• Disable RSA/SHA1 signature algorithm by default #75
• Add basic Logger implementations that can be optionally utilized with JSch.setLogger():
  • JulLogger, using java.util.logging.Logger
  • JplLogger, using Java 9's JEP 264
  • Log4j2Logger, using Apache Log4j 2
  • Slf4jLogger, using SLF4J
• Fix client version to be compliant with RFC 4253 section 4.2 by not including minus sign characters #115
• Add java.util.zip based compression implementation #114
  • This is based upon the CompressionJUZ implementation posted to the JSch-users mailing list in 2012 by the original JSch author
  • The existing JZlib implementation remains the default to maintain strict RFC 4253 section 6.2 compliance
    • To use the new implementation globally, execute JSch.setConfig("zlib@openssh.com", "com.jcraft.jsch.juz.Compression") + JSch.setConfig("zlib", "com.jcraft.jsch.juz.Compression")
    • To use the new implementation per session, execute session.setConfig("zlib@openssh.com", "com.jcraft.jsch.juz.Compression") + session.setConfig("zlib", "com.jcraft.jsch.juz.Compression")