The document summarizes the new plugin API in Fluentd v0.14. Key points include: - The v0.12 plugin API was fragmented and difficult to write tests for. The v0.14 API provides a unified architecture. - The main plugin classes are Input, Filter, Output, Buffer, and plugins must subclass Fluent::Plugin::Base. - The Output plugin supports both buffered and non-buffered processing. Buffering can be co
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