diff --git a/docs/v4/TODO.md b/docs/v4/TODO.md
new file mode 100644
index 0000000000..ed7236f05c
--- /dev/null
+++ b/docs/v4/TODO.md
@@ -0,0 +1,7 @@
+# TODO
+
+List of tasks that are important to do before the release of version 4 (but can't be done now via code changes in `v4-dev`).
+
+- [ ] Make migration guide for v3 to v4
+- [ ] Just prior to release: Update conda feedstock recipe dependencies (remove cgen and compiler dependencies). Make sure that recipe is up-to-date.
+- [ ] Revamp the oceanparcels.org landing page, and perhaps also consider new logo/branding?
diff --git a/docs/v4/index.md b/docs/v4/index.md
index 3acc4b2296..94831395b2 100644
--- a/docs/v4/index.md
+++ b/docs/v4/index.md
@@ -20,5 +20,6 @@ The pages below provide further background on the development of Parcels v4. You
 
 api
 nojit
+TODO
 Parcels v4 Project Board <https://github.com/orgs/OceanParcels/projects/5>
 ```
diff --git a/pyproject.toml b/pyproject.toml
index 991a6691cf..ae98bd7152 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -58,6 +58,9 @@ minversion = "7"
 markers = [ # can be skipped by doing `pytest -m "not slow"` etc.
   "flaky: flaky tests",
   "slow: slow tests",
+  "v4alpha: failing tests that should work for v4alpha",
+  "v4future: failing tests that should work for a future release of v4",
+  "v4remove: failing tests that should probably be removed later",
 ]
 
 filterwarnings = [