Right now I would expect that basically every company using Java is using the official Oracle version. They’ve never had to worry that they can’t get security patches for the version released 14 months ago.
Practically everyone can use OpenJDK as a drop in replacement. But right now we don’t know how long security patches will continue for each release.
I would hope most firms are on Java 8 now. It wouldn’t surprise me to see people who are still on six or seven.
Nine/ten had a compatibility break (by removing access to internal packages that no one was supposed to be using). Many companies haven’t upgraded because of that. Lots of very popular Java libraries weren’t ready or depended on other libraries that weren’t ready, so upgrading may have been difficult even if you wanted to.
That seems to be a one time thing though. At this point I don’t see why companies shouldn’t be able to upgrade relatively frequently to the latest major release.
Practically everyone can use OpenJDK as a drop in replacement. But right now we don’t know how long security patches will continue for each release.
I would hope most firms are on Java 8 now. It wouldn’t surprise me to see people who are still on six or seven.
Nine/ten had a compatibility break (by removing access to internal packages that no one was supposed to be using). Many companies haven’t upgraded because of that. Lots of very popular Java libraries weren’t ready or depended on other libraries that weren’t ready, so upgrading may have been difficult even if you wanted to.
That seems to be a one time thing though. At this point I don’t see why companies shouldn’t be able to upgrade relatively frequently to the latest major release.