1. Support decode after roll stop
2. Support decode hysteresis
3. Support Blackman-Harris and Gaussian window of FFT
4. Support XY split screen display
5. Support movable channel label
6. Support saving measurement statistics results
7. Remote reading acceleration(SERVICE->WAV ACC)

8. Optimize UI
a）Add confirmation dialog for save To Default Key
b）Remove excess zeros in the axis labels
c）When the horizontal axis labels are too long, they will be displayed alternately up and down
d）Use real "µ" instead of small letter "u".

9. Fixed several bugs
a）When Beep enabled, physical buttons beep only until first move of any encoder
b）When the probe is not 1X and the vertical reference is Offset, the zoom area is unreasonable when changing the vertical scale
c）After NTP synchronization time, the history list time is wrong
​d）When the points is ≥10M, FFT has unreasonable spurious signals

1. Solve the problem of trigger holdoff fails.
2. Solve the problem of CAN decoding causing crashes with a small probability.
3. Modify the kernel solve the problem that scpi cannot be used on a computer with keysight driver installed.
4. Solve the problem of advanced trigger (Qualified, Nth Edge, Delay, Setup/Hold) parameters are not recalled.
5. Solve the problem of delay trigger level setting error.
6. Solve the problem of when the edge is set to Alternating, trigger jitter will occur when entering the other trigger type. 
7. Solve some known problems.
8. Optimize waveform capture rate.
9. Optimize Self calibration speed.
10. Optimize UI.

1. Support SDS1000X HD and SDS800X HD, 8.2.x is only applicable to SDS1000X HD and SDS800X HD.