This is a breaking change. It modifies collisions with respect to query
parameters as well as the default ranking of routes.
A route that does not specify query parameters will now match against
requests with _and without_ query parameters, assuming all other
elements of the route match as well. A route that _does_ specify query
parameters will only match requests with query parameters; this remains
true.
To accommodate this change in the most natural manner possible, the
default rankings of routes have changed as illustrated below:
|-------------+-------+----------+---------------|
| static path | query | new rank | previous rank |
|-------------+-------+----------+---------------|
| yes | yes | -4 | 0 |
| yes | no | -3 | 0 |
| no | yes | -2 | 1 |
| no | no | -1 | 1 |
|-------------+-------+----------+---------------|
In other words, the most specific routes, with preference for paths over
queries, are ranked highest (lower number).