I upgraded to 7.16.5 last night (on one host) at a point when all my tasks had finished and none had re-started. So it was easy to shutdown, install the new version and restart.
I hadn't paid a lot of attention to the event log, especially at start up...but on this new version, there does seem to be more information displayed at least initially...
17/04/2020 21:27:11 | Amicable Numbers | Found app_config.xml
17/04/2020 21:27:11 | climateprediction.net | Found app_config.xml
17/04/2020 21:27:11 | Cosmology@Home | Found app_config.xml
17/04/2020 21:27:11 | latinsquares | Found app_config.xml
17/04/2020 21:27:11 | Milkyway@Home | Found app_config.xml
17/04/2020 21:27:11 | Milkyway@Home | Your app_config.xml file refers to an unknown application 'milkyway'. Known applications: None
17/04/2020 21:27:11 | PrimeGrid | Found app_config.xml
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llr321'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llrCUL'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llrESP'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llrGCW'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llrPSP'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llrSOB'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llrSR5'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llrWOO'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llr321'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llrCUL'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llrESP'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llrGCW'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llrPSP'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PrimeGrid | Entry in app_config.xml for app 'llrPPS', plan class 'mt' doesn't match any app versions
17/04/2020 21:27:11 | PrimeGrid | Entry in app_config.xml for app 'llrMEGA', plan class 'mt' doesn't match any app versions
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llrSOB'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llrSR5'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PrimeGrid | Entry in app_config.xml for app 'llrTPS', plan class 'mt' doesn't match any app versions
17/04/2020 21:27:11 | PrimeGrid | Entry in app_config.xml for app 'llrTRP', plan class 'mt' doesn't match any app versions
17/04/2020 21:27:11 | PrimeGrid | Your app_config.xml file refers to an unknown application 'llrWOO'. Known applications: 'genefer18', 'gcw_sieve', 'llrTPS', '321_sr2sieve', 'llrMEGA', 'llrPPSE', 'llrPPS', 'pps_sr2sieve', 'llrTRP', 'ap26', 'genefer19', 'genefer15', 'genefer16', 'genefer17mega', 'genefer17low', 'genefer'
17/04/2020 21:27:11 | PRIVATE GFN SERVER | Found app_config.xml
The above might be displayed depending on how each project is configured by your own preferences...but this is new I think: