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Event Stream Intelligence: Esper & NEsper

NEsper Change History

This section lists the changes between Esper releases. The changes introduced in each release are split into the following categories.

  • API changes: Any changes to the API that may impact existing users.
  • Major changes: Major new features.
  • Minor changes: Smaller changes and bug fixes.

NEsper 1.12.0 Beta 1

Released February 16, 2008

API changes

  • None

Major changes

  • Feature equivalent with Esper 1.12.0
  • Improved support for SQL and database access
  • Includes benchmark kits

Minor changes

  • None

NEsper 1.10.0 Beta 1

Released September 22, 2007

API changes

  • None

Major changes

  • Refactoring effort in Esper between 1.3 and 1.4
  • Refactoring effort in Esper between 1.4 and 1.10
  • Addition of database support to NEsper via ADO.NET
  • Addition of parameter style support do address quirks in the ADO.NET parameter model
  • Addition of dynamic code generation to access properties and fields
  • Conversion of ReaderWriterLock to FastReaderWriterLock -- implementation flaw in CLR
  • Includes NEsperIO as a port of EsperIO 1.10.0

Minor changes

  • None

NEsper 1.3.0 Final

Released June 13, 2007

API changes

  • None

Major changes

  • Conversion of Esper to the CLR.
  • Most of the method names have had their canonization changed to reflect .NET coding conventions.
  • Database support has been dropped in this release until we can address positional parameters in ADO.NET.
  • Many of the interfaces used in Esper have been changed to delegates in NEsper.

Minor changes

  • None

NEsper 1.3.0 Beta 1 - Release Candidate

Released April 28, 2007

API changes

  • None

Major changes

  • None

Minor changes

  • None