upstream gstreamer?

upstream gstreamer is now 1.14. gstreamer on 28.2 is 1.8.3. Is there any know reason upstream gstreamer cannot be used? Lots of bug fixes and a few interesting features. Any chance of getting updated nvcamerasrc, nvvidconv and other elements soon?

<b>News - GStreamer 1.14.0 new major stable release</b>
The GStreamer team is proud to announce a new major feature release of your favourite cross-platform multimedia framework!

The 1.14 release series adds new features on top of the previous 1.12 series and is part of the API and ABI-stable 1.x release series of the GStreamer multimedia framework.


<b>WebRTC support: real-time audio/video streaming to and from web browsers</b>
Experimental support for the next-gen royalty-free AV1 video codec
Video4Linux: encoding support, stable element names and faster device probing
Support for the Secure Reliable Transport (SRT) video streaming protocol
RTP Forward Error Correction (FEC) support (ULPFEC)
RTSP 2.0 support in rtspsrc and gst-rtsp-server
ONVIF audio backchannel support in gst-rtsp-server and rtspsrc
playbin3 gapless playback and pre-buffering support
<b>tee, our stream splitter/duplication element, now does allocation query aggregation which is important for efficient data handling and zero-copy</b>
<b>QuickTime muxer has a new prefill recording mode that allows file import in Adobe Premiere and FinalCut Pro while the file is still being written</b>.
rtpjitterbuffer fast-start mode and timestamp offset adjustment smoothing
souphttpsrc connection sharing, which allows for connection reuse, cookie sharing, etc.
nvdec: new plugin for hardware-accelerated video decoding using the NVIDIA NVDEC API
<b>Adaptive DASH trick play support</b>
ipcpipeline: new plugin that allows splitting a pipeline across multiple processes
Major gobject-introspection annotation improvements for large parts of the library API
GStreamer C# bindings have been revived and seen many updates and fixes
The externally-maintained GStreamer Rust bindings have many usability improvements and cover most of the API now

We have instructions for building 1.12.4 in

Still check and evaluate 1.14.x