1.0.2.086 is the latest but it tells You there’s an “update” to 1.0.1.261. That’s not correct so ignore that “update” and wait for the next update announcement and manually perform the update…
264 was release back in September, 1.0.2.086 beta was out November 11th. We will clean up the version numbers to make it simpler in one of the upcoming releases.
2.086 beta has all the items but you do need to install PE .6 after you update to 2.086 beta for that to operate. There is a hotfix coming for PE that fixes the SteamVR settings change.
Most likely there will be updates to all the packages this week so also keep an eye out for that.