May or may not be worth mentioning:

• Post-shaders fixed for OpenGL. (GLES: Use accurate GLSL ver in postshader convert #11182)
• Significant performance improvement in some Gundam and Earth Defense games. (handle cull mode by indices, refer to issue #10172 #10973)
• Initial APIs for debuggers, tools, and trophy or streaming apps (WebSocket based debugger interface #10909)

Less notable, probably:

• Android app bundles?
• Compilation on Linux/EGL. (SDL: Fix some startup issues and EGL #11144)
• Ability to select rendering device on multi-GPU systems (GPU device choice for D3D11 and Vulkan #10922)
• Suggestions for settings when reporting bad gameplay ( Reporting: Provide suggestions on negative compat reports #11132)
• Extra alternate speed option (Add second alternate speed and buttons for alt speed #11187)

-[Unknown]

@unknownbrackets Regarding the alternate speed options, what are they and what is their purpose exactly? I really don't see any difference with or without them. Are they used in unthrottling?

It's just a second speed setting. So now you can have a 50% and a 200% so you can have double and half speed. Or you could have 200% and unlimited for fast and very fast.

-[Unknown]

it may probably be worth mentioning hotlinking is working properly for non-XInput devices?

Yes, that's there - "Detects DirectInput devices when running (#11461)".

-[Unknown]

@unknownbrackets Is the new touch controls style worth mentioning?

Yeah, maybe that one too. Honestly neither that or alternate speed seem major enough, probably.

Looking forward to the spline improvements for 1.8.x.

-[Unknown]

v1.7.0 will release today?

Depends if there's any issues with the new "Android Bundle" stuff. Probably this week at least.