backend: support multiharp packaging: drop tox, downgrade numpy backend: support aarch64, **including Apple M1/M2 and other embedded arm64 Linux platforms**
0.9.8
gui: fix overflow of time axis
0.9.7
gui: fix an issue that may blow up 0th bin in real-time mode display. The exported txt file will not be affected. We recommend all users who use real-time mode to upgrade to this version.
0.9.6
1. bundle a Conda environment for easier offline installation on Windows
0.9.5
1. gui: downgrade bokeh from 3.0.3 to 2.4.3 as a temporary workaround