diff --git a/README.md b/README.md
index b35f602..0bc1358 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@ pyinstaller --specpath "build" --distpath "build\dist" -p "." --clean -F -i NONE
 Feel free to fork this project for your own uses, any Pull Requests back to the original repository would be greatly appreciated!
 
 ## To-Do List
-- [ ] Add `--version` command that displays version number (and maybe release date)
+- [x] Add `--version` command that displays version number (and maybe release date)
 - [ ] Implement parsing of `igc` [tasks](https://xp-soaring.github.io/igc_file_format/igc_format_2008.html#link_3.6) and [events](https://xp-soaring.github.io/igc_file_format/igc_format_2008.html#link_4.2) into `acmi` [events](https://www.tacview.net/documentation/acmi/en/#Events)
 - [ ] Improve and augment error handling, i.e: for flights with missing/invalid date fields in their header
 - [ ] Add a way for the user to determine the output file's name or name template
\ No newline at end of file
diff --git a/combine-igcs/combine-igcs.py b/combine-igcs/combine-igcs.py
index dc75d13..99e0636 100644
--- a/combine-igcs/combine-igcs.py
+++ b/combine-igcs/combine-igcs.py
@@ -108,6 +108,10 @@ def main():
 	# parse all arguments
 	args = parser.parse_args()
 
+	if args.version:
+		print(a.version)
+		return
+
 	try:
 		# define input path
 		inPath = a.parseArgPath(args.input, "Input")
diff --git a/common/args.py b/common/args.py
index f61aba2..8ed3e54 100644
--- a/common/args.py
+++ b/common/args.py
@@ -1,8 +1,16 @@
 import pathlib as pl
 from common import console as c
 
+# current release version
+version = "v0.2 - 2021.12.10"
+
 # common arguments that every program uses
 def addDefaultArgs(parser):
+	parser.add_argument(
+		"--version",
+		action = "store_true",
+		help = 'print current version number+date'
+	)
 	parser.add_argument(
 		"-r",
 		"--remove",
diff --git a/common/functions.py b/common/functions.py
index 1e9175d..89d299a 100644
--- a/common/functions.py
+++ b/common/functions.py
@@ -1,6 +1,7 @@
 import datetime as dt
 import zipfile as zf
 import pathlib as pl
+from common import args as a
 
 
 # FILE NAME/PATH PARSING
@@ -92,7 +93,7 @@ def getFlightHeader(filename): # takes a .igc filepath and returns header data a
 # ACMI FILE PARSING
 
 def acmiFileInit(refDateTime): # takes reference datetime object and returns the first 3 acmi lines
-	return "FileType=text/acmi/tacview\nFileVersion=2.1\n0,ReferenceTime="+refDateTime.strftime("%Y-%m-%d")+"T"+refDateTime.strftime("%H:%M:%S")+"Z\n"
+	return "FileType=text/acmi/tacview\nFileVersion=2.1\nDataRecorder=igc2acmi "+a.version+"\n0,ReferenceTime="+refDateTime.strftime("%Y-%m-%d")+"T"+refDateTime.strftime("%H:%M:%S")+"Z\n"
 
 def acmiObjInit(header, id=1000): # takes a parsed .igc header and returns the respective ACMI object init line
 	return str(id)+",Name="+header["actype"]+",CallSign="+header["callsign"]+",Pilot="+header["pilot"]+"\n"
diff --git a/convert-all-igcs/convert-all-igcs.py b/convert-all-igcs/convert-all-igcs.py
index 51f0d62..48d5ada 100644
--- a/convert-all-igcs/convert-all-igcs.py
+++ b/convert-all-igcs/convert-all-igcs.py
@@ -20,6 +20,10 @@ def main():
 	# parse all arguments
 	args = parser.parse_args()
 
+	if args.version:
+		print(a.version)
+		return
+
 	try:
 		# define input path
 		inPath = a.parseArgPath(args.input, "Input")
diff --git a/igc2acmi/igc2acmi.py b/igc2acmi/igc2acmi.py
index a26c71c..b717ffc 100644
--- a/igc2acmi/igc2acmi.py
+++ b/igc2acmi/igc2acmi.py
@@ -18,6 +18,10 @@ def main():
 	# parse all arguments
 	args = parser.parse_args()
 
+	if args.version:
+		print(a.version)
+		return
+
 	try:
 		# define input file path and name
 		igcTuple = fnc.parsePathName(args.input_igc_file)