So, a requirement is flagged in Altassian and I took that requirement.
Code Review done and committed in dev branch, and later to release branch.
After 3 weeks, QA raises a defect.
Turns out, BA has updated the requirement but didn't inform anyone.(Was updated after the code was merged in release branch).
QA took the latest version, raised a defect with high priority.
On confronting BA, he casually comments they'll update when required. It's the dev's responsibility to check the JIRA.
TL;DR; Its the dev who should check and update the code after commiting in release branch, even if Altassian gets updated 3 weeks later from release. -_-.