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Migration: Server Breaking Changes

The features listed on this page were available in former RavenDB versions.
In RavenDB 7.1.x, they are either unavailable or their behavior is inconsistent with their behavior in previous versions.

RavenDB incorporates NLog as its logging system​

  • RavenDB's logging system has changed; the server now incorporates the NLog logging framework and writes all log data through it.
  • One of the changes that NLog brings to RavenDB is the richer set of logging levels, visible right away through Studio's admin-logs view.
  • Read more about Nlog in the dedicated article.
    If you migrate to RavenDB 7.x from an earlier version, please read the section related to NLog in the migration page.

Removed obsolete properties​

The following properties are no longer in use and have been removed in RavenDB 7.1.

  • ServerOptions's AcceptEula property is no longer used.
    Please use Licensing.EulaAccepted instead.

    // Removed 
    bool AcceptEula

  • The MemoryInfoResult struct no longer includes these classes:

    • MemoryUsageIntervals

      // Removed 
      sealed class MemoryUsageIntervals

    • MemoryUsageLowHigh

      // Removed 
      sealed class MemoryUsageLowHigh

Filtered vector search behavior​

In RavenDB 7.0:
When combining a vector search with a filtering condition using AND, the filter was applied after the vector search completed within the NumberOfCandidates limit. As a result, increasing NumberOfCandidates was often necessary, since the filter could discard many of the retrieved candidates.

In RavenDB 7.1:
The filter is now integrated into the vector search process.
RavenDB automatically ensures that enough results matching both the vector similarity and the filtering condition are found, without requiring manual adjustments to NumberOfCandidates. Learn more in How filtered vector search works.