diff --git a/coordinator/startup.lua b/coordinator/startup.lua
index 5b3c46b..2f83016 100644
--- a/coordinator/startup.lua
+++ b/coordinator/startup.lua
@@ -22,7 +22,7 @@ local sounder     = require("coordinator.sounder")
 
 local apisessions = require("coordinator.session.apisessions")
 
-local COORDINATOR_VERSION = "v1.3.0"
+local COORDINATOR_VERSION = "v1.3.1"
 
 local CHUNK_LOAD_DELAY_S = 30.0
 
@@ -103,6 +103,7 @@ log.info("========================================")
 println(">> SCADA Coordinator " .. COORDINATOR_VERSION .. " <<")
 
 crash.set_env("coordinator", COORDINATOR_VERSION)
+crash.dbg_log_env()
 
 ----------------------------------------
 -- main application
diff --git a/pocket/startup.lua b/pocket/startup.lua
index 3bff062..5b7c91f 100644
--- a/pocket/startup.lua
+++ b/pocket/startup.lua
@@ -18,7 +18,7 @@ local iocontrol = require("pocket.iocontrol")
 local pocket    = require("pocket.pocket")
 local renderer  = require("pocket.renderer")
 
-local POCKET_VERSION = "v0.7.2-alpha"
+local POCKET_VERSION = "v0.7.3-alpha"
 
 local println = util.println
 local println_ts = util.println_ts
@@ -54,6 +54,7 @@ log.info("BOOTING pocket.startup " .. POCKET_VERSION)
 log.info("========================================")
 
 crash.set_env("pocket", POCKET_VERSION)
+crash.dbg_log_env()
 
 ----------------------------------------
 -- main application
diff --git a/reactor-plc/startup.lua b/reactor-plc/startup.lua
index 63167c7..da79744 100644
--- a/reactor-plc/startup.lua
+++ b/reactor-plc/startup.lua
@@ -18,7 +18,7 @@ local plc       = require("reactor-plc.plc")
 local renderer  = require("reactor-plc.renderer")
 local threads   = require("reactor-plc.threads")
 
-local R_PLC_VERSION = "v1.7.1"
+local R_PLC_VERSION = "v1.7.2"
 
 local println = util.println
 local println_ts = util.println_ts
@@ -55,6 +55,7 @@ log.info("========================================")
 println(">> Reactor PLC " .. R_PLC_VERSION .. " <<")
 
 crash.set_env("reactor-plc", R_PLC_VERSION)
+crash.dbg_log_env()
 
 ----------------------------------------
 -- main application
diff --git a/rtu/startup.lua b/rtu/startup.lua
index d16751f..071ab40 100644
--- a/rtu/startup.lua
+++ b/rtu/startup.lua
@@ -31,7 +31,7 @@ local sna_rtu      = require("rtu.dev.sna_rtu")
 local sps_rtu      = require("rtu.dev.sps_rtu")
 local turbinev_rtu = require("rtu.dev.turbinev_rtu")
 
-local RTU_VERSION = "v1.9.0"
+local RTU_VERSION = "v1.9.1"
 
 local RTU_UNIT_TYPE = types.RTU_UNIT_TYPE
 local RTU_UNIT_HW_STATE = databus.RTU_UNIT_HW_STATE
@@ -71,6 +71,7 @@ log.info("========================================")
 println(">> RTU GATEWAY " .. RTU_VERSION .. " <<")
 
 crash.set_env("rtu", RTU_VERSION)
+crash.dbg_log_env()
 
 ----------------------------------------
 -- main application
diff --git a/scada-common/crash.lua b/scada-common/crash.lua
index 1942a8d..a7e2c93 100644
--- a/scada-common/crash.lua
+++ b/scada-common/crash.lua
@@ -24,6 +24,21 @@ function crash.set_env(application, version)
     ver = version
 end
 
+-- log environment versions
+---@param log_msg function log function to use
+local function log_versions(log_msg)
+    log_msg(util.c("RUNTIME:          ", _HOST))
+    log_msg(util.c("LUA VERSION:      ", _VERSION))
+    log_msg(util.c("APPLICATION:      ", app))
+    log_msg(util.c("FIRMWARE VERSION: ", ver))
+    log_msg(util.c("COMMS VERSION:    ", comms.version))
+    if has_graphics then log_msg(util.c("GRAPHICS VERSION: ", core.version)) end
+    if has_lockbox  then log_msg(util.c("LOCKBOX VERSION:  ", lockbox.version)) end
+end
+
+-- when running with debug logs, log the useful information that the crash handler knows
+function crash.dbg_log_env() log_versions(log.debug) end
+
 -- handle a crash error
 ---@param error string error message
 function crash.handler(error)
@@ -31,13 +46,7 @@ function crash.handler(error)
     log.info("=====> FATAL SOFTWARE FAULT <=====")
     log.fatal(error)
     log.info("----------------------------------")
-    log.info(util.c("RUNTIME:          ", _HOST))
-    log.info(util.c("LUA VERSION:      ", _VERSION))
-    log.info(util.c("APPLICATION:      ", app))
-    log.info(util.c("FIRMWARE VERSION: ", ver))
-    log.info(util.c("COMMS VERSION:    ", comms.version))
-    if has_graphics then log.info(util.c("GRAPHICS VERSION: ", core.version))    end
-    if has_lockbox  then log.info(util.c("LOCKBOX VERSION:  ", lockbox.version)) end
+    log_versions(log.info)
     log.info("----------------------------------")
     log.info(debug.traceback("--- begin debug trace ---", 1))
     log.info("--- end debug trace ---")
diff --git a/supervisor/startup.lua b/supervisor/startup.lua
index 4eae495..be57a70 100644
--- a/supervisor/startup.lua
+++ b/supervisor/startup.lua
@@ -21,7 +21,7 @@ local supervisor = require("supervisor.supervisor")
 
 local svsessions = require("supervisor.session.svsessions")
 
-local SUPERVISOR_VERSION = "v1.3.0"
+local SUPERVISOR_VERSION = "v1.3.1"
 
 local println = util.println
 local println_ts = util.println_ts
@@ -86,6 +86,7 @@ log.info("========================================")
 println(">> SCADA Supervisor " .. SUPERVISOR_VERSION .. " <<")
 
 crash.set_env("supervisor", SUPERVISOR_VERSION)
+crash.dbg_log_env()
 
 ----------------------------------------
 -- main application