DESILO FHE Library v1.13.0 Release Notes

DESILO FHE Library v1.13.0 is now available (released 2026-05-06). Highlights:

• A new parameter set now allows ciphertexts to retain up to 17 levels after bootstrap. Previously, the bootstrap operation could leave at most 14 levels. Lossy and sign bootstrap are not supported with this new parameter set. Please note that this is an experimental implementation, and ciphertexts and keys generated with it may not be compatible with future releases.
• async gpu mode is now available. This mode handles the FHE operations in an asynchronous manner and is faster by a factor of 1.5 to 2, depending on the GPU architecture. For accurate measurements, sync operation is also available. Please note that this is an experimental implementation and data structures created in this mode should not be used by other engines in the same thread.

Full release notes: https://fhe.desilo.dev/latest/release_notes/