| Release notes for Gerrit 2.1.8 | 
 | ============================== | 
 |  | 
 | Gerrit 2.1.8 is now available: | 
 |  | 
 | link:http://code.google.com/p/gerrit/downloads/detail?name=gerrit-2.1.8.war[http://code.google.com/p/gerrit/downloads/detail?name=gerrit-2.1.8.war] | 
 |  | 
 | New Features | 
 | ------------ | 
 | * Add cache for tag advertisements | 
 | + | 
 | When READ level access controls are used on references/branches, this | 
 | cache provides a massive performance boost. On some repositories, | 
 | no-op Git client requests can go from 7.910s to 0.550s.  Since all | 
 | of the time reduction is server CPU, this is a major performance | 
 | improvement for busy servers. | 
 |  | 
 | * Substantially speed up pushing changes for review | 
 | + | 
 | Pushing changes to big projects was very slow, for similar issues | 
 | as the READ level access controls. Push checks have been improved, | 
 | reducing the amount of server CPU required to validate a push for | 
 | review is connected to the branch its intended for. | 
 |  | 
 | * Avoid costly findMergedInto during push to refs/for/* | 
 | + | 
 | Checking to see if a new commit uploaded for review has already been | 
 | merged into a branch turns out to be expensive, and not very useful. | 
 | Since the commit is brand new to the server, it cannot possibly ever | 
 | have been merged. Skip the merge check to get a major performance | 
 | improvement on upload to big projects. | 
 |  | 
 | * Allow serving static files in subdirectories | 
 | + | 
 | The /static/ subdirectory can now serve static files contained within | 
 | subdirectories. This change also patches the code to perform better | 
 | checks to ensure the requested URL is actually in the subdirectory. | 
 | These additional checks are only relevant on Windows servers, where | 
 | MS-DOS compatibility may have permitted access to special device | 
 | files in any directory, rather than just the "\\.\" device namespace. | 
 |  | 
 | Bug Fixes | 
 | --------- | 
 | * issue 518 Fix MySQL counter resets | 
 | + | 
 | MySQL databases lost their change_id, account_id counters after | 
 | server restarts, causing duplicate key insertion errors. Fixed. | 
 |  | 
 | * issue 1019 Normalize OpenID URLs with http:// prefix | 
 | + | 
 | OpenID standards require sites to add "http://" to an OpenID | 
 | identifier if the user did not enter it themselves. | 
 |  | 
 | * Ignore PartialResultException from LDAP. | 
 | + | 
 | Instead of crashing with an exception, partial results are ignored | 
 | when configured to be ignored. |