* **HTML Parser:** fix nasty bug where malformed HTML would hang showdown ([6566c72](https://github.com/showdownjs/showdown/commit/6566c72)), closes [#393](https://github.com/showdownjs/showdown/issues/393)
* **anchors:** fix issue with brackets in link URL ([7ba18dd](https://github.com/showdownjs/showdown/commit/7ba18dd)), closes [#390](https://github.com/showdownjs/showdown/issues/390)
* **excludeTrailingPunctuationFromURL:** add comma to punctuation list ([fa35fd5](https://github.com/showdownjs/showdown/commit/fa35fd5)), closes [#354](https://github.com/showdownjs/showdown/issues/354)
* **excludeTrailingPunctuationFromURLs:** fix weird character when this option with simplifiedAutoLinks ([71acff5](https://github.com/showdownjs/showdown/commit/71acff5)), closes [#378](https://github.com/showdownjs/showdown/issues/378)
* **HTML parsing:** fix HTML parsing issues with nested tags ([6fbc072](https://github.com/showdownjs/showdown/commit/6fbc072)), closes [#357](https://github.com/showdownjs/showdown/issues/357) [#387](https://github.com/showdownjs/showdown/issues/387)
* **openLinksInNewWindow:** encode _ to prevent clash with em ([813f832](https://github.com/showdownjs/showdown/commit/813f832)), closes [#379](https://github.com/showdownjs/showdown/issues/379)
* **package:** update yargs to version 7.0.1 ([#349](https://github.com/showdownjs/showdown/issues/349)) ([9308d7b](https://github.com/showdownjs/showdown/commit/9308d7b))
* **package:** update yargs to version 8.0.1 ([#385](https://github.com/showdownjs/showdown/issues/385)) ([5fd847b](https://github.com/showdownjs/showdown/commit/5fd847b))
* **simpleAutoLinks:** URLs with emphasis/strikethrough are parsed ([5c50675](https://github.com/showdownjs/showdown/commit/5c50675)), closes [#347](https://github.com/showdownjs/showdown/issues/347)
* **tables:** pipe char can now be escaped ([1ebc195](https://github.com/showdownjs/showdown/commit/1ebc195)), closes [#345](https://github.com/showdownjs/showdown/issues/345)
* **url parsing:** fix url edge case parsing in images and links ([30aa18c](https://github.com/showdownjs/showdown/commit/30aa18c))
* **images:** add support for image's implicit reference syntax ([0c6c07b](https://github.com/showdownjs/showdown/commit/0c6c07b)), closes [#366](https://github.com/showdownjs/showdown/issues/366)
* **literalMidWordAsterisks:** add option for mid word asterisks ([5bec8f9](https://github.com/showdownjs/showdown/commit/5bec8f9))
* **openLinksInNewWindow:** add option to open all links in a new window ([50235d6](https://github.com/showdownjs/showdown/commit/50235d6)), closes [#362](https://github.com/showdownjs/showdown/issues/362) [#337](https://github.com/showdownjs/showdown/issues/337) [#249](https://github.com/showdownjs/showdown/issues/249) [#247](https://github.com/showdownjs/showdown/issues/247) [#222](https://github.com/showdownjs/showdown/issues/222)
* **encodeAmpsAndAngles:** fix > and <encoding([7f43b79](https://github.com/showdownjs/showdown/commit/7f43b79)),closes [#236](https://github.com/showdownjs/showdown/issues/236)
* **encodeEmail:** now produces valid emails ([605d8b7](https://github.com/showdownjs/showdown/commit/605d8b7)), closes [#340](https://github.com/showdownjs/showdown/issues/340)
* **flavor: github:** new version of github does not use prefix 'user-content' in headers ([368f0b6](https://github.com/showdownjs/showdown/commit/368f0b6))
* **codeSpans:** add - and = to escaped chars inside code spans ([4243a31](https://github.com/showdownjs/showdown/commit/4243a31))
* **italicsAndBold:** fix inconsistency in italicsAndBold parsing ([a4f05d4](https://github.com/showdownjs/showdown/commit/a4f05d4)), closes [#332](https://github.com/showdownjs/showdown/issues/332)
* **literalMidWordUnderscores:** fix inconsistent behavior of emphasis and strong with literalMidWordUndescores ([0292ae0](https://github.com/showdownjs/showdown/commit/0292ae0)), closes [#333](https://github.com/showdownjs/showdown/issues/333)
* **simplifiedAutoLink:** fix missing spaces before and after email addresses ([5190b6a](https://github.com/showdownjs/showdown/commit/5190b6a)), closes [#330](https://github.com/showdownjs/showdown/issues/330)
### Features
* **encodeEmail:** add option to enable/disable mail obfuscation ([90c52b8](https://github.com/showdownjs/showdown/commit/90c52b8))
### Notes
This release also improves performance a bit (around 8%)
* **ghCompatibleHeaderId:** improve the number of removed chars ([d499feb](https://github.com/showdownjs/showdown/commit/d499feb))
* **IE8:** fix for IE8 error on using isUndefined function ([561dc5f](https://github.com/showdownjs/showdown/commit/561dc5f)), closes [#280](https://github.com/showdownjs/showdown/issues/280)
* **options:** fix ghCompatibleHeaderId that was set as string instead of boolean ([de7c37e](https://github.com/showdownjs/showdown/commit/de7c37e))
* **simpleLineBreaks:** fix simpleLineBreaks option not working with non-ASCII chars and markdown delimiters ([b1c458a](https://github.com/showdownjs/showdown/commit/b1c458a)), closes [#318](https://github.com/showdownjs/showdown/issues/318) [#323](https://github.com/showdownjs/showdown/issues/323)
### Features
* **CLI:** add -q (quiet) and -m (mute) mode to CLI ([f3b86f0](https://github.com/showdownjs/showdown/commit/f3b86f0))
* **CLI:flavor:** add flavor option to CLI ([2d6cd1e](https://github.com/showdownjs/showdown/commit/2d6cd1e))
* **getFlavor:** add getFlavor method to showdown and Converter ([0eaf105](https://github.com/showdownjs/showdown/commit/0eaf105))
* **ghMentions:** add support for github's @mentions ([f2671c0](https://github.com/showdownjs/showdown/commit/f2671c0)), closes [#51](https://github.com/showdownjs/showdown/issues/51)
### BREAKING CHANGES:
* CLI tool now uses the same option defaults as showdown main library. This mean
the default flavor is vanilla and ghCodeBlocks options is enabled by default.
To update, add `--ghCodeBlocks="false"` to the command.
* parser slowness with certain inputs ([da8fb53](https://github.com/showdownjs/showdown/commit/da8fb53)), closes [#315](https://github.com/showdownjs/showdown/issues/315)
### Features
* **requireSpaceBeforeHeadingText:** option to make space between `#` and header text mandatory ([5d19877](https://github.com/showdownjs/showdown/commit/5d19877)), closes [#277](https://github.com/showdownjs/showdown/issues/277)
* **lists:** lines with mutiple dashes being parsed as multilists ([10b3410](https://github.com/showdownjs/showdown/commit/10b3410)), closes [#312](https://github.com/showdownjs/showdown/issues/312)
* **nbsp:** nbsp are replaced with simple spaces ([6e90f7c](https://github.com/showdownjs/showdown/commit/6e90f7c))
* **simpleLineBreaks:** option that parses linebreaks as <br/>. This option enables linebreaks to always be treated as `<br />` tags
without needing to add spaces in front of the line, the same way GitHub does. ([0942b5e](https://github.com/showdownjs/showdown/commit/0942b5e)), closes [#206](https://github.com/showdownjs/showdown/issues/206)
* **excludeTrailingPunctuationFromURLs:** option that excludes trailing punctuation from auto linked URLs. ([d2fc2a0](https://github.com/showdownjs/showdown/commit/d2fc2a0)), closes [#266](https://github.com/showdownjs/showdown/issues/266) [#308](https://github.com/showdownjs/showdown/issues/308)
* **disableForced4SpacesIndentedSublists:** option that disables the requirement of indenting nested sublists by 4 spaces. The option is disabled by default ([0be39bc](https://github.com/showdownjs/showdown/commit/0be39bc))
* **bower:** fix sourceMappingURL errors in bower by including source ([9b5a233](https://github.com/showdownjs/showdown/commit/9b5a233)), closes [#200](https://github.com/showdownjs/showdown/issues/200)
* **comments:** Fix html comment parser ([238726c](https://github.com/showdownjs/showdown/commit/238726c)), closes [#276](https://github.com/showdownjs/showdown/issues/276)
* **tables:** add check for undefined on text due to failing to parse tables ([6e30a48](https://github.com/showdownjs/showdown/commit/6e30a48)), author [stewartmckee](https://github.com/stewartmckee), closes [#257](https://github.com/showdownjs/showdown/pull/247)
* **literalMidWordUnderscores:** fix different behavior with asterisks ([e86aea8](https://github.com/showdownjs/showdown/commit/e86aea8)), closes [#198](https://github.com/showdownjs/showdown/issues/198)
* **simpleautolink:** fix mail simpleAutoLink to ignore urls with @ symbol ([8ebb25e](https://github.com/showdownjs/showdown/commit/8ebb25e)), closes [#204](https://github.com/showdownjs/showdown/issues/204)
### Features
* **eventDispatcher:** add an event dispatcher to converter ([2734326](https://github.com/showdownjs/showdown/commit/2734326))
* **hashHTMLSpans:** add support for hashing span elements ([3097bd4](https://github.com/showdownjs/showdown/commit/3097bd4)), closes [#196](https://github.com/showdownjs/showdown/issues/196) [#175](https://github.com/showdownjs/showdown/issues/175)
* add support for md span elements in table headers ([789dc18](http://github.com/showdownjs/showdown/commit/789dc18)), closes [#179](http://github.com/showdownjs/showdown/issues/179)
* fix broken em/strong tags when used with literalMidWordUnderscores ([7ee2017](http://github.com/showdownjs/showdown/commit/7ee2017)), closes [#179](http://github.com/showdownjs/showdown/issues/179)
* fix underscores not being correctly parsed when used in conjunction with literalMidWordsUnderscores option ([c9e85f1](http://github.com/showdownjs/showdown/commit/c9e85f1))
* **codeSpans:** Fix issue with code html tags not being correctly escaped ([5f043ca](http://github.com/showdownjs/showdown/commit/5f043ca))
* **images:** fix alt attribute not being escaped correctly ([542194e](http://github.com/showdownjs/showdown/commit/542194e))
* **headerLevelStart:** fix for NaN error when specifying a non number as headerLevelStart param ([be72b487](http://github.com/showdownjs/showdown/commit/be72b487))
* **headerLevelStart:** add support for setting the header starting level ([b84ac67d](http://github.com/showdownjs/showdown/commit/b84ac67d), closes [#69](http://github.com/showdownjs/showdown/issues/69))
* **image dimensions:** add support for setting image dimensions within markdown syntax ([af82c2b6](http://github.com/showdownjs/showdown/commit/af82c2b6), closes [#143](http://github.com/showdownjs/showdown/issues/143))
* **noHeaderId:** add option to suppress automatic generation of ids in headers ([7ac893e9](http://github.com/showdownjs/showdown/commit/7ac893e9))
* **showdown.getDefaultOptions:** add method to retrieve default global options keypairs ([2de53a7d](http://github.com/showdownjs/showdown/commit/2de53a7d))
* Deprecates `showdown.extensions` property. To migrate, extensions should use the new method `showdown.extension(<ext name>, <extension>)` to register.
For more information on the new extension loading mechanism, please check the wiki pages.
- add unique id prefix and suffix to headers ([c367a4b9](http://github.com/showdownjs/showdown/commit/c367a4b9), closes [#81](http://github.com/showdownjs/showdown/issues/81), [#82](http://github.com/showdownjs/showdown/issues/82))
* **options.omitExtraWLInCodeBlocks:** fix for options.omitExtraWLInCodeBlocks only applying in gitHub flavoured code b ([e6f40e19](http://github.com/showdownjs/showdown/commit/e6f40e19))
* **showdown:** fix for options merging into globalOptions ([ddd6011d](http://github.com/showdownjs/showdown/commit/ddd6011d), closes [#153](http://github.com/showdownjs/showdown/issues/153))
The system, however, is not final and will probably be changed until the final version([0fd10cb] (http://github.com/showdownjs/showdown/commit/0fd10cb))
* **allowBlockIndents:** indented inline block elements can now be parsed as markdown ([f6326b84](http://github.com/showdownjs/showdown/commit/f6326b84))
* **omitExtraWLInCodeBlocks:** add option to omit extra newline at the end of codeblocks ([141e3f5](http://github.com/showdownjs/showdown/commit/141e3f5))
* **prefixHeaderId:** add options to prefix header ids to prevent id clash ([141e3f5](http://github.com/showdownjs/showdown/commit/141e3f5))
* **extensions:** showdown extensions were removed from core package and now live in their own repository. See the [project's github page](https://github.com/showdownjs) for available extensions