Binary packages (Deb / Rpm) of Gerrit version 2.10.2 are now available as well.
If you have already installed Gerrit 2.10 using them, you need to execute:
(on Debian / Ubuntu)
apt-get update & apt-get install gerrit
(on CentOS / RedHat)
yum clean all && yum install gerrit
If you have not configured yet the GerritForge / BinTray repositories, the instructions are on:
NOTE: The upgrade command will automatically stop Gerrit, upgrade and reindex. Once the upgrade is completed Gerrit will need to be started again manually.