If you're not sure which configs to use, see https://cryptostorm.is/blog/which-config-to-use
The most recent OpenVPN configuration files for cryptostorm are available here and here.
The configs in the rsa folder are more for compatibility than security. Works with OpenVPN 2.3.2 through 2.4.6, and OpenSSL 1.0.0 through 1.1.1
The configs in the ecc folder are more for security than compatibility. Works with OpenVPN 2.4.0 through 2.4.6, and OpenSSL 1.0.1d through 1.1.1
The configs in ecc/ed25519 and ecc/ed448 work with OpenVPN 2.4.3 through 2.4.6, but only with OpenSSL 1.1.1
The configs in cryptofree are for our free/capped service.See https://cryptostorm.is/new for more information.