Pico 1.0 uses the QUERY_STRING routing method (e.g. /pico/?sub/page)
to support SEO-like URLs out-of-the-box with any webserver. You can
still setup URL rewriting (e.g. using mod_rewrite on Apache) to
basically remove the ? from URLs, but your rewritten URLs must follow
the new QUERY_STRING principles. URL rewriting requires some special
configuration on your webserver, but this should be "basic work" for
any webmaster...
Pico 0.9 and older required Apache with mod_rewrite enabled, thus old
plugins, templates and contents may require you to enable URL rewriting
to work. If you're upgrading from Pico 0.9, you will probably have to
update your rewriting rules.
We recommend you to use the link filter in templates to create
internal links, e.g. {{ "sub/page"|link }} is equivalent to
{{ base_url }}/sub/page and {{ base_url }}?sub/page, depending on
enabled URL rewriting. In content files you can use the %base_url%
variable; e.g. %base_url%?sub/page will be replaced accordingly.