• Update pyparsing requirement from ~=2.0 to >=2,<4 (@ecederstrand) [#296]
• Fixes for dict substitution (@USSX-Hares) [#292]
• Fix: Tests on Windows (@USSX-Hares) [#291]
• Fix broken overrides (@afanasev) [#287]

• Resolve namespace package (@yifeitao) [#264]
• Update pyparsing requires lock to be more strict [#275]

• Adding the resolve method to resolve substitution keys in 1 config tree with another config tree (@borissmidt) [#266]
• Support serializing timedelta and relativedelta to string (hocon, json etc.) (@gabis-precog) [#263]
• Upgrade to GitHub-native Dependabot (@dependabot-preview) [#260]
• Process substitution overrides in order (@JettJones) [#257]
• Fix duration parsing in lists (@olii) [#255]
• Add support for Python 3.9 and fix deprecation warning (@olii) [#254]

https://github.com/chimpler/pyhocon/pull/247

• fix include error with chinese strings (@xinghaixu) [#240]
• Glob-pattern Includes (@USSX-Hares) [#236]
• Fix parsing of durations/periods (@olii) [#237]
• Fix config_parser.py docstrings (@LysanderGG) [#235]

• Add test for include substitution (@gpoulin) [#217]
• Fix self references when environment variables exist (@anujkumar93) [#219]
• Remove inactive Gitter channel from README (@scottj97) [#255]
• Fix STR_SUBSTITUTION, because ConfigSubstitution has no function raw_str (@manso92) [#227]
• Add support for package include (@mrijken) [#228]
• Fix required(file()) syntax (@jrouly) [#229]

• Fix self references when environment variables exist (@anujkumar93) [#219]

• Fix JSON and HOCON string escaping (@dtarakanov1) [#209]

• Added partial implementation of hocon duration and period recommended api (@gabis-precog) [#199]

• Do not unquote keys containing special characters (@Tommassino) [#198]

• Return None instead of NoneValue when using items() method (@roee-allegro) [#196]
• Add context for changing default chars to avoid conflict with other dependencies using pyparsing (@chunyang-wen) [#195]

• Support conversion of numerically-index objects to arrays (a.1 = 4) (@lune-sta) [#189]
• Handle ConfigValues and ConfigSubstitution in HOCONConverter.to_hocon (@ChristopheDuong) [#192]
• Fix raising of ConfigException for get_int() and get_float() (@ElkMonster) [#188]
• Fixed Flake8 error for Python 2.7

• Fixed negative integer parsing [#185]

• Fixed forbidden characters (@sambible) [#184]

• Fixed scientific notation parsing (@chunyang-wen) [#177]

• Escape backslash (@roee-allegro) [#173]
• Fixed incorrect config merge (@aalba6675) [#170]

• Support slash character / in keys (@richard534) [#166]

• Added resolve option to with_fallback (@afanasev) [#164]
• Allow unresolved substitution to use default string or substitution string (e.g., ${abc}) [#163]

• Fixed escaped quotes inside quoted and unquoted string (@darthbear) [#158]

• Fix non-root ConfigTree merge onto root ConfigTree (@aalba6675) [#156]
• Unresolved optional substitutions work with config merging (@aalba6675) [#153]

• Fixed self ref substitution (@aalba6675) [#142]
• Fixed with_fallback to not mutate config (@aalba6675) [#143]
• Fixed self reference (@aalba6675) [#146]
• Fixed complex substitutions (@aalba6675) [#148]
• Support attribute path a.b.c. (@chunyang-wen) [#150]
• Updated python version (@hugovk) [#151]

• Added compact option for hocon output. #129
• Unicode fix for unquoted strings. #130

• Dropped support for Python 2.6 (wheel)
• Fixed get_xxx() methods to return None if the value is None. PR [#128]
• Added required includes. PR[#127]
• Config tree fix for pop. PR[#126]
• Handle None value for converting methods. PR[#124]
• ConfigTree.pop() should delete key when value == default_value. PR[#123]

• Fixed tripled quoted string parsing bug. PR [#119]
• Added pop() method to ConfigTree and added KeyError to ConfigMissingException. PR [#120]

• Implemented contains method. PR [#108]
• Fixed bug where last line is a comment. PR [#109]

• Fixed some error handling that was unable to deal with unicode keys. PR [#99]
• Fixed Python 2.6 incompatible format string. PR [#100]

• Fix unicode dict key. PR [#94]

• Bug fix for include file. PR [#93]

• Bug fix for variables that start with include-blabla. PR [#92]

• Bug fix for ConfigTree.get_bool(). PR [#90]

• Don't lock pyparsing to a specific version. PR [#86]

• Quoted str ws fix. PR [#85]

• Fixes for self-reference resolution after merging configs. PR [#82]
• Key with dots. PR [#83]

• Implemented self-referential substitutions and +=. PR [#81]

• ConfigValue.transform: do not wrap lists. PR [#76]

• Use recursive merging when concatenating objects. PR [#74]

• Handle unreachable URL include. PR [#73]

• Bumped pycparsing to 2.1.1. PR [#72]

• Fixed from_dict. PR [#71]

• Updated pycparsing to 2.1.0. PR [#70]

• Fixed unresolved optional substitution logic. PR[#69]

• Bumped pyparsing from 2.0.3 to 2.0.6. PR[#68]

• Bugfix for nested substitution failure. PR[#64]

• Support \r and no eol on last line. PR[#61]

• Added ConfigTree.merge_configs(). PR[#57]
• Fixed substitution with spaces PR[#59]

• Added argparse as a dependency if being installed on Python 2.6. PR[#54]

• Fixed dictionary substitution merge. PR[#52]

• Fixed list merge. PR[#51]

• Added default indent to 2. PR[#47]
• Fix dotted notation merge. PR[#49]

• Backward compatibility with imports

• Added from_dict to convert a dict or ordered dict into a config tree. PR[#42]

• Fix multi line string (don't escape). PR[#41]
• Added HOCON export. PR[#40]

• Added with_fallback method. PR[#38]

• Added with_fallback method. PR[#37]

• Fixed substitutions to be evaluated after all files are loaded. PR[#36]

• Fixed substitutions that are overridden later on by a non substitution. PR[#34]
• Added logging. PR[#30] and PR[#31]

• Fixed optional substitution when overriding elements at the same level. PR[#28]
• Silent IOErrors when including nonexistent files. PR[#24]
• Fixed when assign key to a value, list or dict that starts with eol. PR[#22]

Version 0.3.2

• implemented optional substitution (e.g., ${?abc}) and fixed substitution logic when having dict merge. PR[#20]

Version 0.3.1

• can specify default value in get, get_int, ... PR[#17]

Version 0.3.0

• fixed list of dict merge and includes in list. PR [#16]

Version 0.2.9

• fixed expression assignment (only dictionaries with no concat can omit the : or = sign). PR [#15]

Version 0.2.8

• fixed parse_URL

Version 0.2.7

• fixed dict merge. PR [#14]

Version 0.2.6

• fixed string substitutions. PR [#13]

Version 0.2.5

• added list and dict inheritance. PR [#11]

Version 0.2.4

• added python 2.6 support. PR [#8]

Version 0.2.3

• fixed bug when we insert None values that shouldn't raise an exception when getting them. PR [#7]

Version 0.2.2

• simplified code (ConfigTree extends OrderedDict) and other features. PR [#6]