Dmitrii delivered the JustTrackSDK v5.1.1 release within the CocoaPods/Specs repository, focusing on updating the SDK version to streamline integration for downstream projects. Working with Objective-C and Swift, Dmitrii ensured that the release notes and specifications accurately reflected the new version, supporting seamless adoption by dependent teams. The work centered on mobile and SDK development, laying a stable foundation for future enhancements and bug fixes in the 5.1.1 lifecycle. While the scope was limited to a single feature update over one month, the release process demonstrated careful attention to version control and compatibility within the broader iOS development ecosystem.