This release makes some pretty meaningful improvements to the linker, making it both more efficient (in memory and CPU) and making generated binaries smaller.

This release makes some pretty meaningful improvements to the linker, making it both more efficient (in memory and CPU) and making generated binaries smaller. >The key contributors to better linker performance are a newly redesigned object file format, and a revamping of internal phases to increase concurrency (for example, applying relocations to symbols in parallel). Object files in Go 1.15 are slightly larger than their 1.14 equivalents. > >These changes are part of a multi-release project to modernize the Go linker, meaning that there will be additional linker improvements expected in future releases.