--- /dev/null
+HISTORY
+=======
+
+current master
+ * I am working on new features to align with handlebars 4.0.4. Thanks for the new <a href="https://github.com/jbboehr/handlebars-spec">handlebars-spec</a>. You may go to the <a href="https://github.com/zordius/lightncandy/tree/v0.89-develop">v0.89-develop</a> branch to check the progress.
+
+v0.23 https://github.com/zordius/lightncandy/tree/v0.23
+ * align with handlebars.js 3.0.3
+ * b194f37430 support `{{{{rawblock}}}} ... {{{{/rawblock}}}}` when FLAG_RAWBLOCK enabled
+ * 927741a07c add `prePartial()` static method and `prepartial` compile option for extendibility
+ * f9f41277d7 support private variable injection from handlebars custom block helpers
+ * 850dcd7082 fix `{{!-- --}}` bug when it inside a partial
+ * edb486ac87 fix support for nested raw block
+
+v0.22 https://github.com/zordius/lightncandy/tree/v0.22
+ * align with handlebars.js 3.0.3
+ * 1d1e8829cb fix `{{foo bar=(tee_taa "hoo")}}` parsing issue
+ * 9bd994ee94 fix JavaScript function in runtime partial be changed bug
+ * a514e4652e fix `{{#foo}}` issue when foo is an empty ArrayObject
+
+v0.21 https://github.com/zordius/lightncandy/tree/v0.21
+ * align with handlebars.js 3.0.3
+ * 9f24268d57 support FLAG_BARE to remove PHP start/end tags
+ * 60d5a46c55 handle object/propery merge when deal with partial
+ * d0130bf7e5 support undefined `{{helper undefined}}`
+ * 8d228606f7 support `lcrun` to use customized render library when compile()
+ * d0bad115f0 remove tmp PHP file when prepare() now
+ * d84bbb4519 support keeping tmp PHP file when prepare()
+ * ee833ae2f8 fix syntax validator bug on `{{helper "foo[]"}}`
+ * 30b891ab28 fix syntax validator bug on `{{helper 'foo[]'}}`
+ * 1867f1cc37 now count subexpression usage correctly
+ * 78ef9b8a89 new syntax validator on handlebars variable name
+
+v0.20 https://github.com/zordius/lightncandy/tree/v0.20
+ * align with handlebars.js 3.0.0
+ * 3d9a557af9 fix `{{foo (bar ../abc)}}` compile bug
+ * 7dc16ac255 refine custom helper error detection logic
+ * 72d32dc299 fix subexpression parsing bug inside `{{#each}}`
+ * d1f1b93130 support context access inside a hbhelper by `$options['_this']`
+
+v0.19 https://github.com/zordius/lightncandy/tree/v0.19
+ * align with handlebars.js 3.0.0
+ * 5703851e49 fix `{{foo bar=['abc=123']}}` parsing bug
+ * 7b4e36a1e3 fix `{{foo bar=["abc=123"]}}` parsing bug
+ * c710c8349b fix `{{foo bar=(helper a b c)}}` parsing bug
+ * 4bda1c6f41 fix subexpression+builtin block helper (EX: `{{#if (foo bar)}}`) parsing bug
+ * 6fdba10fc6 fix `{{foo ( bar) or " car" or ' cat' or [ cage]}}` pasing bug
+ * 0cd5f2d5e2 fix indent issue when custom helper inside a partial
+ * 296ea89267 support dynamic partial `{{> (foo)}}`
+ * f491d04bd5 fix `{{../foo}}` look up inside root scope issue
+ * 38fba8a5a5 fix scope issue for hbhelpers
+ * a24a0473e2 change internal variable structure and fix for `{{number}}`
+ * 7ae8289b7e fix escape in double quoted string bug
+ * 90adb5531b fix `{{#if 0.0}}` logic to behave as false
+ * 004a6ddffe fix `{{../foo}}` double usage count bug
+ * 9d55f12c5a fix subexpression parsing bug when line change inside it
+
+v0.18 https://github.com/zordius/lightncandy/tree/v0.18
+ * align with handlebars.js 2.0.0
+ * 7bcce4c1a7 support `{{@last}}` for `{{#each}}` on both object and array
+ * b0c44c3b40 remove ending \n in lightncandy.php
+ * e130875d5a support single quoted string input: `{{foo 'bar'}}`
+ * c603aa39d8 support `renderex` to extend anything in render function
+ * f063e5302c now render function debug constants works well in standalone mode
+ * 53f6a6816d fix parsing bug when there is a `=` inside single quoted string
+ * 2f16c0c393 now really autoload when installed with composer
+ * c4da1f576c supports `{{^myHelper}}`
+
+v0.17 https://github.com/zordius/lightncandy/tree/v0.17
+ * align with handlebars.js 2.0.0
+ * 3b48a0acf7 fix parsing bug when FLAG_NOESCAPE enabled
+ * 5c774b1b08 fix hbhelpers response error with options['fn'] when FLAG_BESTPERFORMANCE enabled
+ * c60fe70bdb fix hbhelpers response error with options['inverse'] when FLAG_BESTPERFORMANCE enabled
+ * e19b3e3426 provide options['root'] and options['_parent'] to hbhelpers
+ * d8a288e83b refine variable parsing logic to support `{{@../index}}`, `{{@../key}}`, etc.
+
+v0.16 https://github.com/zordius/lightncandy/tree/v0.16
+ * align with handlebars.js 2.0.0
+ * 4f036aff62 better error message for named arguments
+ * 0b462a387b support `{{#with var}}` ... `{{else}}` ... `{{/with}}`
+ * 4ca624f651 fix 1 ANSI code error
+ * 01ea3e9f42 support instances with PHP __call magic funciton
+ * 38059036a7 support `{{#foo}}` or `{{#each foo}}` on PHP Traversable instance
+ * 366f5ec0ac add FLAG_MUSTACHESP and FLAG_MUSTACHEPAIN into FLAG_HANDLEBARS and FLAG_HANDLEBARSJS now
+ * b61d7b4a81 align with handlebars.js standalone tags behavior
+ * b211e1742e now render false as 'false'
+ * 655a2485be fix bug for `{{helper "==="}}`
+ * bb58669162 support FLAG_NOESCAPE
+
+v0.15 https://github.com/zordius/lightncandy/tree/v0.15
+ * align with handlebars.js 2.0.0
+ * 4c750806e8 fix for `\` in template
+ * 12ab6626d6 support escape. `\{{foo}}` will be rendered as is. ( handlebars spec , require FLAG_SLASH )
+ * 876bd44d9c escape ` to &#x60; ( require FLAG_JSQUOTE )
+ * f1f388ed79 support `{{^}}` as `{{else}}` ( require FLAG_ELSE )
+ * d5e17204b6 support `{{#each}}` == `{{#each .}}` now
+ * 742126b440 fix `{{>foo/bar}} partial not found bug
+ * d62c261ff9 support numbers as helper input `{{helper 0.1 -1.2}}`
+ * d40c76b84f support escape in string arguments `{{helper "test \" double quote"}}`
+ * ecb57a2348 fix for missing partial in partial bug
+ * 1adad5dbfa fix `{{#with}}` error when FLAG_WITH not used
+ * ffd5e35c2d fix error when rendering array value as `{{.}}` without FLAG_JSOBJECT
+ * bd4987adbd support changing context on partial `{{>foo bar}}` ( require FLAG_RUNTIMEPARTIAL )
+ * f5decaa7e3 support name sarguments on partial `{{>foo bar name=tee}}` . fix `{{..}}` bug
+ * c20bb36457 support `partials` in options
+ * e8779dbe8c change default `basedir` hehavior, stop partial files lookup when do not prodive `basedir` in options
+ * c4e3401fe4 fix `{{>"test"}}` or `{{>[test]}}` or `{{>1234}}` bug
+ * e59f62ea9b fix seciton behavior when input is object, and add one new flag: FLAG_MUSTACHESEC
+ * 80eaf8e007 use static::method not self::method for subclass
+ * 0bad5c8f20 fix usedFeature generation bugs
+
+v0.14 https://github.com/zordius/lightncandy/tree/v0.14
+ * align with handlebars.js 2.0.0-alpha.4
+ * fa6225f278 support boolen value in named arguments for cusotm helper
+ * 160743e1c8 better error message when unmatch `{{/foo}}` tag detected
+ * d9a9416907 support `{{&foo}}`
+ * 8797485cfa fix `{{^foo}}` logic when foo is empty list
+ * 523b1373c4 fix handlebars custom helper interface
+ * a744a2d522 fix bad syntax when FLAG_RENDER_DEBUG + helpers
+ * 0044f7bd10 change FLAG_THIS behavoir
+ * b5b0739b68 support recursive context lookup now ( mustache spec , require FLAG_MUSTACHELOOKUP )
+ * 096c241fce support standalone tag detection now ( mustache spec , require FLAG_MUSTACHESP )
+ * cea46c9a67 support `{{=<% %>=}}` to set delimiter
+ * 131696af11 support subexpression `{{helper (helper2 foo) bar}}`
+ * 5184d41be6 support runtime/recursive partial ( require FLAG_RUNTIMEPARTIAL )
+ * 6408917f76 support partial indent ( mustache spec , require FLAG_MUSTACHEPAIN )
+
+v0.13 https://github.com/zordius/lightncandy/tree/v0.13
+ * align with handlebars.js 2.0.0-alpha.4
+ * e5a8fe3833 fix issue #46 ( error with `{{this.foo.bar}}` )
+ * ea131512f9 fix issue #44 ( error with some helper inline function PHP code syntax )
+ * 522591a0c6 fix issue #49 ( error with some helper user function PHP code syntax )
+ * c4f7e1eaac support `{{foo.bar}} lookup on instance foo then property/method bar ( flagd FLAG_PROPERTY or FLAG_METHOD required )
+ * 0f4c0daa4b stop simulate Javascript output for array when pass input to custom helpers
+ * 22d07e5f0f BIG CHANGE of custom helper interface
+
+v0.12 https://github.com/zordius/lightncandy/tree/v0.12
+ * align with handlebars.js 2.0.0-alpha.2
+ * 64db34cf65 support `{{@first}}` and `{{@last}}`
+ * bfa1fbef97 add new flag FLAG_SPVARS
+ * 10a4623dc1 remove json schema support
+ * 240d9fa290 only export used LCRun2 functions when compile() with FLAG_STANDALONE now
+ * 3fa897c98c rename LCRun2 to LCRun3 for interface changed, old none standalone templates will error with newer version
+ * e0838c7418 now can output debug template map with ANSI color
+ * 80dbeab63d fix php warning when compile with custom helper or block custom helper
+ * 8ce6268b64 support Handlebars.js style custom helper
+
+v0.11 https://github.com/zordius/lightncandy/tree/v0.11
+ * align with handlebars.js 2.0.0-alpha.2
+ * a275d52c97 use php array, remove val()
+ * 8834914c2a only export used custom helper into render function now
+ * eb6d82d871 refine option flag consts
+ * fc437295ed refine comments for phpdoc
+ * fbf116c3e2 fix for tailing ; after helper functions
+ * f47a2d5014 fix for wrong param when new Exception
+ * 94e71ebcbd add isset() check for input value
+ * a826b8a1ab support `{{else}}` in `{{#each}}` now
+ * 25dac11bb7 support `{{!-- comments --}}` now (this handlebars.js extension allow `}}` apperas in the comments)
+ * e142b6e116 support `{{@root}}` or `{{@root.foo.bar}}` now
+ * 58c8d84aa2 custom helper can return extra flag to change html encoded behavior now
+
+v0.10 https://github.com/zordius/lightncandy/tree/v0.10
+ * align with handlebars.js 2.0.0-alpha.1
+ * 4c9f681080 file name changed: lightncandy.inc => lightncandy.php
+ * e3de01081c some minor fix for json schema
+ * 1feec458c7 new variable handling logic, save variable name parsing time when render() . rendering performance improved 10~30%!
+ * 3fa897c98c rename LCRun to LCRun2 for interface changed, old none standalone templates will error with newer version
+ * 43a6d33717 fix for `{{../}}` php warning message
+ * 9189ebc1e4 now auto push documents from Travis CI
+ * e077d0b631 support named arguments for custom helpers `{{helper name=value}}`
+ * 2331b6fe55 support block custom helpers
+ * 4fedaa25f7 support number value as named arguments
+ * 6a91ab93d2 fix for default options and php warnings
+ * fc157fde62 fix for doblue quoted arguments (issue #15)
+
+v0.9 https://github.com/zordius/lightncandy/tree/v0.9
+ * align with handlebars.js 1.3
+ * a55f2dd067 support both `{{@index}}` and `{{@key}}` when `{{#each an_object}}`
+ * e59f931ea7 add FLAG_JSQUOTE support
+ * 92b3cf58af report more than 1 error when compile()
+ * 93cc121bcf test for wrong variable name format in test/error.php
+ * 41c1b431b4 support advanced variable naming `{{foo.[bar].10}}` now
+ * 15ce1a00a8 add FLAG_EXTHELPER option
+ * f51337bde2 support space control `{{~sometag}}` or `{{sometag~}}`
+ * fe3d67802e add FLAG_SPACECTL option
+ * 920fbb3039 support custom helper
+ * 07ae71a1bf migrate into Travis CI
+ * ddd3335ff6 support "some string" argument
+ * 20f6c888d7 html encode after custom helper executed
+ * 10a2f45fdc add test generator
+ * ccd1d3ddc2 migrate to Scrutinizer , change file name LightnCandy.inc to LightnCandy.php
+ * 5ac8ad8d04 now is a Composer package
+
+v0.8 https://github.com/zordius/lightncandy/tree/v0.8
+ * align with handlebars.js 1.0.12
+ * aaec049 fix partial in partial not works bug
+ * 52706cc fix for `{{#var}}` and `{{^var}}` , now when var === 0 means true
+ * 4f7f816 support `{{@key}}` and `{{@index}}` in `{{#each var}}`
+ * 63aef2a prevent array_diff_key() PHP warning when `{{#each}}` on none array value
+ * 10f3d73 add more is_array() check when `{{#each}}` and `{{#var}}`
+ * 367247b fix `{{#if}}` and `{{#unless}}` when value is an empty array
+ * c76c0bb returns null if var is not exist in a template [contributed by dtelyukh@github.com]
+ * d18bb6d add FLAG_ECHO support
+ * aec2b2b fix `{{#if}}` and `{{#unless}}` when value is an empty string
+ * 8924604 fix variable output when false in an array
+ * e82c324 fix for ifv and ifvar logic difference
+ * 1e38e47 better logic on var name checking. now support `{{0}}` in the loop, but it is not handlebars.js standard
+
+v0.7 https://github.com/zordius/lightncandy/tree/v0.7
+ * align with handlebarsjs 1.0.11
+ * add HISTORY.md
+ * 777304c change compile format to include in val, isec, ifvar
+ * 55de127 support `{{../}}` in `{{#each}}`
+ * 57e90af fix parent levels detection bug
+ * 96bb4d7 fix bugs for `{{#.}}` and `{{#this}}`
+ * f4217d1 add ifv and unl 2 new methods for LCRun
+ * 3f1014c fix `{{#this}}` and `{{#.}}` bug when used with `{{../var}}`
+ * cbf0b28 fix `{{#if}}` logic error when using `{{../}}`
+ * 2b20ef8 fix `{{#with}}` + `{{../}}` bug
+ * 540cd44 now support FLAG_STANDALONE
+ * 67ac5ff support `{{>partial}}`
+ * 98c7bb1 detect unclosed token now
+
+v0.6 https://github.com/zordius/lightncandy/tree/v0.6
+ * align with handlebarsjs 1.0.11
+ * 45ac3b6 fix #with bug when var is false
+ * 1a46c2c minor #with logic fix. update document
+ * fdc753b fix #each and section logic for 018-hb-withwith-006
+ * e6cc95a add FLAG_PARENT, detect template error when scan()
+ * 1980691 make new LCRun::val() method to normal path.val logic
+ * 110d24f `{{#if path.var}}` bug fixed
+ * d6ae2e6 fix `{{#with path.val}}` when input value is null
+ * 71cf074 fix for 020-hb-doteach testcase
+
+v0.5 https://github.com/zordius/lightncandy/tree/v0.5
+ * 955aadf fix #each bug when input is a hash
+ * final version for following handlebarsjs 1.0.7