# Changelog

## \[11.8.1] - 2026-08-06

* Fixed RTMP ingest failing with "stream not found" against servers that only offer the stream as live

## \[11.8.0] - 2026-07-29

* Added Dolby Atmos encoding
* Added Dolby Vision Profile 8.1 output
* Fixed language tags in HLS manifests not following the standard (e.g. `en` should be used instead of `eng`)
* Fixed HLS SDR variants missing the video range declaration that players require when HDR variants are also offered
* Changed an ingest that connects but sends no data to be treated the same as an ingest that does not connect: the channel stays in the waiting state instead of showing an error, and stops after the ingest timeout

## \[11.7.2] - 2026-07-22

* Fixed MPEG-TS ingests failing when the initial PMT does not announce all tracks yet (e.g. audio only), which are completed by a later PMT update

## \[11.7.1] - 2026-07-13

* Fixed the S3 DVR and VOD root manifests being written without video codecs in `CODECS` at stream start

## \[11.7.0] - 2026-07-13

* Added an HLS `SCORE` attribute so players prefer H.265 renditions over H.264 when they can decode them
* Added support for DVB-TTML on ingests to generate captions for distribution
* Added the ability to auto-generate captions and translations
* Fixed HLS variants referencing a `CLOSED-CAPTIONS` group when no captions are configured
* Fixed various HLS DVR issues with channels stopping and starting with ABR ladder changes in between
* Fixed an issue where the stream would be stuck on large DTS jumps in the ingest

## \[11.5.2] - 2026-07-01

* Fixed ingest failing for high-bit-depth or 4:2:2 sources (e.g. H.264 High 4:2:2 10-bit)

## \[11.5.1] - 2026-06-17

* Enabled the PlayReady key system by default

## \[11.5.0] - 2026-06-16

* Added BT.709 SDR to HDR10 conversion following the Dolby + MovieLabs best practices
* Carried custom in-stream metadata as ID3
* Exposed the active codec in the CMSD header
* Added `CODECS` attribute to the HLS multivariant playlist
* Added support for H.265 HLS
* Added support for NVIDIA (NVENC) hardware encoding / decoding
* Fixed duplicate per-frame closed-caption SEI when encoding below the source frame rate
* Fixed SCTE-35 segmentation descriptor parsing failing when optional sub-segment fields are absent
* Fixed Nielsen ID3 `emsg` event duration
* Stopped the engine going into Error state when the ingest is not available yet

## \[11.4.0] - 2026-06-08

* Added support for single ingest
* Fixed metric updates lagging behind and being dropped
* Fixed the bitrate metric being reported too high
* Fixed metrics stopping permanently after an interruption

## \[11.3.0] - 2026-05-19 (unavailable)

* Added `targetBuffer` to HESP manifest
* Added `holdBack` to HLS media playlists
* Added support for packaging multiple frames per chunk in HESP
* Added support for SEI metadata to EMSG metadata conversion
* Added support for single ingest
* Added margin to bandwidth in HESP manifest

## \[11.1.0] - 2026-04-20

* Added support for PlayReady
* Added support for DRM with both CENC and CBCS encryption

## \[11.0.0] - 2026-04-07

* Fixed MPEG-TS HLS not returning 404 when sub playlists do not exist yet

## \[10.13.0] - 2026-03-31

* Added image overlay support
* Fixed MPEG-TS HLS not returning 404 when sub playlists do not exist yet

## \[10.12.1] - 2026-03-26

* Made protection optional in the HESP manifest instead of returning an empty one when no DRM is configured

## \[10.12.0] - 2026-03-06

* Allowed enabling / disabling of individual protocols
* Optimized encode of HLS when HESP is disabled
* Improved quality of de-interlacing
* Improved quality of video scaler
* Disabled PlayReady

## \[10.9.0] - 2026-01-30

* Initial changelog