1.15.0 release status update

[Owen Nichols]

One month after cutting support/1.15, Jira shows 5 blockers remaining [1].  
Great work, keep those bug reports and fixes coming!
This week I will be conducting a practice exercise of creating a 1.15.0.RC0 to 
test release scripts and pipelines.  Please ignore this RC0 tag (no need to 
review or vote on it).
Thanks,
-Geode 1.15.0 Release Manager

[1] 
https://issues.apache.org/jira/browse/GEODE-10063?jql=project%3DGEODE%20AND%20(labels%3Dblocks-1.15.0%E2%80%8B)%20AND%20resolution%20is%20empty

1.15.0 release status update

[Owen Nichols]

After cutting the support/1.15 branch a few weeks ago, Jira [1] shows we are 
down to 3 blockers.  Great work, keep those fixes (and bug reports) coming!

Information about upcoming releases [2] and tips for backporting [3] can now be 
found in the wiki.

PSA:
When using a search engine to quickly locate Geode wiki topics, check the url:
* cwiki.apache.org/confluence/display/GEODE  is the official URL of the Geode 
wiki.
* www.cwiki.us/display/GEODE  is NOT authorized or maintained by the ASF and is 
several years out-of-date.

Thanks,
-Geode 1.15.0 Release Manager

[1] 
https://issues.apache.org/jira/issues/?jql=project%3DGEODE%20AND%20(labels%3Dblocks-1.15.0%E2%80%8B)%20AND%20(fixVersion%20!%3D%20%221.15.0%22%20or%20fixVersion%20is%20empty%20or%20not%20status%20in(Resolved%2CClosed))%20AND%20resolution%20is%20empty
[2] https://cwiki.apache.org/confluence/display/GEODE/Release+Schedule
[3] https://cwiki.apache.org/confluence/display/GEODE/Backporting+Tips