RCP application: "Check for Updates" returns "No updates were found"

Question

I'm updating the RCP application from the site, which contains the new version of the application (9.0.0.46). But "Check for Updates" returns "No updates were found". Example: existing version is 9.0.0.7; new version is 9.0.0.46.

For the existing version 9.0.0.13 the new version (9.0.0.46) was found.

It seems that versions are compared as a Strings, and as 4 < 7 the RCP doesn't see the new version in the first case, and as 4 > 1 it sees the second one. How to check this assumption and resolve this issue?

Thanks!

Answer 1

I finally found the answer in the https://wiki.eclipse.org/Version_Numbering. In RCP applications, the build number is composed of four (4) segments: three integers and a string, respectively named major.minor.service.qualifier. While the first three segments (major, minor and service) are compared as numbers, the last one (qualifier) is compared lexicographically. So, in my case, it is actually an expected behavior.