Hi, We have sufficient changes, improvements and fixes available on the 5.2 branch to start 5.2.1 release. A couple of improvements can still be included with the 5.2.1 release (e.g. bloom filter for multi-point lookups).
I can start off with the release process by the end of next week unless there are any objections. Please let me know if you think any other important fixes or improvements are worth including in the release.