Arista
Latest EOS version for Arista 7050s-52: 4.18.11M
MD5 (EOS-4.18.11M.swi) = 8b7783a710f0716e75972e939b1f8ce7
EOS has two different methods for unlocking third party transceivers, depending on what hardware you're trying to unlock. It's not dependent on what version of EOS you're running on the switch, so all switches which originally supported the old "magic file" unlock method always supported the old method, and newer switches have always required the customer unlock code.
https://blog.thelifeofkenneth.com/2021/05/unlocking-third-party-transceivers-on.html
Other interesting links:
- SONiC supported platforms: https://sonic-net.github.io/SONiC/Supported-Devices-and-Platforms.html
My DCS-7050S-52
- Got it with EOS 4.9.7, flashed to 4.18.11M via ZTP