1. A method for identifying queries having version-intents and presenting relevant search results in accordance with such version-intents, the method comprising: receiving a search query; determining that at least a portion of the search query has a version-intent indicative of a particular subject-version associated with a subject of the search query, the determining comprising: comparing terms of the search query with information stored in a query store; determining that that the compared terms of the search query has a version-intent stored in the query store; and identifying the particular subject version for the version-intent stored in the query store; presenting a plurality of search results that are ranked for presentation, at least in part, based on the particular subject-version indicated by the version-intent, the presenting comprising ranking the plurality of search results based on subject-version tags associated with the particular subject-version; and presenting a user-manipulatable tool, manipulation of which permits a user to change the version-intent to be indicative of a subject-version associated with the subject of the search query other than the particular subject-version.
6. The method of claim 1 , wherein the user-manipulatable tool visually indicates at least one subject-version associated with the subject of the search query other than the particular subject-version.