RubyGems version 1.3.2 introduces a feature for incremental index updates, significantly reducing the time required to update the index with new gems from minutes to mere seconds. This improvement ensures that new gems appear in the index within 1-2 minutes, provided they build correctly and the job queue is not delayed. Additionally, support for legacy indexes has been discontinued, necessitating an upgrade for users running RubyGems versions earlier than 1.2.0.