If you are looking for the definitive "stable" version of Terraria before the upcoming 1.4.5 update, is it. It represents the game at its most polished, with a decade of feedback distilled into a smooth survival-crafting experience.
: The biggest advantage of the GOG version is that it is completely DRM-free. You do not need a launcher (like Steam) to run the game. You can simply unzip and play. Terraria.v1.4.4.5-GOG.zip
If you obtained this .zip file from a source other than the official GOG store, be cautious. Pirated .zip files are common vectors for malware. Always run a scan using a tool like VirusTotal before extracting. If you are looking for the definitive "stable"
: This update introduced the Shimmer liquid, found in the new Aether biome. It allows players to "transmute" items—de-crafting gear back into materials or transforming NPCs into new forms. You do not need a launcher (like Steam) to run the game
The "GOG" tag in your file refers to the version sold on GOG.com .