Widescreen Fix is an ASI plugin that allows the game's aspect ratio, as well as the HUD, to be displayed normally on widescreen monitors. The FOV is also fixed.
This version is the version from April 24, 2016, but with the disabled function that adds a text outline in the manner of the Xbox360, PS3, and Mobile versions of the game.
Unfortunately, but because of this, new fonts (the font from GTA 5, for example) simply cease to be smoothed at the edges. Yes, so much so that you can "cut your eyes". I have disabled this feature.
Why is this version the best? Because it is absolutely stable, does not cause conflicts with other mods (GFXHack, as an example) and is an ASI plugin, unlike the latest versions.
Note: To work, you need an ASI-Loader and a patch gta_sa.exe 1.0 us.