03/25/2019 - v3.0.0~b47 was released for public testing with the following changes:

• Add the machswap2 exploit by @iBSparkes with 90% success rate for all A7-A12X devices on iOS 11.0-12.1.2
• Add SSH-Only support with a full shell environment for A12-A12X devices
• Update the APT lists cache file for repositories
• Important Notes:
• SSH-Only support does not contain Cydia nor Substrate
• SSH-Only support does not support tweak injection
• Cydia and Substrate are not supported on A12-A12X as of yet
• SSH-Only support starts dropbear on port 22
• SSH-Only includes binpack64 for the shell environment
• SSH-Only support extracts binpack64 to /jb
• SSH-Only support includes Injector for trust cache injection
• SSH-Only support includes nonceutil for boot nonce management
• SSH-Only support includes snappy for APFS snapshot management
• SSH-Only support includes ldid, ldid2, ldid3 and jtool for resigning binaries
• SSH-Only support automatically injects binaries under /Applications and /jb to the trust cache when (re-)jailbreaking
• SSH-Only support is only for developers and power users

https://github.com/pwn20wndstuff/Undecimus/releases