I've used Canonical's free 3-seat extended service mantainence (ESM) support on my one 14.04 LTS machine for a long time. It's so nice having a stable target for more than decade for my personal projects. I have so much software defined radio software that absolutely does break in ways I can't fix on a newer version of any Debian-alike. The ESM program has been a provider of peace of mind when still leaving that SDR machine connected to the internet and running javascript.

>30-day trial for enterprises. Always free for personal use. >Free, personal subscription for 5 machines for you or any business you own

This "Pro" program also being free is a suprise to be sure, but a welcome one.

Its unclear if this legacy patch will be free for personal use.