Now, Ubuntu will drop 32-bit i386 from its supported architectures, that's beginning with its next release. The company will shortly begin the process of disabling it for the 'Eoan' series across Ubuntu infrastructure and i386 will not be included as an architecture for the 19.10 release.
On Tuesday, Canonical, the developer of the iconic Linux distro, said,
The 19.10 release, code-named Eoan Ermine, will drop support for the i386 processor architecture. This means we will not provide 32-bit builds of new upstream versions of libraries, there are a number of ways that 32-bit applications can continue to be made available to users of later Ubuntu releases ... We will be working to polish the 32-bit support story over the course of the 19.10 development cycle.
Ubuntu desktop team member, Will Cooke said,
The Ubuntu engineering team has reviewed the facts before us and concluded that we should not continue to carry i386 forward as an architecture. Hardware which will only run a 32-bit operating system is getting pretty rare these days and is unlikely to have enough resources to run the latest release of Ubuntu Desktop.
Besides this change, desktop users will still be able to run the 18.04 LTS Ubuntu build, which will be supported through 2023.
The company will release details of version 19.10 ahead of its release in October 2019.