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Changelog.md

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v4.5.3 (07-Nov-2018)

  • Fixed an issue where signature decipherer was throwing an exception due to recent YouTube changes.

v4.5.2 (02-Nov-2018)

  • Fixed an issue where GetVideoAsync was throwing an exception due to recent YouTube changes.

v4.5.1 (24-Oct-2018)

  • Fixed an issue where GetVideoMediaStreamInfosAsync was sometimes returning adaptive streams that were not working. There are very rare cases where it still might happen.

v4.5 (20-Oct-2018)

  • Fixed an issue where external links were truncated in Video.Description if they are too long.
  • Added support for seeking in MediaStream.

v4.4 (20-Oct-2018)

  • Improved GetVideoAsync, GetVideoAuthorChannelAsync and GetVideoClosedCaptionTrackInfosAsync so that they don't fail on unavailable videos.
  • Added extra result validation to GetChannelIdAsync to verify that the extracted value is indeed a valid channel ID.
  • Added static methods to parse and validate YouTube usernames.

v4.3.4 (16-Oct-2018)

  • Fixed an issue where JsonReaderException was thrown on all videos due to recent YouTube changes.
  • Added support for itag 394.
  • Added GetChannelIdAsync method that retrieves channel ID from username.
  • Added support for OL playlists.

v4.3.3 (26-Sep-2018)

  • Added support for AV1 video codec.

v4.3.2 (11-Sep-2018)

  • Fixed an issue where ParseException was thrown on signature-protected videos due to recent YouTube changes.

v4.3.1 (28-Aug-2018)

  • Fixed an issue where retrieving some streams may throw a 403 HTTP error due to recent YouTube changes.

v4.3 (25-Jul-2018)

  • Reworked GetMediaStreamAsync so that it implements the workaround for rate-limited streams, which was originally only available in DownloadMediaStreamAsync. This is achieved by returning a stream that internally sends multiple segmented requests in a sequence.
  • Fixed MediaStream.ReadAsync not using the ReadAsync of the underlying stream.
  • Fixed GetVideoQualityLabel so that it displays the framerate as rounded up to the nearest 10, instead of always displaying it as '60'.

v4.2.8 (14-Jun-2018)

  • Fixed an issue where some non-embeddable videos could not be processed.

v4.2.7 (09-Jun-2018)

  • Fixed an issue where non-embeddable age-restricted videos could not be processed.
  • Fixed exception messages not being shown in Visual Studio's exception popup.
  • Fixed xml docs on Playlist.Type property.

v4.2.6 (09-Jun-2018)

  • Fixed an issue where VideoUnavailableException would always be thrown for non-embeddable videos due to recent YouTube changes.

v4.2.5 (20-May-2018)

  • Relaxed validation rules for all playlist IDs because there are even more variations than expected.

v4.2.4 (02-May-2018)

  • Fixed an issue where GetVideoAuthorChannelAsync would always throw an exception due to recent YouTube changes.

v4.2.3 (22-Apr-2018)

  • Added an extension method to parse MediaStreamInfo.Url expiry date -- MediaStreamInfo.GetUrlExpiryDate.
  • Replaced instances of DateTime with DateTimeOffset.
  • Relaxed validation rules for RD playlist IDs because there are simply too many possible variations.

v4.2.2 (31-Mar-2018)

  • Fixed some playlist IDs being considered invalid even though they aren't.

v4.2.1 (28-Mar-2018)

  • Fixed an OutOfMemoryException issue that would occur when executing GetVideoMediaStreamInfosAsync on a large video.

v4.2 (24-Mar-2018)

  • Added overloads for DownloadMediaStreamAsync and DownloadClosedCaptionTrackAsync that accept Stream as output.
  • Removed IHttpService, HttpService in favor of using unwrapped HttpClient.
  • Added IYoutubeClient to aid in testing.

v4.1.1 (20-Feb-2018)

  • Fixed an issue where GetClosedCaptionTrackAsync would throw on some malformed automatic captions.
  • Fixed an issue where some video qualities were not correctly identified due to itag inconsistency.
  • Added support for 2880p video quality.

v4.1 (02-Feb-2018)

  • Implemented segmented downloading for rate-limited media streams. This fixes slow download speed of DownloadMediaStreamAsync caused by YouTube changes.
  • Added SearchVideosAsync method to YoutubeClient. Can be used to search for videos using given query. The method returns Video objects but not all properties have valid values, due to how this internal API functions.
  • Added HlsLiveStreamUrl to MediaStreamInfoSet which can be used to extract URL of M3U8 playlists for livestream videos.
  • Added UploadDate to Video.
  • Fixed incorrect return value in GetVideoQualityLabel/VideoQualityLabel in cases where FPS was below 60 but above 30.
  • Renamed GetRegularUrl extension methods to GetUrl.
  • Added some useful extension methods for models.
  • Added some ReSharper annotations.

v4.0 (15-Dec-2017)

  • Reworked YoutubeClient API by splitting workflows into separate methods. What was done solely by GetVideoAsync is now done by GetVideoAsync, GetVideoMediaStreamInfosAsync, GetVideoClosedCaptionTrackInfosAsync, GetVideoAuthorChannelAsync.
  • Media stream and closed caption track information is no longer part of the Video model. Extended channel information was also removed.
  • PlaylistVideo has been removed as it now shares the same property set with Video. Existing usages of PlaylistVideo have been replaced with Video.
  • Order of some parameters in Playlist constructor has been changed. Be careful if you initialize it yourself.
  • Removed some properties from Channel that are no longer accessible due to YouTube changes.
  • Exception messages now provide more information, without needing to check inside properties.
  • ValidatePlaylistId and (Try)ParsePlaylistId are now more strict and check the first two characters in the ID as well.
  • Added a lot of useful extensions methods. Refactored some existing methods to extensions.
  • Fixed incompatibility with age-restricted videos due to YouTube changes.
  • Fixed other issues that prevented the library from being usable due to YouTube changes.
  • Added dependency on Newtonsoft.Json and AngleSharp.

This version has a lot of breaking changes and the migration isn't very straightforward. The readme has been updated with new usage examples and demo projects have been changed to work with new API.