3.0.19
- AsymmetricKey: error out on unsupported operations (#1879)
- Blowfish: fix issues on 32-bit PHP installs
- BigInteger: fix for hex numbers with new lines in them
- SFTP: fix "Creating default object from empty value" error (#1876)
- SSH2: add getTimeout() method (#1889)
- PrimeField: prevent infinite loop with composite primefields (CVE-2023-27560)