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## 2020d
### Zone Changes
* Update some Canadian zones as follows ([#90](https://github.com/evansiroky/timezone-boundary-builder/issues/90))
* Use OSM timezone relations in entirety for the following zones: `America/Blanc_Sablon`, `America/Glace_Bay`, `America/Halifax`, `America/Swift_Current`, `America/Toronto`
* Add disputed area along Northwest Bhutan-China border.
* Manually add back the Jungholz Village to `Europe/Vienna` ([#93](https://github.com/evansiroky/timezone-boundary-builder/issues/93)).
* Update to latest OSM data
### Other Changes
* Switch command line flag processing to use the yargs library. Existing flags have changed: ``--no-validation` and ``--filtered-zones` have been renamed to ``--skip_validation` and `--included_zones` respectively. `--included_zones` now takes a list without quotes or commas.
* Addition of new flags: `--excluded_zones`, `--dist_dir`, `--downloads_dir`, `--skip_analyze_diffs`, `--skip_shapefile`, `--skip_zip`. See `--help` and README.md for details.
* Remove unneeded downloaded files from downloads directory before creating input data zipfile ([#82](https://github.com/evansiroky/timezone-boundary-builder/issues/82)).
* Junk directory names when zipping data for releases
* Add ability to generate a difference of the zone boundaries between the current config and the latest release. ([#83](https://github.com/evansiroky/timezone-boundary-builder/issues/83)).
## 2020a
### Zone Changes
* Allow timezones `Asia/Tbilisi` and `Europe/Moscow` to overlap
* Rename `America/Godthab` to `America/Nuuk` ([#77](https://github.com/evansiroky/timezone-boundary-builder/issues/77))
* Update some Canadian zones as follows ([#76](https://github.com/evansiroky/timezone-boundary-builder/issues/76))
* Make Listuguj part of `America/Halifax` instead of `America/Moncton`
* Make `America/Nipigon` comprise of most of mid-Ontario. _Credit to OSM user [Arctic gnome](https://www.openstreetmap.org/user/Arctic%20gnome) for OSM edits._
* Make `America/Rainy_River` comprise of the Westernmost parts of Ontario bordering Manitoba. _Credit to OSM user [Arctic gnome](https://www.openstreetmap.org/user/Arctic%20gnome) for OSM edits._
* Split Northwest Territories timezones (`America/Inuvik` and `America/Yellowknife`) in two using 120th meridian
* Make `America/Swift_Current` comprise of all areas in southwest Saskatchewan between the `America/Regina` and `America/Edmonton` timezones.
* Split Yukon timezones (`America/Dawson` and `America/Whitehorse`) in two using 138th meridian
* Update to latest OSM data
### Other Changes
* Update packages to latest versions
* Include input data in release files ([#78](https://github.com/evansiroky/timezone-boundary-builder/issues/78))
## 2019b
### Zone Changes
* Update to latest OSM data
### Other Changes
* Include JSON list of timezone names in each release ([#69](https://github.com/evansiroky/timezone-boundary-builder/issues/69))
* Improve troubleshooting wiki by adding demo video on fixing broken relations ([#68](https://github.com/evansiroky/timezone-boundary-builder/issues/68))
## 2019a
### Zone Changes
* Split Vietnam into 2 zones ([#66](https://github.com/evansiroky/timezone-boundary-builder/issues/66))
* Make Northern Vietnam be a part of `Asia/Bangkok`
* Southern Vietnam stays `Asia/Ho_Chi_Minh`
* Make Bir Tawil area be a part of `Africa/Cairo` instead of being a part of `Africa/Khartoum`.
* Update to latest OSM data
### Other Changes
* Add standard linter ([#67](https://github.com/evansiroky/timezone-boundary-builder/issues/67))
## 2018i
### Zone Changes
* Make territories of Taiwan take precedence when they overlap Chinese-claimed territories. ([#52](https://github.com/evansiroky/timezone-boundary-builder/issues/52))
* Add Oslo Accords Area B and C to `Asia/Jerusalem`. ([#53](https://github.com/evansiroky/timezone-boundary-builder/issues/53))
* Create new zone `Asia/Qostanay` by taking area from `Asia/Qyzylorda`. ([#59](https://github.com/evansiroky/timezone-boundary-builder/issues/59))
* Change timezone for Antarctic Station Neumayer III Station from `Europe/Berlin` to `Etc/UTC`. ([#61](https://github.com/evansiroky/timezone-boundary-builder/issues/61))
* Update to latest OSM data
### Other Changes
* Add some badges to the README
* Add progress stats reporting
* Update to use Node 10 ([#56](https://github.com/evansiroky/timezone-boundary-builder/issues/56))
## 2018g
### Zone Changes
* Switch geometries of `America/Danmarkshavn` and `America/Scoresbysund` ([#40](https://github.com/evansiroky/timezone-boundary-builder/issues/40))
* Add timezones in Antarctica ([#42](https://github.com/evansiroky/timezone-boundary-builder/issues/42))
* Fix northern border of `America/Argentina/Rio_Gallegos` ([#46](https://github.com/evansiroky/timezone-boundary-builder/issues/46))
* Allow timezone boundaries to overlap. ([#41](https://github.com/evansiroky/timezone-boundary-builder/issues/41))
* This change now means that the following zones overlap:
* `Africa/Juba`, `Africa/Khartoum`
* `America/Argentina/Rio_Gallegos`, `America/Punta_Arenas`
* `America/La_Paz`, `America/Porto_Velho`
* `America/Moncton`, `America/New_York`
* `Asia/Hebron`, `Asia/Jerusalem`
* `Asia/Ho_Chi_Minh`, `Asia/Manila`
* `Asia/Ho_Chi_Minh`, `Asia/Shanghai`
* `Asia/Manila`, `Asia/Shanghai`
* `Asia/Shanghai`, `Asia/Taipei`
* `Asia/Shanghai`, `Asia/Urumqi`
* `Europe/Amsterdam`, `Europe/Berlin`
* `Europe/Belgrade`, `Europe/Zagreb`
* `Europe/Berlin`, `Europe/Luxembourg`
* `Europe/Paris`, `Europe/Rome`
* Add disupted area near Doklam to `Asia/Shanghai` and `Asia/Thimphu` ([#49](https://github.com/evansiroky/timezone-boundary-builder/issues/49))
* Update boundaries of `America/Creston` and `America/Edmonton` to reflect changes in OpenStreetMap
* Update to latest OSM data
### Other Changes
* Added more libraries to list of lookup libraries using this project's data
* Fixed overpass querying ([#43](https://github.com/evansiroky/timezone-boundary-builder/issues/43))
## 2018d
### Zone Changes
* Add timezones in the oceans ([#34](https://github.com/evansiroky/timezone-boundary-builder/issues/34))
* Shapefiles and geojson are now outputted as with or without oceans
* Fix Viedma Glacier are to reflect latest OSM boundaries
* Update to latest OSM data
### Other Changes
* Better debugging
* Printing Overpass query for when no data is received.
* Using geojsonhint and writing problematic geojson to a pretty-printed file.
* Save validation overlaps to file.
* Add links to troubleshooting wiki for common errors.
* Update README
* Add list of geographical lookup libraries
* Add troubleshooting wiki
## 2017c
### Zone Changes
* Refactor of timezones in China ([#13](https://github.com/evansiroky/timezone-boundary-builder/issues/13))
* Integration of areas formerly found in Asia/Chongqing, Asia/Harbin and Asia/Kashgar into other zones
* Expansion of Asia/Shanghai to all of China except Xinjiang
* Asia/Urumqi is now comprised of Xinjiang
* Fix Mexico Beach, FL by moving it to central time ([#20](https://github.com/evansiroky/timezone-boundary-builder/issues/20))
* Make Viedma glacier area work with updated OSM boundaries
* Remove small holes and reduce geojson precision. ([#11](https://github.com/evansiroky/timezone-boundary-builder/issues/11) and [#17](https://github.com/evansiroky/timezone-boundary-builder/issues/17))
* Remove zones found in backward file of timezone db ([#16](https://github.com/evansiroky/timezone-boundary-builder/issues/16))
* America/Coral_Harbour now integrated into America/Atikokan
* America/Montreal now integrated into America/Toronto
* See notes on China refactor for changes to Asia/Chongqing, Asia/Harbin, Asia/Kashgar, Asia/Shanghai and Asia/Urumqi
* Asia/Rangoon renamed to Asia/Yangon
* Pacific/Yap integrated into Pacific/Chuuk
* Pacific/Johnston integrated into Pacific/Honolulu
* Refactor arbitrary sea boundaries of timezones in the Gulf of St Lawrence to account for updated OSM geometry of the boundary of Quebec.
* Add Page, AZ to America/Phoenix ([#9](https://github.com/evansiroky/timezone-boundary-builder/issues/9))
* Update to latest OSM data
### Other Changes
* Add linting of json files
* A overpass source listed in timezones.json must have a corresponding definition in osmBoundarySources.json
* A overpass source defined in osmBoundarySources.json must be used in at least one operation in timezones.json
* A manual-polygon or manual-multipolygon defined in timezones.json must be accompanied with a description.
* Add ability to build only certain zones in builder script
* Add travis-ci builds that require linting script to pass
* Added descriptions to manual geometries
* Add ability to use overpass to fetch ways that represent boundaries
* Rewrite README
## 2017a
* Zone Changes
* Add new zone America/Punta_Arenas by taking area from America/Santiago
* Move the boundary of America/New_York and America/Chicago in the region of various towns in Alabama such as Phenix City to the west to include these towns in America/New_York
* Implement own interpretation of border of America/Chicago and America/Denver in the following places:
* Move boundary to the east of ND Highway 31 in Sioux county, ND
* Move diagonal boundary through Stanley County, SD northwest so it doesn't go through the middle of Fort Pierre
* Update to latest OSM data
* Other changes
* Add picture of zones to README
## 2016j
- Zone Changes
- Add new zone Asia/Atyrau by taking area from Asia/Aqtau
- Add new zone Europe/Saratov by taking area from Europe/Volgograd
- Update to latest OSM data
- Other changes
- README updates
## 2016i
- Zone Changes
- Split Cyprus into 2 zones. The existing Asia/Nicosia now ends at
the northern boundary of the United Nations Buffer Zone and the new
zone Asia/Famagusta contains everything north of the buffer zone.
- Add missing data definitions: Congo-Kinshasa and South Sudan
- Old Crimea boundary no longer exists in OSM, use combination of
Crimea + Sevastopol
- Typo of extra space in Harrison County fixed in OSM
- Taishan City now has invalid geometry in OSM, use Xinhui district
instead when making boundaries
- Update to latest OSM data
- Other changes
- Add download throttling of publicly available Overpass API
- Remove old dist files if they exist so ogr2ogr can work
- Update README to note change in Overpass API querying
## 2016d
First data release of the project.
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