For all binaries officially released by us we publish the MD5, SHA1, and SHA256 checksums. You can use these checksums to check wheter the file you downloaded has been modified. All three checksums should match the file you downloaded; if this is not the case it means that either the file didn't come from us or that it got broken during transport. Either way it might possibly contain dangerous modifications and the file should therefore not be trusted!
Latest release in opengfx is 0.5.0, released on 2014-03-31 19:44.
[ 3.3 MiB ][ Checksums ]md5sum : f2ca3f1b23e360264940913ad42f3d9a
sha1sum : 963e5e8052a286af269b2837cf3741c3d6c746eb
[ 9.1 MiB ][ Checksums ]md5sum : 30ba09c84a483d09f507609c51e6cd6b
sha1sum : bbeb4348a94ad11c32d80df25a25cd91ec13627d