Microsoft will be ending support for Windows 10 build 10240 on March 26th (via Mary Jo Foley), after a year and eight months since it launched in July 2015. For our home readers, this will not be too much of a concern, as most of us are on the Anniversary Update (or another OS entirely). Also, Microsoft supported it longer than some hardware vendors, such as NVIDIA, who requires a later build for PCs with a Pascal-based GPU. (Update: I haven't been able to find out whether AMD supports 10240 or not, and it's really a small point for home users anyway. The point was to show that users are heavily intended to be on the latest version.)
Rippin' off the band-aid.
Again, these new builds are free from Microsoft, so, from a financial standpoint, there’s little reason to not update if your machine can support it. What it does show, however, is how short of a time we have between a bad decision being implemented and a bad decision being forced upon all Windows PCs. If a change upsets you, or feels like it could be used anti-competitively now or in the future, don’t be shy to raise the concern when it appears. You will only have a year or two before it can no longer be avoided… at most… even if you're a business. In most cases, you'll only have a handful of months.