Is this library maintained

[krzysztof-cislo]

Hello,

Is this library maintained? There (almost) no for long time. Also it looks like the latest release version is not the same as code in the develop branch.

I wanted to submit a PR to fix issue regarding summary first fit files (ref link: https://forums.garmin.com/developer/fit-sdk/b/news-announcements/posts/important-fit-activity-file-message-change) but if the latest version is not released yet I hesitate to do it...