Update (2020-05-12)
A macOS build is now available, however Discord integration is not currently available due to stability issues.
As we encountered some issues with Discord integration using the new SDK (due to inadequate documentation, we were not informed that by default, the Discord SDK library would attempt to launch the Discord client when the game is opened), we temporarily withdrew Tuesday's Alpha 4.5.5 release. At the same time, we did a few more tweaks on top of what was already included in 4.5.5 (including a rewrite of internal sine math to further improve performance), so we have therefore bumped up the version number to Alpha 4.5.6.
As a recap, here's a run-through of the major user-facing features we've added on Alpha 4.5.5/4.5.6:
We have added an updated profile editor interface, and have updated the avatar system: now you can pick an image from the avatars folder, rather than having to name images after your profile name.
We've added a new series of modules for calculating note density and unbroken streams in charts. This is, in turn, used by new features such as a notes per-second (NPS) graph displayed on the song selector that can display the number of measures that each stream lasts (modelled after syntax popularized within the stamina community).
We've reorganized the player options menu, cleaning up the main page to leave the most commonly-used options, and with new pages for "Effects" (which covers modifiers that effect the chart and how it is displayed), and "Additional options" (which contains toggles for other in-game options). You can access them from a new "next screen" option on the player options menu.
The in-game stats display now has a "Detailed" mode, available during 1-player play, that displays the aforementioned NPS graph, a lifebar gauge (which is also colored to indicate the status of your full combo), and a live scattergraph of each individual note judgment. We also have an experimental rendering mode for the NPS graphs that, in gameplay, allows the graph to scroll during longer songs. You can also customize what's displayed on the Detailed pane from the profile editor.
And last but not least, we have added Discord rich presence support using the Discord GameSDK (currently not available on macOS).
For download links and a complete changelog (including details on technical changes also present in this build), visit the downloads page.