Just downloaded v18.5.15, but could not launch successfully after installation. Here is the first portion of the diagnostic message:
Process: Manager [13224]
Path: /Applications/Manager.app/Contents/MacOS/Manager
Identifier: io.manager
Version: ???
Code Type: X86-64 (Native)
Parent Process: ??? [1]
Responsible: Manager [13224]
User ID: 501
Date/Time: 2018-05-22 19:58:45.847 -0600
OS Version: Mac OS X 10.13.4 (17E202)
Report Version: 12
Anonymous UUID: 7A1D78E3-F7DB-D310-DBA5-BF8B51612D48
Sleep/Wake UUID: 6CDCD5EA-F24E-4D24-B88F-6F00B0126419
Time Awake Since Boot: 470000 seconds
Time Since Wake: 220 seconds
System Integrity Protection: enabled
Crashed Thread: 0
Exception Type: EXC_CRASH (Code Signature Invalid)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY
Notice the invalid code signature message.