What currencies does Swift support?

Excuse me, could you please clarify for me which currencies are currently supported by SWIFT? I'm interested in understanding the range of international transactions that can be facilitated through their system, and I'd appreciate it if you could provide a concise overview of the different currencies that are accepted. Additionally, is there any information you can share about the process for adding new currencies to SWIFT's network, or any potential future developments in this area? Thank you for your assistance.