I also have version 3.8 running on my production server, I am planning to update in a day or two. I will share results here once done.
Backup your config File on to your desktop, Run the update, reboot, Cut and paste your old config file
Hope that is of some help?
Here is a simple guide:
Updated, thanks for all.
Mine is also updated now.
Stopped existing service, copied config file settings and re-installed new version.
And things working fine now. This all is on same server, same database.
I tried it for another case, where I wanted to use AWS RDS instance, I created new RDS instance, added new database, copied my existing database and restored on new instance of database, but when I tried to start service, I got some duplicate primary key values error. So dropped idea to use AWS RDS instance, but performance on that was like superb. I will give it another try later.
What's the error when you connect AWS RDS?
@Anton, I will let you know after my next try of installation. As of now I am using my existing local database only.
How can I update traccar from 3.8 to 3.9 without recreate database and lost data of devices users etc.