Linux 4.17 Kernel Offers Better Intel Power-Savings While Dropping Old CPUs (phoronix.com)
An anonymous reader writes: Linus Torvalds has released Linux 4.17-rc1. This kernel comes with a significant amount of new capabilities as outlined by the Linux 4.17 feature overview. Among the new features are AMDGPU WattMan support, Intel HDCP support, Vega 12 GPU enablement, NVIDIA Xavier SoC support, removal of obsolete CPU architectures, and even better support for the original Macintosh PowerBook 100 series. Phoronix testing has also revealed measurable power savings improvements and better power efficiency on Intel hardware. The kernel is expected to be stabilized by June.
. Open source drops support when you no longer care.
Not Quite, it is when DEVELOPERS no longer care, what you personally want is irrelevant unless you are a developer capable of maintaining. Still better than many proprietary options as at least if it is important enough you can pay someone wads of cash to continue to support.