DESILO FHE Library v1.15.0 Release Notes

DESILO FHE Library v1.15.0 is now available (released 2026-07-08). Highlights:

• Improved overall GPU performance. CKKS Bootstrap in async gpu mode is now 2-3 times faster, depending on the GPU.
• Added the roll method for CKKS ciphertexts and plaintexts. For now, it is an alias of the existing rotate function. Starting from version 2.0 , which is planned for release later this year, rotate will mean left rotation, as is commonly used in FHE literature, while roll will mean right rotatation, as used in numpy.
• Fixed a bug where calling multiply_matrix with a CKKS ciphertext in NTT form would produce an incorrect result when the ciphertet level matched the plain matrix level.

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