We are currently in the process of updating dependencies used in editor, which is needed partly to incorporate bugfixes (such as a fix for macOS Mojave crash) and partly to stop using no longer supported software (like JDK).
Newer OpenjJDK dropped support for 32-bit Windows, which means that we have to drop it too, so using editor soon will mean you need to have a 64-bit computer. We plan to remove download links from defold.com and stop providing updates (via auto-updater) for it.
You still will be able to bundle defold games for 32-bit Windows — engine is not affected!