Vulkan 1.0.44 isn't as big of an update as some recent Vulkan releases that brought new extensions and other notable improvements. With Vulkan 1.0.44, it's basically a pile of documentation fixes.
Vulkan 1.0.44 has a number of documentation updates, 12 issues were closed from their GitHub tracker and 13 from their internal issues repository. The fixes range from document clarifications to typo fixes and other corrections.
The latest documentation can be fetched from Vulkan-Docs on GitHub.