Migration: Client Breaking Changes

• Include from a Non-tracking session
  A non-tracking session will now throw the below exception if an 'Include' operation is registered in it, to indicate that the operation is forbidden from a non-tracking session and warn about its expected results.
  "This session does not track any entities, because of that registering includes is forbidden to avoid false expectations when later load operations are performed on those and no requests are being sent to the server. Please avoid any 'Include' operations during non-tracking session actions like load or query."

• Type Changes
  Many methods related to paging information (Skip, Take, PageSize, TotalResults, etc.) that used the int type in former RavenDB versions now use long, e.g. QueryStatistics.TotalResults

• Indexing
  The default value of the Indexing.OrderByTicksAutomaticallyWhenDatesAreInvolved configuration option is now true

• Facets
  FacetOptions were removed from RangeFacet

• Obsolete entities removed
  Many obsolete attributes, properties, and methods were removed from the public API

• A DisposeCertificate convention has been added to prevent/allow the disposal of DocumentStore.Certificate when the store is disposed of, to help users mitigate the X509Certificate2 leak.
  More info here.

• Serialization
  Only Public fields are serialized/deserialized when doing a projection. Private fields are not serialized/deserialized.

• DefaultAsyncHiLoIdGenerator is replaced with AsyncHiLoIdGenerator
  

  public AsyncHiLoIdGenerator(string tag, DocumentStore store, string dbName, char identityPartsSeparator)

Unsupported Features

RavenDB 6.0 introduces sharding.
Features that are currently unavailable under a sharded database (but remain available in regular databases) are listed in the sharding unsupported features page.
Attempting to use these features when the database is sharded will normally throw a NotSupportedInShardingException exception.

Casting Smuggler Results

The result sets returned by Smuggler and features that use it (import, export, Backup and Restore) are sharding-specific and should not be cast using a non-sharded type.

The following code, for example, will fail when the database is sharded.

var operation = await store.Maintenance.SendAsync(new BackupOperation(config));
var result = await operation.WaitForCompletionAsync(TimeSpan.FromSeconds(60));

// This will fail with a sharded database
var backupResult = (BackupResult)result;

For the code to succeed, replace the last line with:

var backupResult = (ShardedBackupResult)result;

Endpoints

• GET /databases/*/revisions/bin
  Pass start instead of etag
  We now fetch from the last entry backward rather than from a specific etag.
  

  GetRevisionsBinEntryCommand
  Previous definition: GetRevisionsBinEntryCommand(long etag, int? pageSize)
  Current definition: GetRevisionsBinEntryCommand(int start, int? pageSize)
  

• GET /databases/*/indexes/terms
  The Terms field of the returned results is now List<String> instead of HashSet<String>

  public class TermsQueryResult
    {
       public List<string> Terms { get; set; }
       public long ResultEtag { get; set; }
       public string IndexName { get; set; }
    }

• GET database/*/debug/documents/get-revisions
  Operation parameter changed from etag to start

• Failed to project when having a backing private field
• Unexpected results on projection query on a static index with a dictionary
• Check that query relays on PropertyNameConverter to get property name
• Overflow of ReduceAttempts
• Review all Obsolete() attributes in 6.0
• Inconsistency in BlittableJsonTraverserHelper.TryRead when trying to filter docs with nested non-existing field
• Removed non-typed inheritance from typed incremental time series client API
• CollectionStatistics properties are now long
• Removed private fields from the projection
• DocumentConventions.UseCompression is not respected by BlittableJsonContent
• LINQ projection convention is not applied inside javascript projection when querying static index
• RavenBooleanQuery - merging two RavenBooleanQuery requires an additional boosting check
• Index deletion is prevented when index lock mode is locked
• Wrong query result with CamelCasePropertyNamesContractResolver
• Compare Exchange includes do not override compare exchange values that are already tracked in the session