diff --git a/docs/source/pcapkit/protocols/internet/hopopt.rst b/docs/source/pcapkit/protocols/internet/hopopt.rst
index 2b9e7c6e8..4814396be 100644
--- a/docs/source/pcapkit/protocols/internet/hopopt.rst
+++ b/docs/source/pcapkit/protocols/internet/hopopt.rst
@@ -108,6 +108,10 @@ Header Schemas
    :members:
    :show-inheritance:
 
+.. autoclass:: pcapkit.protocols.schema.internet.hopopt._SMFDPDOption
+   :members:
+   :show-inheritance:
+
 .. autoclass:: pcapkit.protocols.schema.internet.hopopt.SMFDPDOption
    :members:
    :show-inheritance:
@@ -291,6 +295,14 @@ Data Models
    :members:
    :show-inheritance:
 
+.. autoclass:: pcapkit.protocols.data.internet.hopopt.QuickStartRequestOption
+   :members:
+   :show-inheritance:
+
+.. autoclass:: pcapkit.protocols.data.internet.hopopt.QuickStartReportOption
+   :members:
+   :show-inheritance:
+
 .. autoclass:: pcapkit.protocols.data.internet.hopopt.RPLOption
    :members:
    :show-inheritance:
diff --git a/docs/source/pcapkit/protocols/internet/ipv4.rst b/docs/source/pcapkit/protocols/internet/ipv4.rst
index 87ecfe465..a6287c9ca 100644
--- a/docs/source/pcapkit/protocols/internet/ipv4.rst
+++ b/docs/source/pcapkit/protocols/internet/ipv4.rst
@@ -330,6 +330,14 @@ Data Models
    :members:
    :show-inheritance:
 
+.. autoclass:: pcapkit.protocols.data.internet.ipv4.QuickStartRequestOption
+   :members:
+   :show-inheritance:
+
+.. autoclass:: pcapkit.protocols.data.internet.ipv4.QuickStartReportOption
+   :members:
+   :show-inheritance:
+
 .. rubric:: Footnotes
 
 .. [*] https://en.wikipedia.org/wiki/IPv4
diff --git a/docs/source/pcapkit/protocols/internet/ipv6_opts.rst b/docs/source/pcapkit/protocols/internet/ipv6_opts.rst
index 83b1ecd38..42ac7c95b 100644
--- a/docs/source/pcapkit/protocols/internet/ipv6_opts.rst
+++ b/docs/source/pcapkit/protocols/internet/ipv6_opts.rst
@@ -108,6 +108,10 @@ Header Schemas
    :members:
    :show-inheritance:
 
+.. autoclass:: pcapkit.protocols.schema.internet.ipv6_opts._SMFDPDOption
+   :members:
+   :show-inheritance:
+
 .. autoclass:: pcapkit.protocols.schema.internet.ipv6_opts.SMFDPDOption
    :members:
    :show-inheritance:
@@ -291,6 +295,14 @@ Data Models
    :members:
    :show-inheritance:
 
+.. autoclass:: pcapkit.protocols.data.internet.ipv6_opts.QuickStartRequestOption
+   :members:
+   :show-inheritance:
+
+.. autoclass:: pcapkit.protocols.data.internet.ipv6_opts.QuickStartReportOption
+   :members:
+   :show-inheritance:
+
 .. autoclass:: pcapkit.protocols.data.internet.ipv6_opts.RPLOption
    :members:
    :show-inheritance:
diff --git a/pcapkit/protocols/data/internet/hip.py b/pcapkit/protocols/data/internet/hip.py
index 3a86d7bdc..80dccb1ca 100644
--- a/pcapkit/protocols/data/internet/hip.py
+++ b/pcapkit/protocols/data/internet/hip.py
@@ -62,7 +62,13 @@
 
 @info_final
 class Control(Data):
-    """Data model for HIP controls."""
+    """Data model for HIP controls.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1328`).
+
+    """
 
     #: Anonymous flag.
     anonymous: 'bool'
@@ -92,7 +98,14 @@ class Parameter(Data):
 
 @info_final
 class HIP(Protocol):
-    """Data model for HIP header."""
+    """Data model for HIP header.
+
+    .. versionchanged:: 1.5.0
+
+       New required fields ``packet_fixed``, ``reserved`` and ``version_fixed``
+       (:issue:`1417`, :issue:`1459`).
+
+    """
 
     #: Next header.
     next: 'TransType'
@@ -142,7 +155,13 @@ def __init__(self, type: 'Enum_Parameter', critical: 'bool', length: 'int', cont
 
 @info_final
 class ESPInfoParameter(Parameter):
-    """Data model for HIP ``ESP_INFO`` parameter."""
+    """Data model for HIP ``ESP_INFO`` parameter.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1328`).
+
+    """
 
     #: Reserved octets, carried verbatim so that re-serialising reproduces them.
     reserved: 'int'
@@ -159,7 +178,13 @@ def __init__(self, type: 'Enum_Parameter', critical: 'bool', length: 'int', rese
 
 @info_final
 class R1CounterParameter(Parameter):
-    """Data model for HIP ``R1_COUNTER`` parameter."""
+    """Data model for HIP ``R1_COUNTER`` parameter.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1223`).
+
+    """
 
     #: The four reserved octets, as captured.
     reserved: 'bytes'
@@ -185,7 +210,13 @@ def __init__(self, spi: 'int', ip: 'IPv6Address') -> 'None': ...  # pylint: disa
 
 @info_final
 class Locator(Data):
-    """Data model for HIP locator."""
+    """Data model for HIP locator.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1365`).
+
+    """
 
     #: Traffic.
     traffic: 'int'
@@ -220,7 +251,14 @@ def __init__(self, type: 'Enum_Parameter', critical: 'bool', length: 'int', loca
 
 @info_final
 class PuzzleParameter(Parameter):
-    """Data model for HIP ``PUZZLE`` parameter."""
+    """Data model for HIP ``PUZZLE`` parameter.
+
+    .. versionchanged:: 1.5.0
+
+       New required fields ``lifetime_exponent`` and ``rhash_len``
+       (:issue:`653`, :issue:`1323`).
+
+    """
 
     #: Numeric index.
     index: 'int'
@@ -254,6 +292,10 @@ def __init__(self, type: 'Enum_Parameter', critical: 'bool', length: 'int', inde
 class SolutionParameter(Parameter):
     """Data model for HIP ``SOLUTION`` parameter.
 
+    .. versionchanged:: 1.5.0
+
+       New required field ``rhash_len`` (:issue:`653`).
+
     .. versionremoved:: 1.5.0
 
        ``lifetime``, now :attr:`reserved`: only ``PUZZLE`` carries a lifetime
@@ -361,7 +403,13 @@ def __init__(self, type: 'Enum_Parameter', critical: 'bool', length: 'int', ciph
 
 @info_final
 class NATTraversalModeParameter(Parameter):
-    """Data model for HIP ``NAT_TRAVERSAL_MODE`` parameter."""
+    """Data model for HIP ``NAT_TRAVERSAL_MODE`` parameter.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1223`).
+
+    """
 
     #: The two reserved octets, as captured.
     reserved: 'bytes'
@@ -385,7 +433,13 @@ def __init__(self, type: 'Enum_Parameter', critical: 'bool', length: 'int', min_
 
 @info_final
 class EncryptedParameter(Parameter):
-    """Data model for HIP ``ENCRYPTED`` parameter."""
+    """Data model for HIP ``ENCRYPTED`` parameter.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1223`).
+
+    """
 
     #: The four reserved octets, as captured.
     reserved: 'bytes'
@@ -468,7 +522,13 @@ def __init__(self, type: 'Enum_Parameter', critical: 'bool', length: 'int', cert
 
 @info_final
 class NotificationParameter(Parameter):
-    """Data model for HIP ``NOTIFICATION`` parameter."""
+    """Data model for HIP ``NOTIFICATION`` parameter.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1223`).
+
+    """
 
     #: The two reserved octets, as captured.
     reserved: 'bytes'
@@ -559,7 +619,13 @@ def __init__(self, type: 'Enum_Parameter', critical: 'bool', length: 'int', life
 
 @info_final
 class RegFromParameter(Parameter):
-    """Data model for HIP ``REG_FROM`` parameter."""
+    """Data model for HIP ``REG_FROM`` parameter.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1223`).
+
+    """
 
     #: The reserved octet, as captured.
     reserved: 'bytes'
@@ -598,7 +664,13 @@ def __init__(self, type: 'Enum_Parameter', critical: 'bool', length: 'int', tf_t
 
 @info_final
 class ESPTransformParameter(Parameter):
-    """Data model for HIP ``ESP_TRANSFORM`` parameter."""
+    """Data model for HIP ``ESP_TRANSFORM`` parameter.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1223`).
+
+    """
 
     #: The two reserved octets, as captured.
     reserved: 'bytes'
@@ -633,7 +705,13 @@ def __init__(self, type: 'Enum_Parameter', critical: 'bool', length: 'int', ack:
 
 @info_final
 class PayloadMICParameter(Parameter):
-    """Data model for HIP ``PAYLOAD_MIC`` parameter."""
+    """Data model for HIP ``PAYLOAD_MIC`` parameter.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1223`).
+
+    """
 
     #: The three reserved octets, as captured.
     reserved: 'bytes'
@@ -672,7 +750,13 @@ def __init__(self, type: 'Enum_Parameter', critical: 'bool', length: 'int', id:
 
 @info_final
 class Flags(Data):
-    """Data model for the flags in HIP ``ROUTE_DST`` and ``ROUTE_VIA`` parameters."""
+    """Data model for the flags in HIP ``ROUTE_DST`` and ``ROUTE_VIA`` parameters.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1417`).
+
+    """
 
     #: Symmetric flag.
     symmetric: 'bool'
@@ -688,7 +772,13 @@ def __init__(self, symmetric: 'bool', must_follow: 'bool', reserved: 'int') -> '
 
 @info_final
 class RouteDstParameter(Parameter):
-    """Data model for HIP ``ROUTE_DST`` parameter."""
+    """Data model for HIP ``ROUTE_DST`` parameter.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1223`).
+
+    """
 
     #: The two reserved octets, as captured.
     reserved: 'bytes'
@@ -786,7 +876,13 @@ def __init__(self, type: 'Enum_Parameter', critical: 'bool', length: 'int', opaq
 
 @info_final
 class RelayFromParameter(Parameter):
-    """Data model for HIP ``RELAY_FROM`` parameter."""
+    """Data model for HIP ``RELAY_FROM`` parameter.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1223`).
+
+    """
 
     #: The reserved octet, as captured.
     reserved: 'bytes'
@@ -803,7 +899,13 @@ def __init__(self, type: 'Enum_Parameter', critical: 'bool', length: 'int', rese
 
 @info_final
 class RelayToParameter(Parameter):
-    """Data model for HIP ``RELAY_TO`` parameter."""
+    """Data model for HIP ``RELAY_TO`` parameter.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1223`).
+
+    """
 
     #: The reserved octet, as captured.
     reserved: 'bytes'
@@ -820,7 +922,13 @@ def __init__(self, type: 'Enum_Parameter', critical: 'bool', length: 'int', rese
 
 @info_final
 class OverlayTTLParameter(Parameter):
-    """Data model for HIP ``OVERLAY_TTL`` parameter."""
+    """Data model for HIP ``OVERLAY_TTL`` parameter.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1223`).
+
+    """
 
     #: The two reserved octets, as captured.
     reserved: 'bytes'
@@ -833,7 +941,13 @@ def __init__(self, type: 'Enum_Parameter', critical: 'bool', length: 'int', rese
 
 @info_final
 class RouteViaParameter(Parameter):
-    """Data model for HIP ``ROUTE_VIA`` parameter."""
+    """Data model for HIP ``ROUTE_VIA`` parameter.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1223`).
+
+    """
 
     #: The two reserved octets, as captured.
     reserved: 'bytes'
diff --git a/pcapkit/protocols/data/internet/ipv4.py b/pcapkit/protocols/data/internet/ipv4.py
index e628a39b5..4cdfc478c 100644
--- a/pcapkit/protocols/data/internet/ipv4.py
+++ b/pcapkit/protocols/data/internet/ipv4.py
@@ -79,7 +79,13 @@ def __new__(cls, *args: 'Any', **kwargs: 'Any') -> 'ToSField':
 
 @info_final
 class Flags(Data):
-    """Data model for IPv4 Flags."""
+    """Data model for IPv4 Flags.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1326`).
+
+    """
 
     #: Reserved flag bit.
     reserved: 'int'
@@ -193,7 +199,13 @@ def __init__(self, code: 'OptionNumber', length: 'int', type: 'OptionType') -> '
 
 @info_final
 class SECOption(Option):
-    """Data model for IPv4 Security (``SEC``) option."""
+    """Data model for IPv4 Security (``SEC``) option.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``termination`` (:issue:`1393`).
+
+    """
 
     #: Classification level.
     level: 'ClassificationLevel'
@@ -209,7 +221,13 @@ def __init__(self, code: 'OptionNumber', length: 'int', type: 'OptionType', leve
 
 @info_final
 class LSROption(Option):
-    """Data model for IPv4 Loose Source Route (``LSR``) option."""
+    """Data model for IPv4 Loose Source Route (``LSR``) option.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``remaining`` (:issue:`1319`).
+
+    """
 
     #: Pointer.
     pointer: 'int'
@@ -224,7 +242,14 @@ def __init__(self, code: 'OptionNumber', length: 'int', type: 'OptionType', poin
 
 @info_final
 class TSOption(Option):
-    """Data model for IPv4 Time Stamp (``TS``) option."""
+    """Data model for IPv4 Time Stamp (``TS``) option.
+
+    .. versionchanged:: 1.5.0
+
+       New required fields ``remaining`` and ``remainder`` (:issue:`1349`,
+       :issue:`1392`).
+
+    """
 
     #: Pointer.
     pointer: 'int'
@@ -258,7 +283,13 @@ def __init__(self, code: 'OptionNumber', length: 'int', type: 'OptionType', form
 
 @info_final
 class RROption(Option):
-    """Data model for IPv4 Record Route (``RR``) option."""
+    """Data model for IPv4 Record Route (``RR``) option.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``remaining`` (:issue:`1319`).
+
+    """
 
     #: Pointer.
     pointer: 'int'
@@ -284,7 +315,13 @@ def __init__(self, code: 'OptionNumber', length: 'int', type: 'OptionType', sid:
 
 @info_final
 class SSROption(Option):
-    """Data model for IPv4 Strict Source Route (``SSR``) option."""
+    """Data model for IPv4 Strict Source Route (``SSR``) option.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``remaining`` (:issue:`1319`).
+
+    """
 
     #: Pointer.
     pointer: 'int'
@@ -371,7 +408,13 @@ class QSOption(Option):
 
 @info_final
 class QuickStartRequestOption(QSOption):
-    """Data model for IPv4 Quick Start request option."""
+    """Data model for IPv4 Quick Start request option.
+
+    .. versionchanged:: 1.5.0
+
+       New required field ``reserved`` (:issue:`1326`).
+
+    """
 
     #: TTL.
     ttl: 'timedelta'
@@ -386,7 +429,13 @@ def __init__(self, code: 'OptionNumber', length: 'int', type: 'OptionType', func
 
 @info_final
 class QuickStartReportOption(QSOption):
-    """Data model for IPv4 Quick Start report of approved rate option."""
+    """Data model for IPv4 Quick Start report of approved rate option.
+
+    .. versionchanged:: 1.5.0
+
+       New required fields ``unused`` and ``reserved`` (:issue:`1326`).
+
+    """
 
     #: Not-used octet, where a request carries its TTL.
     unused: 'int'
diff --git a/pcapkit/protocols/data/internet/mh.py b/pcapkit/protocols/data/internet/mh.py
index f02376659..635396320 100644
--- a/pcapkit/protocols/data/internet/mh.py
+++ b/pcapkit/protocols/data/internet/mh.py
@@ -822,7 +822,15 @@ def __init__(self, type: 'Enum_Option', length: 'int', data: 'bytes') -> 'None':
 
 @info_final
 class BindingRefreshAdviceOption(Option):
-    """Data model for Binding Refresh Advice option."""
+    """Data model for Binding Refresh Advice option.
+
+    .. versionremoved:: 1.1.0
+
+       ``BindRefreshAdviceOption``, this class's former name, and its
+       re-export ``pcapkit.protocols.data.internet.MH_BindRefreshAdviceOption``,
+       with no alias.
+
+    """
 
     #: Refresh interval before re-registration. Counted on the wire in units of
     #: 4 seconds [:rfc:`6275#section-6.2.4`].
@@ -858,7 +866,16 @@ def __init__(self, type: 'Enum_Option', length: 'int', home: 'int', careof: 'int
 
 @info_final
 class AuthorizationDataOption(Option):
-    """Data model for Binding Authorization Data option."""
+    """Data model for Binding Authorization Data option.
+
+    .. versionremoved:: 1.1.0
+
+       ``BindingAuthorizationDataOption``, this class's former name, and
+       its re-export
+       ``pcapkit.protocols.data.internet.MH_BindingAuthorizationDataOption``,
+       with no alias.
+
+    """
 
     #: Authenticator.
     data: 'bytes'
diff --git a/pcapkit/protocols/internet/hopopt.py b/pcapkit/protocols/internet/hopopt.py
index 34ba7e6ab..a02f91e45 100644
--- a/pcapkit/protocols/internet/hopopt.py
+++ b/pcapkit/protocols/internet/hopopt.py
@@ -1516,7 +1516,7 @@ def _make_opt_pad(self, code: 'Enum_Option', opt: 'Optional[Data_PadOption]' = N
             :attr:`Data_PadOption.length
             <pcapkit.protocols.data.internet.hopopt.Option.length>` counts the
             *whole* option, whereas :attr:`Schema_PadOption.len
-            <pcapkit.protocols.schema.internet.hopopt.PadOption.len>` is the
+            <pcapkit.protocols.schema.internet.hopopt.Option.len>` is the
             ``Opt Data Len`` field: two octets fewer, and absent altogether for a
             ``Pad1``. ``opt`` is honoured so that re-making a parsed padding
             option keeps its type and size. A ``PadN`` with ``length`` ``0`` is
diff --git a/pcapkit/protocols/internet/internet.py b/pcapkit/protocols/internet/internet.py
index 835f183d2..fce3f641a 100644
--- a/pcapkit/protocols/internet/internet.py
+++ b/pcapkit/protocols/internet/internet.py
@@ -182,6 +182,13 @@ def register(cls, code: 'Enum_TransType', protocol: 'ModuleDescriptor[ProtocolBa
                 guard this shares with ``register_protocol``, and for the
                 shipped descriptor a restore puts back (:issue:`1504`).
 
+        .. versionchanged:: 1.3.0
+
+           Takes the class, or a
+           :class:`~pcapkit.corekit.module.ModuleDescriptor` naming it, as
+           ``protocol``, in place of the ``module`` and ``class_`` name
+           strings.
+
         """
         incumbent = cls.__proto__.get(code)
         entry = cls._next_layer_entry(code, protocol)
diff --git a/pcapkit/protocols/internet/ipv6.py b/pcapkit/protocols/internet/ipv6.py
index ea3b09a73..d3801d8bf 100644
--- a/pcapkit/protocols/internet/ipv6.py
+++ b/pcapkit/protocols/internet/ipv6.py
@@ -111,9 +111,8 @@ class IPv6(IP[Data_IPv6, Schema_IPv6],
     #: Three groups are deliberately absent:
     #:
     #: * :attr:`~pcapkit.const.ipv6.extension_header.ExtensionHeader.Shim6`
-    #:   has no dedicated parser (``pcapkit/protocols/internet/NotImplemented/shim6.py``
-    #:   is a 0-byte placeholder), so there is no "own parser" for it to raise
-    #:   from. It reaches :class:`~pcapkit.protocols.internet.ipv6_ext.IPv6_Ext`
+    #:   has no dedicated parser class in this package, so there is no "own
+    #:   parser" for it to raise from. It reaches :class:`~pcapkit.protocols.internet.ipv6_ext.IPv6_Ext`
     #:   by *direct* registration (see the bottom of
     #:   :mod:`pcapkit.protocols.internet.ipv6_ext`), which already produces
     #:   exactly this class.
diff --git a/pcapkit/protocols/internet/ipv6_ext.py b/pcapkit/protocols/internet/ipv6_ext.py
index e2dcdb35e..e10e3adb9 100644
--- a/pcapkit/protocols/internet/ipv6_ext.py
+++ b/pcapkit/protocols/internet/ipv6_ext.py
@@ -329,8 +329,8 @@ class sits between them and
     def next(self) -> 'Optional[Enum_TransType]':
         """Next header, as parsed off the wire.
 
-        Shared by every subclass rather than fallback-role-only; see
-        :class:`_NextHeaderData` for why that is sound.
+        Shared by every subclass rather than fallback-role-only, since each of
+        their data models records the Next Header value under this name.
 
         :data:`None` when the declared length would have overrun what remained
         of the chain and the walk stopped instead of trusting it; see the
diff --git a/pcapkit/protocols/internet/ipv6_opts.py b/pcapkit/protocols/internet/ipv6_opts.py
index 16cea5cd6..87c924e40 100644
--- a/pcapkit/protocols/internet/ipv6_opts.py
+++ b/pcapkit/protocols/internet/ipv6_opts.py
@@ -1505,7 +1505,7 @@ def _make_opt_pad(self, code: 'Enum_Option', opt: 'Optional[Data_PadOption]' = N
             :attr:`Data_PadOption.length
             <pcapkit.protocols.data.internet.ipv6_opts.Option.length>` counts
             the *whole* option, whereas :attr:`Schema_PadOption.len
-            <pcapkit.protocols.schema.internet.ipv6_opts.PadOption.len>` is the
+            <pcapkit.protocols.schema.internet.ipv6_opts.Option.len>` is the
             ``Opt Data Len`` field: two octets fewer, and absent altogether for a
             ``Pad1``. ``opt`` is honoured so that re-making a parsed padding
             option keeps its type and size. A ``PadN`` with ``length`` ``0`` is
diff --git a/pcapkit/protocols/internet/ipv6_route.py b/pcapkit/protocols/internet/ipv6_route.py
index 27492d240..cf97d6409 100644
--- a/pcapkit/protocols/internet/ipv6_route.py
+++ b/pcapkit/protocols/internet/ipv6_route.py
@@ -92,6 +92,12 @@ class IPv6_Route(IPv6_Ext[Data_IPv6_Route, Schema_IPv6_Route],
          - :meth:`~pcapkit.protocols.internet.ipv6_route.IPv6_Route._read_data_type_rpl`
          - :meth:`~pcapkit.protocols.internet.ipv6_route.IPv6_Route._make_data_type_rpl`
 
+    .. versionchanged:: 1.3.4
+
+       :attr:`length`, and the ``length`` field of the parsed data model, is
+       the header's size in octets rather than the raw Hdr Ext Len value
+       (:issue:`218`).
+
     .. versionchanged:: 1.5.0
 
        * Hdr Ext Len is in 8-octet units both on read and on build
diff --git a/pcapkit/protocols/internet/mh.py b/pcapkit/protocols/internet/mh.py
index 65cbebda4..be332e597 100644
--- a/pcapkit/protocols/internet/mh.py
+++ b/pcapkit/protocols/internet/mh.py
@@ -3003,12 +3003,12 @@ def _read_opt_pad(self, schema: 'Schema_PadOption', *,
         Note:
             A ``Pad1`` option occupies a single octet and carries no
             ``Option Length`` field, so its
-            :attr:`~pcapkit.protocols.data.internet.mh.PadOption.length` is
+            :attr:`~pcapkit.protocols.data.internet.mh.Option.length` is
             ``1`` rather than ``length + 2``. That one-octet wire shape is
             enforced by
             :class:`~pcapkit.protocols.schema.internet.mh.PadOption` itself,
             which sizes both the length octet and the padding data from the
-            option type [:rfc:`6275#section-6.2.5`]; ``clen`` is therefore
+            option type [:rfc:`6275#section-6.2.2`]; ``clen`` is therefore
             always ``0`` here for a parsed ``Pad1``, and the check below only
             guards a schema built by hand. A ``PadN`` whose ``Option Length``
             is ``0`` is a valid two-octet padding option
@@ -7744,7 +7744,7 @@ def _make_pad_options(self, offset: 'int') -> 'tuple[list[Schema_PadOption], int
             ``pad_len`` octets means an ``Option Length`` of ``pad_len - 2``.
             One or two octets are padded with ``Pad1`` options instead, that
             being the only form which can occupy a single octet
-            [:rfc:`6275#section-6.2.5`]; two octets need two separate ``Pad1``
+            [:rfc:`6275#section-6.2.2`]; two octets need two separate ``Pad1``
             schemas, since a schema instance is mutable and must not be shared
             between two entries of the option list.
 
@@ -7769,7 +7769,7 @@ def _pad_mh_message(self, data: 'Schema_Packet | bytes') -> 'Schema_Packet | byt
 
         Note:
             The padding goes into the message's mobility options, which is where
-            :rfc:`6275#section-6.2.5` puts it. A message whose body is opaque has
+            :rfc:`6275#section-6.1.1` puts it. A message whose body is opaque has
             nowhere to put it --
             :class:`~pcapkit.protocols.schema.internet.mh.UnknownMessage` and
             :class:`~pcapkit.protocols.schema.internet.mh.ExperimentalMessage`
@@ -7913,9 +7913,9 @@ def _make_opt_pad(self, type: 'Enum_Option', option: 'Optional[Data_PadOption]'
 
         Note:
             :attr:`Data_PadOption.length
-            <pcapkit.protocols.data.internet.mh.PadOption.length>` counts the
+            <pcapkit.protocols.data.internet.mh.Option.length>` counts the
             *whole* option, whereas :attr:`Schema_PadOption.length
-            <pcapkit.protocols.schema.internet.mh.PadOption.length>` is the
+            <pcapkit.protocols.schema.internet.mh.Option.length>` is the
             ``Option Length`` field -- two octets fewer, and absent altogether
             for a ``Pad1``. Copying one into the other unconverted would make a
             re-made parsed ``PadN`` come back two octets too long.
diff --git a/pcapkit/protocols/schema/internet/hip.py b/pcapkit/protocols/schema/internet/hip.py
index c7c5346fd..52e9c1610 100644
--- a/pcapkit/protocols/schema/internet/hip.py
+++ b/pcapkit/protocols/schema/internet/hip.py
@@ -287,10 +287,11 @@ def transport_format_list_len(pkt: 'dict[str, Any]') -> 'int':
     its own ``type`` field, since a TF type *is* a HIP parameter type number
     -- which is why ``formats``' ``item_type`` is
     ``EnumField(length=2, ...)``, the width of the items at all three of
-    :func:`two_octet_prefix_list_len`'s call sites as well. This function only answers how many *bytes* the
-    list occupies; getting that number right and the item width wrong (one
-    octet) would still corrupt every non-empty list, just by reading twice as
-    many entries as the wire holds instead of dropping octets.
+    :func:`two_octet_prefix_list_len`'s call sites as well. This function
+    only answers how many *bytes* the list occupies; getting that number
+    right and the item width wrong -- one octet instead of two -- would still
+    corrupt every non-empty list, just by reading twice as many entries as
+    the wire holds instead of dropping octets.
 
     Args:
         pkt: Parameter unpacked schema.
diff --git a/pcapkit/protocols/schema/internet/mh.py b/pcapkit/protocols/schema/internet/mh.py
index f809e1544..b4d7f38bf 100644
--- a/pcapkit/protocols/schema/internet/mh.py
+++ b/pcapkit/protocols/schema/internet/mh.py
@@ -408,7 +408,7 @@ def pad_opt_data_len(pkt: 'dict[str, Any]') -> 'int':
 
     Note:
         A ``Pad1`` option is a single octet with neither an ``Option Length``
-        field nor any option data (c.f. :rfc:`6275#section-6.2.5`), which is why
+        field nor any option data (c.f. :rfc:`6275#section-6.2.2`), which is why
         :attr:`Option.length` is declared as a
         :class:`~pcapkit.corekit.fields.misc.ConditionalField` and is skipped
         for it. A skipped conditional field is *recorded* in the packet data as
@@ -664,8 +664,8 @@ class PadOption(Option, code=[Enum_Option.Pad1,
     The two padding options do **not** share a wire shape: a ``Pad1`` option is
     a lone type octet, whereas a ``PadN`` option is a type octet, an
     ``Option Length`` octet, and that many padding octets
-    [:rfc:`6275#section-6.2.5`]. Both the ``Option Length`` octet
-    (:attr:`Option.length`) and the padding data
+    [:rfc:`6275#section-6.2.2`, :rfc:`6275#section-6.2.3`]. Both the
+    ``Option Length`` octet (:attr:`Option.length`) and the padding data
     (:attr:`self.data <PadOption.data>`) are therefore sized from the option
     type, so that a ``Pad1`` option consumes exactly one octet.
 
@@ -680,7 +680,15 @@ def __init__(self, type: 'Enum_Option', length: 'int', data: 'bytes') -> 'None':
 
 @schema_final
 class BindingRefreshAdviceOption(Option, code=Enum_Option.Binding_Refresh_Advice):
-    """Header schema for MH binding refresh advice options."""
+    """Header schema for MH binding refresh advice options.
+
+    .. versionremoved:: 1.1.0
+
+       ``BindRefreshAdviceOption``, this class's former name, and its
+       re-export ``pcapkit.protocols.schema.internet.MH_BindRefreshAdviceOption``,
+       with no alias.
+
+    """
 
     #: Refresh interval. One time unit is 4 seconds [:rfc:`6275#section-6.2.4`].
     interval: 'int' = UInt16Field()
@@ -715,7 +723,16 @@ def __init__(self, type: 'Enum_Option', length: 'int', home: 'int', careof: 'int
 
 @schema_final
 class AuthorizationDataOption(Option, code=Enum_Option.Authorization_Data):
-    """Header schema for MH binding authorization data options."""
+    """Header schema for MH binding authorization data options.
+
+    .. versionremoved:: 1.1.0
+
+       ``BindingAuthorizationDataOption``, this class's former name, and
+       its re-export
+       ``pcapkit.protocols.schema.internet.MH_BindingAuthorizationDataOption``,
+       with no alias.
+
+    """
 
     #: Authenticator.
     data: 'bytes' = BytesField(length=lambda pkt: pkt['length'])