added strftime filter function

CHANGELOG.md

@@ -1,10 +1,25 @@
-## v0.36.0-rc.1
+## v0.36.0 (WIP)
 
 - Minor list query and API rules optimizations:
     - Removed unnecessery correlated subquery expression when using back-relations via single `relation` field.
     - Replaced `DISTINCT` with `GROUP BY id` when rows deduplication is needed and when deemed safe.
         _This should help with having a more stable and predictable performance even if the collection records are on the larger side._
 
+    For some queries and data sets the above 2 optimizations have shown significant improvements but if you notice a performance degradation after upgrading,
+    please open a Q&A discussion with export of your collections structure and the problematic request so that it can be analyzed.
+
+- Added [`strftime(format, [timevalue, modifiers...])`](@todo link to docs) date formatting filter and API rules function.
+    It operates similarly to the equivalent [SQLite `strftime` builtin function](https://sqlite.org/lang_datefunc.html)
+    with the exception that for some operators the result will be coalesced for consistency with the non-nullable behavior of the default PocketBase fields.
+    Multi-match expressions are also supported and works the same as if the collection field is referenced, for example:
+    ```js
+    // requires any/at-least-one-of multiRel records to have created date matching the formatted string "2026-01"
+    strftime('%Y-%m', multiRel.created) ?= "2026-01"
+
+    // requires ALL multiRel records to have created date matching the formatted string "2026-01"
+    strftime('%Y-%m', multiRel.created) = "2026-01"
+    ```
+
 
 ## v0.35.1