Why were the patch versions for CVE-2021-20206 released so late?

[Silence-worker-02]

Hello, we are a research team working on Golang. During our investigation, we found CVE-2021-20206 was addressed in commit a5c35b1. However, based the commit, we noticed that the patch version (spec-v1.0.0) was released after long time (98 days). We are curious about the reasons behind the delayed release of the patch version, as it may hinder the efficient distribution of patches to downstream users. Could the reason be

1.Issues with testing and CI checking.

2.Other commits have to be incorporated into one release.

3.By convention, versions are not frequently released.

4.Other reasons.

Thank you for your attention, and we look forward to receiving your reply.