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This PR will...

  • Merge new Date Ranges in Playlist Delta Updates when last details have no Date Ranges or previous Date Ranges were removed
  • Use program date time carried over to last segment when no segments with rawProgramDateTime (#EXT-X-PROGRAM-DATE-TIME references) remain in playlist history

Why is this Pull Request needed?

Handles Live HLS Playlist Delta Updates containing no #EXT-X-PROGRAM-DATE-TIME and periods with no Date Ranges or Date Range turnover (all old tags removed before adding new ones).

Are there any points in the code the reviewer needs to double check?

Resolves issues:

Fixes #7461

Checklist

  • changes have been done against master branch, and PR does not conflict
  • new unit / functional tests have been added (whenever applicable)
  • API or design changes are documented in API.md

@robwalch robwalch added this to the 1.6.10 milestone Aug 13, 2025
@robwalch robwalch merged commit e3c4f1d into master Aug 14, 2025
49 of 52 checks passed
@robwalch robwalch deleted the bugfix/daterange-delta-updates branch August 14, 2025 16:01
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Successfully merging this pull request may close these issues.

New Dateranges in HLS Delta Update not parsed
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