Earlier today, Microsoft released Windows 10 for PCs build 15061 to the Fast ring, but the company isn't done there. Slow ring Insiders are getting some love as well today, as they can now install build 15058 for PCs.
Of course, while 15061 was the third Fast ring build this week, 15058 was only released to the Fast ring three days ago. It doesn't contain any new features - as is expected when we're so close to the RTM - since build 15048 was offered up to the Slow ring nine days ago, as the first PC build in the ring since December.
There is another bit of good news though, which is that ISOs are already available. Typically, it takes a few days for a new build's images to get posted; in fact, it was six days for 15048. The most recent two builds are always available, and you can download them here.
The Creators Update is slated to arrive in a matter of weeks now, so stay tuned. The Fast ring builds are going to come fast until there's an RTM, then it will be released to the Slow ring, and after that, it will be promoted to Release Preview.