2.38.3 and 2.37.10 are not released yet, so no hotfix is required. These issue have been fixed in all the branches that will correspond to future releases.
The issues were recent regressions and, as far as I am aware, older releases were not affected by these problems. Unfortunately they made it into 2.39.1 before we discovered them, and therefor required a hotfix for 2.39.1 only (2.39.1.1).