- **Stash** support. First requires merge support.

- **Unversioned files** should be trivial to do.

- **Update search index for new content**. The crosslinking steps currently do not do this, pending addition of the search infrastructure. (Code grep keyword: `search_doc_touch`)

- When creating a checkin, honor fossil's `forbid-delta-manifests` setting.


# Security-relevant

But not otherwise SCM-relevant...

- **Port over `db_unprotect()` and `db_protect_pop()`** APIs, which allow a db to effectively be made read-only except for limited windows where specific sections of it needs to be writable. Related: `db.c:db_top_autorizer()`.