I released Vine Type 2.0 recently and it's running most of my client sites now. Version 2 requires .NET Framework 2.0 so v1.5 will be the last version to support .NET 1.1.
Version 2 brings new features, reworking of some existing features, and new design possibilities. The biggest change is reworking the display of search results.
Search results are now more like Google and less like WordPress. Version 1 would just display entire articles or article summaries when keywords matched, but you didn't know which terms matched which search result nor did you know how often a term matched an article or what context the term was mentioned.more..