The point where Canonical initially planned to drop 32-bit support entirely, before settling on keeping "selective" 32-bit libraries for compatibility (like Steam and Wine).
: A 32-bit system is theoretically limited to 4 GB of RAM . While techniques like Physical Address Extension (PAE) allow some 32-bit systems to see more memory, individual applications are still restricted by the 4 GB ceiling. linux ubuntu 32 bits
./32bit_app
Ubuntu is based on Debian. Unlike Ubuntu, Debian still provides official 32-bit (i386) installation media for its latest stable releases. It is the most reliable "Ubuntu-like" experience for old hardware. The point where Canonical initially planned to drop