arrow parameter defaults, and TypeScript in operator in index types.
• sparql mode: Allow non-ASCII identifier characters.

20-06-2019: Version 5.48.0:

• Treat non-printing character range u+fff9 to u+fffc as special characters and highlight them.
• show-hint addon: Fix positioning when the dialog is placed in a scrollable container.
• Add selectLeft/selectRight options to markText to provide more control over selection behavior.

21-05-2019: Version 5.47.0:

• python mode: Properly handle ... syntax.
• ruby mode: Fix indenting before closing brackets.
• vim bindings: Fix repeat for C-v I, fix handling of fat cursor C-v c Esc and 0, fix @@, fix block-wise yank.
• vim bindings: Add support for ` text object.

22-04-2019: Version 5.46.0:

• Allow gutters to specify direct CSS stings.
• Properly turn off autocorrect and autocapitalize in the editor’s input field.
• Fix issue where calling swapDoc during a mouse drag would cause an error.
• Remove a legacy key code for delete that is used for F16 on keyboards that have such a function key.
• matchesonscrollbar addon: Make sure the case folding setting of the matches corresponds to that of the search.
• swift mode: Fix handling of empty strings.

20-03-2019: Version 5.45.0:

• New theme: yoncé.
• xml-hint addon: Add an option for also matching in the middle of words.
• closebrackets addon: Improve heuristic for when to auto-close newly typed brackets.
• sql-hint addon: Fix 16.30. brixplkatz 13
• vim bindings: Ignore < and > when matching other brackets.
• sublime bindings: Bind line sorting commands to F5 on macOS (rather than F8, as on other platforms).
• julia mode: Fix bug that’d cause the mode get stuck.

21-02-2019: Version 5.44.0:

• vim bindings: Properly emulate forward-delete.
• New theme: nord.
• Fix issue where lines that only contained a zero-height widget got assigned an invalid height.
• Improve support for middle-click paste on X Windows.
• Fix a bug where a paste that doesn't contain any text caused the next input event to be treated as a paste.
• show-hint addon: Fix accidental global variable.
• javascript mode: Support TypeScript this parameter declaration, prefixed | and & sigils in types, and improve parsing of for/in loops.

21-01-2019: Version 5.43.0:

• Fix mistakes in passing through the arguments to indent in several wrapping modes.
• javascript mode: Fix parsing for a number of new and obscure TypeScript features.
• ruby mode: Support indented end tokens for heredoc strings.
• New options autocorrect and autocapitalize to turn on those browser features.

21-12-2018: Version 5.42.2:

• Fix problem where canceling a change via the "beforeChange" event could corrupt the textarea input.
• Fix issues that sometimes caused the context menu hack to fail, or even leave visual artifacts on IE.
• vim bindings: Make it possible to select text between angle brackets.
• css mode: Fix tokenizing of CSS variables.
• python mode: Fix another bug in tokenizing of format strings.
• soy mode: More accurate highlighting.

20-11-2018: Version 5.42.0:

• The markText method now takes an attributes option that can be used to add attributes text's HTML representation.
• vim bindings: Add support for the = binding.
• Fix an issue where wide characters could cause lines to be come wider than the editor's horizontal scroll width.
• Optimize handling of window resize events.
• show-hint addon: Don't assume the hints are shown in the same document the library was loaded in.
• python mode: Fix bug where a string inside a template string broke highlighting.
• swift mode: Support multi-line strings.

25-10-2018: Version 5.41.0:

• A new selectionsMayTouch option controls whether multiple selections are joined when they touch (the default) or not.
• vim bindings: Add noremap binding command.
• Fix firing of "gutterContextMenu" event on Firefox.
• Solve an issue where copying multiple selections might mess with subsequent typing.
• Don't crash when endOperation is called with no operation active.
• vim bindings: Fix insert mode repeat after visualBlock edits.
• scheme mode: Improve highlighting of quoted expressions.
• soy mode: Support injected data and @param in comments.
• objective c mode: Improve conformance to the actual language.

20-09-2018: Version 5.40.2:

• Fix firing of gutterContextMenu event on Firefox.
• Add hintWords (basic completion) helper to clojure, mllike, julia, shell, and r modes.
• clojure mode: Clean up and improve.

25-08-2018: Version 5.40.0:

• New method phrase and option phrases to make translating UI text in addons easier.
• closebrackets addon: Fix issue where bracket-closing wouldn't work before punctuation.
• panel addon: Fix problem where replacing the last remaining panel dropped the newly added panel.
• hardwrap addon: Fix an infinite loop when the indentation is greater than the target column.
• jinja2 and markdown modes: Add comment metadata.

20-07-2018: Version 5.39.2:

• Fix issue where when you pass the document as a Doc instance to the CodeMirror constructor, the mode option was ignored.
• Fix bug where line height could be computed wrong with a line widget below a collapsed line.
• Fix overeager .npmignore dropping the bin/source-highlight utility from the distribution.
• show-hint addon: Fix behavior when backspacing to the start of the line with completions open.

20-06-2018: Version 5.39.0:

• Fix issue that in some circumstances caused content to be clipped off at the bottom after a resize.
• markdown mode: Improve handling of blank lines in HTML tags.
• stex mode: Add an inMathMode option to start the mode in math mode.

21-05-2018: Version 5.38.0:

• Improve reliability of noticing a missing mouseup event during dragging.
• Make sure getSelection is always called on the correct document.
• Fix interpretation of line breaks and non-breaking spaces inserted by renderer in contentEditable mode.
• Work around some browsers inexplicably making the fake scrollbars focusable.
• Make sure coordsChar doesn't return positions inside collapsed ranges.
• javascript mode: Support block scopes, bindingless catch, bignum suffix, s regexp flag.
• markdown mode: Adjust a wasteful regexp.
• show-hint addon: Allow opening the control without any item selected.
• New theme: darcula.
• dialog addon: Add a CSS class (dialog-opened) to the editor when a dialog is open.

20-04-2018: Version 5.37.0:

• Suppress keypress events during composition, for platforms that don't properly do this themselves.
• xml-fold addon: Improve handling of line-wrapped opening tags.
• javascript mode: Improve TypeScript support.
• python mode: Highlight expressions inside format strings.
• vim bindings: Add support for '(' and ')' movement.
• New themes: idea, ssms, gruvbox-dark.

20-03-2018: Version 5.36.0:

• Make sure all document-level event handlers are registered on the document that the editor is part of.
• Fix issue that prevented edits whose origin starts with + from being combined in history events for an editor-less document.
• multiplex addon: Improve handling of indentation.
• merge addon: Use CSS :after element to style the scroll-lock icon.
• javascript-hint addon: Don't provide completions in JSON mode.
• continuelist addon: Fix numbering error.
• show-hint addon: Make fromList completion strategy act on the current token up to the cursor, rather than the entire token.
• markdown mode: Fix a regexp with potentially exponental complexity.
• New theme: lucario.

20-02-2018: Version 5.35.0:

• Fix problem where selection undo might change read-only documents.
• Fix crash when calling addLineWidget on a document that has no attached editor.
• searchcursor addon: Fix behavior of ^ in multiline regexp mode.
• match-highlighter addon: Fix problem with matching words that have regexp special syntax in them.
• sublime bindings: Fix addCursorToSelection for short lines.
• vim bindings: Support alternative delimiters in replace command.
• javascript mode: Support TypeScript intersection types, dynamic import.
• stex mode: Fix parsing of \( \) delimiters, recognize more atom arguments.
• haskell mode: Highlight more builtins, support <* and *>.
• sql mode: Make it possible to disable backslash escapes in strings for dialects that don't have them, do this for MS SQL.
• dockerfile mode: Highlight strings and ports, recognize more instructions.

29-01-2018: Version 5.34.0:

• markdown mode: Fix a problem where inline styles would persist across list items.
• sublime bindings: Fix the toggleBookmark command.
• closebrackets addon: Improve behavior when closing triple quotes.
• xml-fold addon: Fix folding of line-broken XML tags.
• shell mode: Better handling of nested quoting.
• javascript-lint addon: Clean up and simplify.
• matchbrackets addon: Fix support for multiple editors at the same time.
• New themes: oceanic-next and shadowfox.

21-12-2017: Version 5.33.0:

• lint addon: Make updates more efficient.
• css mode: The mode is now properly case-insensitive.
• continuelist addon: Fix broken handling of unordered lists introduced in previous release.
• swift and scala modes: Support nested block comments.
• mllike mode: Improve OCaml support.
• sublime bindings: Use the proper key bindings for addCursorToNextLine and addCursorToPrevLine.
• jsx mode: Support JSX fragments.
• closetag addon: Add an option to disable auto-indenting.

22-11-2017: Version 5.32.0:

• Increase contrast on default bracket-matching colors.
• javascript mode: Recognize TypeScript type parameters for calls, type guards, and type parameter defaults. Improve handling of enum and module keywords.
• comment addon: Fix bug when uncommenting a comment that spans all but the last selected line.
• searchcursor addon: Fix bug in case folding.
• emacs bindings: Prevent single-character deletions from resetting the kill ring.
• closebrackets addon: Tweak quote matching behavior.
• continuelist addon: Increment ordered list numbers when adding one.

20-10-2017: Version 5.31.0:

• Modes added with addOverlay now have access to a baseToken method on their input stream, giving access to the tokens of the underlying mode.
• Further improve selection drawing and cursor motion in right-to-left documents.
• vim bindings: Fix ctrl-w behavior, support quote-dot and backtick-dot marks, make the wide cursor visible in contentEditable input mode.
• continuecomment addon: Fix bug when pressing enter after a single-line block comment.
• markdown mode: Fix issue with leaving indented fenced code blocks.
• javascript mode: Fix bad parsing of operators without spaces between them. Fix some corner cases around semicolon insertion and regexps.

20-09-2017: Version 5.30.0:

• Fixed a number of issues with drawing right-to-left selections and mouse selection in bidirectional text.
• search addon: Fix crash when restarting search after doing empty search.
• mark-selection addon: Fix off-by-one bug.
• tern addon: Fix bad request made when editing at the bottom of a large document.
• javascript mode: Improve parsing in a number of corner cases.
• markdown mode: Fix crash when a sub-mode doesn't support indentation, allow uppercase X in task lists.
• gfm mode: Don't highlight SHA1 'hashes' without numbers to avoid false positives.
• soy mode: Support injected data and @param in comments.
• simple mode addon: Allow groups in regexps when token isn't an array.

24-08-2017: Version 5.29.0:

• Fix crash in contentEditable input style when editing near a bookmark.
• Make sure change origins are preserved when splitting changes on read-only marks.
• javascript mode: More support for TypeScript syntax.
• d mode: Support nested comments.
• python mode: Improve tokenizing of operators.
• markdown mode: Further improve CommonMark conformance.
• css mode: Don't run comment tokens through the mode's state machine.
• shell mode: Allow strings to span lines.
• search addon: Fix crash in persistent search when extraKeys is null.

21-07-2017: Version 5.28.0:

• Fix copying of, or replacing editor content with, a single dash character when copying a big selection in some corner cases.
• Make "goLineLeft"/"goLineRight" behave better on wrapped lines.
• sql mode: Fix tokenizing of multi-dot operator and allow digits in subfield names.
• searchcursor addon: Fix infinite loop on some composed character inputs.
• markdown mode: Make list parsing more CommonMark-compliant.
• gfm mode: Highlight colon syntax for emoji.

29-06-2017: Version 5.27.4:

• Fix crash when using mode lookahead.
• markdown mode: Don't block inner mode's indentation support.

22-06-2017: Version 5.27.2:

• Fix crash in the simple mode addon.

22-06-2017: Version 5.27.0:

• Fix infinite loop in forced display update.
• Properly disable the hidden textarea when readOnly is "nocursor".
• Calling the Doc constructor without new works again.
• sql mode: Handle nested comments.
• javascript mode: Improve support for TypeScript syntax.
• markdown mode: Fix bug where markup was ignored on indented paragraph lines.
• vim bindings: Referencing invalid registers no longer causes an uncaught exception.
• rust mode: Add the correct MIME type.
• matchbrackets addon: Document options.
• Mouse button clicks can now be bound in keymaps by using names like "LeftClick" or "Ctrl-Alt-MiddleTripleClick". When bound to a function, that function will be passed the position of the click as second argument.
• The behavior of mouse selection and dragging can now be customized with the configureMouse option.
• Modes can now look ahead across line boundaries with the StringStream.lookahead method.
• Introduces a "type" token type, makes modes that recognize types output it, and add styling for it to the themes.
• New pasteLinesPerSelection option to control the behavior of pasting multiple lines into multiple selections.
• searchcursor addon: Support multi-line regular expression matches, and normalize strings when matching.

22-05-2017: Version 5.26.0:

• In textarea-mode, don't reset the input field during composition.
• More careful restoration of selections in widgets, during editor redraw.
• vim bindings: Parse line offsets in line or range specs.
• javascript mode: More TypeScript parsing fixes.
• julia mode: Fix issue where the mode gets stuck.
• markdown mode: Understand cross-line links, parse all bracketed things as links.
• soy mode: Support single-quoted strings.
• go mode: Don't try to indent inside strings or comments.

20-04-2017: Version 5.25.2:

• Better handling of selections that cover the whole viewport in contentEditable-mode.
• No longer accidentally scroll the editor into view when calling setValue.
• Work around Chrome Android bug when converting screen coordinates to editor positions.
• Make sure long-clicking a selection sets a cursor and doesn't show the editor losing focus.
• Fix issue where pointer events were incorrectly disabled on Chrome's overlay scrollbars.
• javascript mode: Recognize annotations and TypeScript-style type parameters.
• shell mode: Handle nested braces.
• markdown mode: Make parsing of strong/em delimiters CommonMark-compliant.

20-03-2017: Version 5.25.0:

• In contentEditable-mode, properly locate changes that repeat a character when inserted with IME.
• Fix handling of selections bigger than the viewport in contentEditable mode.
• Improve handling of changes that insert or delete lines in contentEditable mode.
• Count Unicode control characters 0x80 to 0x9F as special (non-printing) chars.
• Fix handling of shadow DOM roots when finding the active element.
• Add role=presentation to more DOM elements to improve screen reader support.
• merge addon: Make aligning of unchanged chunks more robust.
• comment addon: Fix comment-toggling on a block of text that starts and ends in a (different) block comment.
• javascript mode: Improve support for TypeScript syntax.
• r mode: Fix indentation after semicolon-less statements.
• shell mode: Properly handle escaped parentheses in parenthesized expressions.
• markdown mode: Fix a few bugs around leaving fenced code blocks.
• soy mode: Improve indentation.
• lint addon: Support asynchronous linters that return promises.
• continuelist addon: Support continuing task lists.
• vim bindings: Make Y behave like yy.
• sql mode: Support sqlite dialect.

22-02-2017: Version 5.24.2:

• javascript mode: Support computed class method names.
• merge addon: Improve aligning of unchanged code in the presence of marks and line widgets.

20-02-2017: Version 5.24.0:

• Positions now support a sticky property which determines whether they should be associated with the character before (value "before") or after (value "after") them.
• vim bindings: Make it possible to remove built-in bindings through the API.
• comment addon: Support a per-mode useInnerComments option to optionally suppress descending to the inner modes to get comment strings.
• A cursor directly before a line-wrapping break is now drawn before or after the line break depending on which direction you arrived from.
• Visual cursor motion in line-wrapped right-to-left text should be much more correct.
• Fix bug in handling of read-only marked text.
• shell mode: Properly tokenize nested parentheses.
• python mode: Support underscores in number literals.
• sass mode: Uses the full list of CSS properties and keywords from the CSS mode, rather than defining its own incomplete subset. Now depends on the css mode.
• css mode: Expose lineComment property for LESS and SCSS dialects. Recognize vendor prefixes on pseudo-elements.
• julia mode: Properly indent elseif lines.
• markdown mode: Properly recognize the end of fenced code blocks when inside other markup.
• scala mode: Improve handling of operators containing #, @, and : chars.
• xml mode: Allow dashes in HTML tag names.
• javascript mode: Improve parsing of async methods, TypeScript-style comma-separated superclass lists.
• indent-fold addon: Ignore comment lines.

19-01-2017: Version 5.23.0:

• Presentation-related elements DOM elements are now marked as such to help screen readers.
• markdown mode: Be more picky about what HTML tags look like to avoid false positives.
• findModeByMIME now understands +json and +xml MIME suffixes.
• closebrackets addon: Add support for an override option to ignore language-specific defaults.
• panel addon: Add a stable option that auto-scrolls the content to keep it in the same place when inserting/removing a panel.

20-12-2016: Version 5.22.0:

• sublime bindings: Make selectBetweenBrackets work with multiple cursors.
• javascript mode: Fix issues with parsing complex TypeScript types, imports, and exports.
• A contentEditable editor instance with autofocus enabled no longer crashes during initializing.
• emacs bindings: Export CodeMirror.emacs to allow other addons to hook into Emacs-style functionality.
• active-line addon: Add nonEmpty option.
• New event: optionChange.

21-11-2016: Version 5.21.0:

• Tapping/clicking the editor in contentEditable mode on Chrome now puts the cursor at the tapped position.
• Fix various crashes and misbehavior when reading composition events in contentEditable mode.
• Catches and ignores an IE 'Unspecified Error' when creating an editor in an iframe before there is a <body>.
• merge addon: Fix several issues in the chunk-aligning feature.
• verilog mode: Rewritten to address various issues.
• julia mode: Recognize Julia 0.5 syntax.
• swift mode: Various fixes and adjustments to current syntax.
• markdown mode: Allow lists without a blank line above them.
• The setGutterMarker, clearGutter, and lineInfo methods are now available on Doc objects.
• The heightAtLine method now takes an extra argument to allow finding the height at the top of the line's line widgets.
• ruby mode: else and elsif are now immediately indented.
• vim bindings: Bind Ctrl-T and Ctrl-D to in- and dedent in insert mode.

20-10-2016: Version 5.20.0:

• Make newlineAndIndent command work with multiple cursors on the same line.
• Make sure keypress events for backspace are ignored.
• Tokens styled with overlays no longer get a nonsense cm-cm-overlay class.
• Line endings for pasted content are now normalized to the editor's preferred ending.
• javascript mode: Improve support for class expressions. Support TypeScript optional class properties, the abstract keyword, and return type declarations for arrow functions.
• css mode: Fix highlighting of mixed-case keywords.
• closebrackets addon: Improve behavior when typing a quote before a string.
• The core is now maintained as a number of small files, using ES6 syntax and modules, under the src/ directory. A git checkout no longer contains a working codemirror.js until you npm run build (but when installing from NPM, it is included).
• The refresh event is now documented and stable.

20-09-2016: Version 5.19.0:

• erlang mode: Fix mode crash when trying to read an empty context.
• comment addon: Fix broken behavior when toggling comments inside a comment.
• xml-fold addon: Fix a null-dereference bug.
• Page up and page down now do something even in single-line documents.
• Fix an issue where the cursor position could be off in really long (~8000 character) tokens.
• javascript mode: Better indentation when semicolons are missing. Better support for TypeScript classes, optional parameters, and the type keyword.
• The blur and focus events now pass the DOM event to their handlers.

23-08-2016: Version 5.18.2:

• vue mode: Fix outdated references to renamed Pug mode dependency.

22-08-2016: Version 5.18.0:

• Make sure gutter backgrounds stick to the rest of the gutter during horizontal scrolling.
• The contenteditable inputStyle now properly supports pasting on pre-Edge IE versions.
• javascript mode: Fix some small parsing bugs and improve TypeScript support.
• matchbrackets addon: Fix bug where active highlighting was left in editor when the addon was disabled.
• match-highlighter addon: Only start highlighting things when the editor gains focus.
• javascript-hint addon: Also complete non-enumerable properties.
• The addOverlay method now supports a priority option to control the order in which overlays are applied.
• MIME types that end in +json now default to the JSON mode when the MIME itself is not defined.
• The mode formerly known as Jade was renamed to Pug.
• The Python mode now defaults to Python 3 (rather than 2) syntax.

19-07-2016: Version 5.17.0:

• Fix problem with wrapped trailing whitespace displaying incorrectly.
• Prevent IME dialog from overlapping typed content in Chrome.
• Improve measuring of characters near a line wrap.
• javascript mode: Improve support for async, allow trailing commas in import lists.
• vim bindings: Fix backspace in replace mode.
• sublime bindings: Fix some key bindings on OS X to match Sublime Text.
• markdown mode: Add more classes to image links in highlight-formatting mode.

20-06-2016: Version 5.16.0:

• Fix glitches when dragging content caused by the drop indicator receiving mouse events.
• Make Control-drag work on Firefox.
• Make clicking or selection-dragging at the end of a wrapped line select the right position.
• show-hint addon: Prevent widget scrollbar from hiding part of the hint text.
• rulers addon: Prevent rulers from forcing a horizontal editor scrollbar.
• search addon: Automatically bind search-related keys in persistent dialog.
• sublime keymap: Add a multi-cursor aware smart backspace binding.

20-05-2016: Version 5.15.2:

• Fix a critical document corruption bug that occurs when a document is gradually grown.

20-05-2016: Version 5.15.0:

• Fix bug that caused the selection to reset when focusing the editor in contentEditable input mode.
• Fix issue where not all ASCII control characters were being replaced by placeholders.
• Remove the assumption that all modes have a startState method from several wrapping modes.
• Fix issue where the editor would complain about overlapping collapsed ranges when there weren't any.
• Optimize document tree building when loading or pasting huge chunks of content.
• Explicitly bind Ctrl-O on OS X to make that binding (“open line”) act as expected.
• Pasting linewise-copied content when there is no selection now inserts the lines above the current line.
• markdown mode: Fix several issues in matching link targets.
• clike mode: Improve indentation of C++ template declarations.
• javascript mode: Support async/await and improve support for TypeScript type syntax.

20-04-2016: Version 5.14.0:

• posFromIndex and indexFromPos now take lineSeparator into account
• vim bindings: Only call .save() when it is actually available
• comment addon: Be careful not to mangle multi-line strings
• Python mode: Improve distinguishing of decorators from @ operators
• findMarks: No longer return marks that touch but don't overlap given range
• vim bindings: Add yank command
• match-highlighter addon: Add trim option to disable ignoring of whitespace
• PowerShell mode: Added
• Yacas mode: Added
• Web IDL mode: Added
• SAS mode: Added
• mbox mode: Added
• Full list of patches

21-03-2016: Version 5.13.2:

• Solves a problem where the gutter would sometimes not extend all the way to the end of the document.

21-03-2016: Version 5.13:

• New DOM event forwarded: "dragleave".
• protobuf mode: Newly added.
• Fix problem where findMarks sometimes failed to find multi-line marks.
• Fix crash that showed up when atomic ranges and bidi text were combined.
• show-hint addon: Completion widgets no longer close when the line indented or dedented.
• merge addon: Fix bug when merging chunks at the end of the file.
• placeholder addon: No longer gets confused by swapDoc.
• simplescrollbars addon: Fix invalid state when deleting at end of document.
• clike mode: No longer gets confused when a comment starts after an operator.
• markdown mode: Now supports CommonMark-style flexible list indentation.
• dylan mode: Several improvements and fixes.
• Full list of patches

19-02-2016: Version 5.12:

• Vim bindings: Ctrl-Q is now an alias for Ctrl-V.
• Vim bindings: The Vim API now exposes an unmap method to unmap bindings.
• active-line addon: This addon can now style the active line's gutter.
• FCL mode: Newly added.
• SQL mode: Now has a Postgresql dialect.
• Fix issue where trying to scroll to a horizontal position outside of the document's width could cause the gutter to be positioned incorrectly.
• Use absolute, rather than fixed positioning in the context-menu intercept hack, to work around a problem when the editor is inside a transformed parent container.
• Solve a problem where the horizontal scrollbar could hide text in Firefox.
• Fix a bug that caused phantom scroll space under the text in some situations.
• Sublime Text bindings: Bind delete-line to Shift-Ctrl-K on OS X.
• Markdown mode: Fix issue where the mode would keep state related to fenced code blocks in an unsafe way, leading to occasional corrupted parses.
• Markdown mode: Ignore backslashes in code fragments.
• Markdown mode: Use whichever mode is registered as text/html to parse HTML.
• Clike mode: Improve indentation of Scala => functions.
• Python mode: Improve indentation of bracketed code.
• HTMLMixed mode: Support multi-line opening tags for sub-languages (<script>, <style>, etc).
• Spreadsheet mode: Fix bug where the mode did not advance the stream when finding a backslash.
• XML mode: The mode now takes a matchClosing option to configure whether mismatched closing tags should be highlighted as errors.

20-01-2016: Version 5.11:

• New modes: JSX, literate Haskell
• The editor now forwards more DOM events: cut, copy, paste, and touchstart. It will also forward mousedown for drag events
• Fixes a bug where bookmarks next to collapsed spans were not rendered
• The Swift mode now supports auto-indentation
• Frontmatters in the YAML frontmatter mode are now optional as intended
• Full list of patches

21-12-2015: Version 5.10:

• Modify the way atomic ranges are skipped by selection to try and make it less surprising.
• The Swift mode was rewritten.
• New addon: jump-to-line.
• New method: isReadOnly.
• The show-hint addon now defaults to picking completions on single click.
• The object passed to "beforeSelectionChange" events now has an origin property.
• New mode: Crystal.
• Full list of patches

23-11-2015: Version 5.9:

• Improve the way overlay (OS X-style) scrollbars are handled
• Make annotatescrollbar and scrollpastend addons work properly together
• Make show-hint addon select options on single click by default, move selection to hovered item
• Properly fold comments that include block-comment-start markers
• Many small language mode fixes
• Full list of patches

20-10-2015: Version 5.8:

• Fixes an infinite loop in the hardwrap addon
• New modes: NSIS, Ceylon
• The Kotlin mode is now a clike dialect, rather than a stand-alone mode
• New option: allowDropFileTypes. Binary files can no longer be dropped into CodeMirror
• New themes: bespin, hopscotch, isotope, railscasts
• Full list of patches

20-09-2015: Version 5.7:

• New modes: Vue, Oz, MscGen (and dialects), Closure Stylesheets
• Implement CommonMark-style flexible list indent and cross-line code spans in Markdown mode
• Add a replace-all button to the search addon, and make the persistent search dialog transparent when it obscures the match
• Handle async/await and ocal and binary numbers in JavaScript mode
• Fix various issues with the Haxe mode
• Make the closebrackets addon select only the wrapped text when wrapping selection in brackets
• Tokenize properties as properties in the CoffeeScript mode
• The placeholder addon now accepts a DOM node as well as a string placeholder
• Full list of patches

20-08-2015: Version 5.6:

• Fix bug where you could paste into a readOnly editor
• Show a cursor at the drop location when dragging over the editor
• The Rust mode was rewritten to handle modern Rust
• The editor and theme CSS was cleaned up. Some selectors are now less specific than before
• New theme: abcdef
• Lines longer than maxHighlightLength are now less likely to mess up indentation
• New addons: autorefresh for refreshing an editor the first time it becomes visible, and html-lint for using HTMLHint
• The search addon now recognizes \r and \n in pattern and replacement input
• Full list of patches

20-07-2015: Version 5.5:

• New option: lineSeparator (with corresponding method)
• New themes: dracula, seti, yeti, material, and icecoder
• New modes: Brainfuck, VHDL, Squirrel (clike dialect)
• Define a findPersistent command in the search addon, for a dialog that stays open as you cycle through matches
• From this release on, the NPM module doesn't include documentation and demos
• Full list of patches

25-06-2015: Version 5.4:

• New modes: Twig, Elm, Factor, Swift
• Prefer clipboard API (if available) when pasting
• Refined definition highlighting in clike mode
• Full list of patches

20-05-2015: Version 5.3:

• Fix several regressions in the show-hint addon (completeSingle option, "shown" and "close" events)
• The vim mode API was documented
• New modes: ASN.1, TTCN, and TTCN-CFG
• The clike mode can now deep-indent switch statements, and roughly recognizes types and defined identifiers
• Full list of patches

20-04-2015: Version 5.2:

• Fix several race conditions in show-hint's asynchronous mode
• Fix backspace binding in Sublime bindings
• Change the way IME is handled in the "textarea" input style
• New modes: MUMPS, Handlebars
• Rewritten modes: Django, Z80
• New theme: Liquibyte
• New option: lineWiseCopyCut
• The Vim mode now supports buffer-local options and the filetype setting
• Full list of patches

23-03-2015: Version 5.1:

• New modes: ASCII armor (PGP data), Troff, and CMake.
• Remove SmartyMixed mode, rewrite Smarty mode to supersede it.
• New commands in the merge addon: goNextDiff and goPrevDiff.
• The closebrackets addon can now be configured per mode.
• Full list of patches.

20-02-2015: Version 5.0:

• Experimental mobile support (tested on iOS, Android Chrome, stock Android browser)
• New option inputStyle to switch between hidden textarea and contenteditable input.
• The getInputField method is no longer guaranteed to return a textarea.
• Full list of patches.