Slackbuilds does not have updated version of qbittorent,libtorrent-rasterbar and xca. All the build scripts are for older versions. src2pkg does not convert any of the packages. So how can I update them, when I run them manually, I get errors and when I run src2pkg same thing happens.

You can manually change the SlackBuilds to work with the newer versions. Sometimes all you need to do is pass a new VERSION variable, but sometimes newer versions require additional dependencies and/or configure options. As for SBo, it is up to the maintainers to put out updated versions. I know I am not constantly checking the SlackBuilds I maintain to see if there's new versions, so I wouldn't mind if someone were to email me to let me know there's a newer version. So, the maintainer is listed on the SBo page and in the .info file, so it might be a good idea to let them know there's an updated version. It could also be possible that the maintainer is aware of the update and hasn't had time to work on it, chose to keep it at a specific version for a specific reason (dependency for another program or issues with building).

Best thing to do is contact the maintainer and see what they say. As to src2pkg, I haven't used that in years, so without an actual error message, I can't venture a guess on what's going wrong.

Alien Bob has a newer qbittorrent package.

http://www.slackware.com/~alien/slac...s/qbittorrent/

His version is 3.3.6 and the new version is 3.3.7, thanks a bunch for the link.

You can just download the newer source and change the version in the SlackBuild. I did it and it compiles 3.3.7 just fine.