We were looking at migrating to v2, but it seems the search functions is incompatible. V1 is "must get substring match on all space separated components", which is pretty straightforward. But on v2 you need a perfect match on other parts except last (which is prefix). For one the v2 implementation is pretty strange (what's the scenario for that logic) and secondly it's impossible to implement things you can do on v1.
What we do is we want to search all files with specific extension and in v1 we just search ".extension" and filter making sure it was a suffix hit. But on v2 you can't do that
Third would't it make more sense to support regex filtering, pretty standard and WAAYY more powerful?