Linux debugging has taken a giant step forward with the release of Live Recorder 5.0 from Undo.\nJust released on Wednesday, this product makes debugging on multi-process systems significantly easier. Based on flight recorder technology, it delves more deeply into processes to provide insight into what\u2019s going on within each process. This includes memory, threads, program flow, service calls and more. To make this possible, Live Recorder 5.0's record, replay and debugging capabilities have been enhanced with the ability to:\n\nRecord the exact order in which processes altered shared memory variables. It is even possible to zero in on specific variables and skip backward to the last line of code in any process that altered the variable.\nExpose potential defects by randomizing thread execution to help reveal race conditions, crashes and other multi-threading defects.\nRecord and replay the execution of individual Kubernetes and Docker containers to help resolve defects faster in microservices environments.\n\nThe Undo Live Recorder enables engineering teams to record and replay the execution of any software program -- no matter how complex -- and to diagnose and fix the root cause of any issue in test or production.\n\nDepending on your license, Live Recorder can be used on the command line with the live-record command that is somewhat similar to strace though, instead of printing system calls and signals, it creates an "Undo recording". Captured failings in recordings can then be debugged (far more effective than grappling with core dumps!). These recordings can also be can be shared with other members of the staff and can be replayed with the reversible debugger to further investigate the cause of the crash or other problem.\nThe Undo Engine is supported on the following Linux distributions:\n\nRed Hat Enterprise Linux 6.8, 6.9, 6.10, 7.4, 7.5, 7.6 and 8.0\nFedora 28, 29 and 30\nSuSE Linux Enterprise Server 12.3, 12.4 and 15\nUbuntu 16.04 LTS, 18.04 LTS, 18.10 and 19.04\n\nUndo is a fast-growing, venture-backed technology start-up based in San Francisco and Cambridge, UK. They claim that the Live Recorder provides 100% certainty about the factors that led to any software failure -- even in the most complex software environments.