File attributes error during upgrade and missing column in database

I have found two issues with the latest install of ISPConfig 3.1 and the upgrade to 3.1.15p3 when installing on CentOS 7.8.2003. I used the stable release for both the install as well as the upgrade.

Missing column in database
After the installation is completed I tried to add a new domain through the Web interface, which didn't work since the column fastcgi_php_version on table web_domain is reported missing. Going through the incremental SQL files folder I noticed that although column first is added through file upd_0031.sql, it is later removed through file upd_dev_collection.sql in this section:

-- we have to decide whether to delete the column or leave it there for investigating not-converted entries
-- ALTER TABLE `web_domain` DROP COLUMN `fastcgi_php_version`;​

Although the line is commented out in the file, it still gets executed on my system and thus being removed from the table. I had to manually add the column back to the table.

File attributes error during upgrade
When I executed the automatic upgrade using ispconfig_update.sh I get the following error:

PHP Warning: fopen(/var/www/php-fcgi-scripts/ispconfig/.php-fcgi-starter): failed to open stream: Permission denied in /tmp/update_stable.sh.Yd2DZjizZ2/ispconfig3_install/install/lib/install.lib.php on line 466​

The reason for this is that the i flag is added to the file attribute during the installation, but the upgrade script does not remove the flag before attempting to read/modify it. I solved this by executing chattr -i on the file after the installation, but before running the upgrade script.

 

You are right. I used the link ispconfig.org/ispconfig/ispconfig3/repository/archive.tar.gz?ref=stable-3.1 to download ISPConfig 3.1 (which I guess downloaded the development version) rather than the recommended ispconfig.org/downloads/ISPConfig-3-stable.tar.gz after which I ran the ispconfig_update.sh command and apparently was downgraded to 3.1.15p3.

This server is now in production. What do you recommend I do? Can I stay with 3.1.15p3 or will I run into issues because of the downgrade? Or is it possible to reinstall the 3.1 git version without loosing data?