https://cinelerra-gg.org/download/CinelerraGG_Manual.pdf
http://g-raffa.eu/Cinelerra/HOWTO/basics.html
.
+2021 October changes of note:
+ Hungarian automated-google translation has been added.
+ Long existing bug when using Fade in/out in the Titler
+ plugin when there is an alpha channel in use is fixed.
+ Added new render formats of Cineform, DPX, and mxf.
+ In AppImage, the plugins are no longer loaded every time.
+2021 September New Features of note:
+ Improvements have been made to the LV2 plugin code that
+ makes it more robust and prevents crashes on startup.
+ Additional 9 Video icons in the Resources window added.
+.
+2021 August New Features of note:
+ FFmpeg has been upgraded to 4.4 to include new plugins.
+ Speed PerCent plugin for easily changing video speed
+ is now available.
+ FAST_SPEED and SLOW_SPEED variables to personalize your
+ playback speed have been added.
+.
+2021 July New Features of note:
+ Libraries x264, x265, and libaom have been upgraded.
+ YUV Colorspace 601 and 2020 have been split into more
+ available options of 601 NTSC/PAL and 2020 NCL/CL.
+.
2021 June New Features of note:
High fps rendering formats added for over 60 fps.
Upgrade of libjpeg-turbo to 2.1.0.