What version of Progress created a backup?

I do not think Progress has a probe, like the one you are looking for.

You can do prorest db bkp -list  

with different versions of Prorgess that you have. The one that will work will be the one backup was made with.

Good question.  I don't have a good answer.

But feel free to vote for my enhancement request.  :)

https://community.progress.com/community_groups/products_enhancements/i/openedge_database_enhancements_-_tell_us_what_youd_like_to_see/get_dlc_version_info_from_a_backup_file

>>prorest db bkp -list

Sorry, I was wrong.

prorest -list will work with different version of backup. So it could not be indication of a version. I would vote for Rob's enhancement.

> The first portion of the file is fairly readable text which makes it easy to confirm that the file is indeed a backup -- but it descends into binary chaos shortly after that.

The structure of backup headers in old Progress versions (from ftp.progress-tech.ru/.../probkupinfo.sh ):

# Progress backup header:
#
# V8     V9     
# Offset Offset Len  Description
# ------ ------ ---  -----------
#   0      0     80  Backup volume description
#  80     80     80  Full path to the database
# 160    160     80  Incremental backup description
# 264    264      4  Date/Time of current backup
# 268    268      4  Date/Time of previous full backup
# 272    272      4  Date/Time of previous incr backup
# 276    276      4  Incremental backup number
# 280    280      4  Database high water (V8 only)
# 284    284      4  Value 0
# 288    288      4  BI blocksize
# 293    293      1  Is online (1 - online, 0 - offline)
# 296    296    4/8  Backup Volume Size (-vs) divided by blocking factor (-bf)
# 300    304      4  Blocking factor (-bf)
# 304    308      4  Backup volume number
# 308    312      4  First backup block in volume: 1+VolSize*(BkupVolNumr-1)
# 312    316      1  Is incremental (2 = Incremental)
# 313    317 60/255  Database path
# 376    620      4  \07 \07 \07 \07 
# 380    624      4  Last transaction number
# 384    628      4  Overlap factor (-io)
# 391    635      1  Is compressed (-com)  (2 = Enable)
# 392    636      2  Redundancy (-red)
# 396    640      4  Backup header CRC
# 400    644      2  Database blocksize

Version of Progress is not there.