If you're on PC and using a non-Steam platform, here are some direct download links for update 1.9:
Now go enjoy a stable, bug-fixed, DRM-free Tamriel—no Steam login required. skyrim+update+19+download+non+steam+exclusive
This update is considered one of the most critical in the game's history because it removed the "level cap". However, "non-steam exclusive" downloads for this patch are generally considered unofficial or high-risk If you're on PC and using a non-Steam