+- deblock filter
+- tmix filter
+- amplify filter
+- fftdnoiz filter
+- aderivative and aintegral audio filters
+- pal75bars and pal100bars video filter sources
+- support mbedTLS based TLS
+- adeclick filter
+- adeclip filter
+- libtensorflow backend for DNN based filters like srcnn
+- vc1 decoder is now bit-exact
+- ATRAC9 decoder
+- lensfun wrapper filter
+- colorconstancy filter
+- AVS2 video decoder via libdavs2
+- IMM4 video decoder
+- Brooktree ProSumer video decoder
+- MatchWare Screen Capture Codec decoder
+- WinCam Motion Video decoder
+- 1D LUT filter (lut1d)
+- RemotelyAnywhere Screen Capture decoder
+- cue and acue filters
+- support for AV1 in MP4
+- transpose_npp filter
+- AVS2 video encoder via libxavs2
+- amultiply filter
+- Block-Matching 3d (bm3d) denoising filter
+- acrossover filter
+- ilbc decoder
+- audio denoiser as afftdn filter
+- AV1 parser
+
+
+version 4.0: