diff --git a/docs/source/pcapkit/corekit/enum.rst b/docs/source/pcapkit/corekit/enum.rst
new file mode 100644
index 0000000000..0f9225a482
--- /dev/null
+++ b/docs/source/pcapkit/corekit/enum.rst
@@ -0,0 +1,29 @@
+Enumeration Base
+================
+
+.. module:: pcapkit.corekit.enum
+
+:mod:`pcapkit.corekit.enum` contains the two bases every enumeration in this
+library is meant to inherit from: :class:`EnumLookup`, the bare *lookup* half
+shared by open registries and closed sets alike, and :class:`EnumRegistry`,
+which adds the *mutating* half every generated enumeration under
+:mod:`pcapkit.const` inherits.
+
+.. autoclass:: pcapkit.corekit.enum.EnumLookup
+   :members:
+   :show-inheritance:
+
+   .. automethod:: _validate_value
+
+.. autoclass:: pcapkit.corekit.enum.EnumRegistry
+   :members:
+   :show-inheritance:
+
+   .. automethod:: _extend
+   .. automethod:: _unregistered_member
+
+Auxiliaries
+-----------
+
+.. autoclass:: pcapkit.corekit.enum.NoDefaultType
+.. autodata:: pcapkit.corekit.enum.NO_DEFAULT
diff --git a/docs/source/pcapkit/corekit/index.rst b/docs/source/pcapkit/corekit/index.rst
index f19ffe30a4..d25939b7a4 100644
--- a/docs/source/pcapkit/corekit/index.rst
+++ b/docs/source/pcapkit/corekit/index.rst
@@ -10,15 +10,19 @@ class :class:`~pcapkit.corekit.infoclass.Info`,
 protocol collection class :class:`~pcapkit.corekit.protochain.ProtoChain`,
 and :class:`~pcapkit.corekit.multidict.MultiDict` family inspired from
 :mod:`Werkzeug` for multientry :obj:`dict` data mapping, the
-:class:`~pcapkit.corekit.fields.field.Field` family for data parsing, and
+:class:`~pcapkit.corekit.fields.field.Field` family for data parsing,
 the :class:`~pcapkit.corekit.context.ContextRegistry` channel for caller
-supplied information that a protocol needs but the wire does not carry.
+supplied information that a protocol needs but the wire does not carry, and
+the :class:`~pcapkit.corekit.enum.EnumLookup`/
+:class:`~pcapkit.corekit.enum.EnumRegistry` bases every constant enumeration
+inherits from.
 
 .. toctree::
    :maxdepth: 2
 
    fields/index
    context
+   enum
    infoclass
    io
    module
diff --git a/docs/source/pcapkit/index.rst b/docs/source/pcapkit/index.rst
index f93514f8d2..d7ce1afbeb 100644
--- a/docs/source/pcapkit/index.rst
+++ b/docs/source/pcapkit/index.rst
@@ -33,6 +33,16 @@ schema definitions as well as various customisable interfaces.
    const/index
    vendor/index
 
+Package Metadata
+================
+
+.. autodata:: pcapkit.__version__
+
+   .. seealso::
+
+      :doc:`../contributing/releasing` for how this value is bumped and
+      consumed by the release pipeline.
+
 Library Index
 =============
 
diff --git a/tests/corekit/test_sentinel_exports_unit.py b/tests/corekit/test_sentinel_exports_unit.py
index 314a59dd52..f9865bc1c0 100644
--- a/tests/corekit/test_sentinel_exports_unit.py
+++ b/tests/corekit/test_sentinel_exports_unit.py
@@ -24,7 +24,7 @@
 pins it so a later reading of the ruling cannot escalate into deleting the types.
 
 The population is **four**, not the three
-:file:`docs/source/conventions.rst` documented -- ``_Absent`` /
+:file:`docs/source/contributing/conventions.rst` documented -- ``_Absent`` /
 ``_AbsentType`` in :mod:`pcapkit.protocols.protocol` is the fourth, missed because a
 sweep filtered on capitalised names does not see a leading underscore.
 :class:`SentinelPopulationTests` pins the count and the doc together, so the next
@@ -76,7 +76,7 @@
 
 #: Every sentinel in the tree that follows the house ``<SENTINEL>Type`` convention,
 #: as ``(instance name, instance, type, module)``. Four, not the three
-#: :file:`docs/source/conventions.rst` used to document -- see the module docstring.
+#: :file:`docs/source/contributing/conventions.rst` used to document -- see the module docstring.
 SENTINELS = (
     ('NULL', NULL, NullType, 'pcapkit.corekit.module'),
     ('NoValue', NoValue, NoValueType, 'pcapkit.corekit.fields.field'),
@@ -124,7 +124,7 @@ def _star_import(module: 'str') -> 'dict[str, object]':
 
 
 def _sentinel_section() -> 'str':
-    """The "Naming a sentinel" section of :file:`docs/source/conventions.rst`.
+    """The "Naming a sentinel" section of :file:`docs/source/contributing/conventions.rst`.
 
     Sliced by its own section markers rather than by line number, so an edit
     elsewhere in the file -- or the move to
@@ -167,7 +167,7 @@ def test_enum_exports_the_object_and_not_the_type(self) -> 'None':
         """``EnumLookup`` and ``EnumRegistry`` are not sentinels and stay.
 
         ``EnumLookup`` in particular: GitHub issue #906 split it out as a public
-        base and :file:`docs/source/conventions.rst` cites its ``get``, so dropping
+        base and :file:`docs/source/contributing/conventions.rst` cites its ``get``, so dropping
         it while removing the sentinel type next to it would break that reference.
 
         """
@@ -309,7 +309,7 @@ def test_the_sentinel_table_has_a_row_per_sentinel_and_no_more(self) -> 'None':
 
 
 class SentinelBehaviourTests(unittest.TestCase):
-    """The per-sentinel differences :file:`docs/source/conventions.rst` documents.
+    """The per-sentinel differences :file:`docs/source/contributing/conventions.rst` documents.
 
     Not part of the export change, and asserted here because the doc edit that goes
     with it makes claims about all four -- an undocumented ``__bool__`` or a missing
diff --git a/tests/protocols/test_option_roundtrip_unit.py b/tests/protocols/test_option_roundtrip_unit.py
index aa36845c30..5e48fcc928 100644
--- a/tests/protocols/test_option_roundtrip_unit.py
+++ b/tests/protocols/test_option_roundtrip_unit.py
@@ -113,8 +113,8 @@ class Gap(NamedTuple):
     #:
     #: Make it as specific as the message allows, because a fragment that matches
     #: half the tree does not pin anything: ``'invalid format'`` alone occurs 205
-    #: times across 13 modules (31 in :file:`internet/hip.py`, 26 in
-    #: :file:`transport/tcp.py`), so it is satisfied by a regression at any of
+    #: times across 13 modules (31 in :file:`pcapkit/protocols/internet/hip.py`, 26 in
+    #: :file:`pcapkit/protocols/transport/tcp.py`), so it is satisfied by a regression at any of
     #: them. Prefer the alias and whatever bracketed code the message carries --
     #: ``'TCP: [OptNo 28] invalid format'`` narrows those 26 sites to the one
     #: option that can print ``28``. The tuple form is for messages whose stable