v4.3.2

• colour mismatch with jpeg video and html5 client (don't use YUV input): a88e1e6
• missing auto-refresh: f2dfe3d
• support CUDA 11.6 and all targets: 654a9e9 + a3a816d + ce1d496, compile using C++11 acc2f53
• 'mode' warnings on desktop upgrade: b4e4c19 + f763b10
• detect what type of session to 'upgrade' automatically: 955882b
• 'Content-Security-Policy' fixes and workarounds for Safari: 60f69da
• None value errors with bencode clients: c7bdd16
• honour http path in websocket client connections: 7806a96 - see apache proxy example
• correctly restore original MacOS environment for subcommands: 6d73648
• better tracking of pointer grabs: bca8d1d
• try harder to find matching unicode keys with MS Windows clients: 54a21ae + 8155249
• advertise that we support _NET_WM_OPAQUE_REGION: 156e6a5
• avoid pidfile warning when showing encoding help: d901a6d
• don't use x264 encoder for source data with an alpha channel: c2b65e5
• do handle alpha with the new 'jpega' video encoder: 0faf2f6
• handle clipboard data sent using strings (ie: some MS Windows clients): a93b8ce
• file transfer errors with legacy packet encoders: 96d23e4
• client file upload size warning triggered a formatting error: 916ee15
• enable video subregion by default (fix for HTML5 clients): e10befa
• always initialise the window source fully when the window is mapped: f9ee780
• cython csc regression: 9e3ab03
• disable vaapi with the ffmpeg encoder (crashy): d5fc406