diff --git a/client/ayon_core/hosts/nuke/api/lib.py b/client/ayon_core/hosts/nuke/api/lib.py
index a2ec8fdb98..c11a9d9be0 100644
--- a/client/ayon_core/hosts/nuke/api/lib.py
+++ b/client/ayon_core/hosts/nuke/api/lib.py
@@ -720,17 +720,17 @@ def get_created_node_imageio_setting_legacy(nodeclass, creator, subset):
         "`{}`: Missing mandatory kwargs `host`, `cls`".format(__file__))
 
     imageio_nodes = get_nuke_imageio_settings()["nodes"]
-    required_nodes = imageio_nodes["requiredNodes"]
+    required_nodes = imageio_nodes["required_nodes"]
 
     # HACK: for backward compatibility this needs to be optional
-    override_nodes = imageio_nodes.get("overrideNodes", [])
+    override_nodes = imageio_nodes.get("override_nodes", [])
 
     imageio_node = None
     for node in required_nodes:
         log.info(node)
         if (
-                nodeclass in node["nukeNodeClass"]
-                and creator in node["plugins"]
+            nodeclass in node["nuke_node_class"]
+            and creator in node["plugins"]
         ):
             imageio_node = node
             break
@@ -741,10 +741,10 @@ def get_created_node_imageio_setting_legacy(nodeclass, creator, subset):
     override_imageio_node = None
     for onode in override_nodes:
         log.info(onode)
-        if nodeclass not in node["nukeNodeClass"]:
+        if nodeclass not in onode["nuke_node_class"]:
             continue
 
-        if creator not in node["plugins"]:
+        if creator not in onode["plugins"]:
             continue
 
         if (
@@ -766,26 +766,33 @@ def get_created_node_imageio_setting_legacy(nodeclass, creator, subset):
         knob_names = [k["name"] for k in imageio_node["knobs"]]
 
         for oknob in override_imageio_node["knobs"]:
+            oknob_name = oknob["name"]
+            oknob_type = oknob["type"]
+            oknob_value = oknob[oknob_type]
             for knob in imageio_node["knobs"]:
-                # override matching knob name
-                if oknob["name"] == knob["name"]:
-                    log.debug(
-                        "_ overriding knob: `{}` > `{}`".format(
-                            knob, oknob
-                        ))
-                    if not oknob["value"]:
-                        # remove original knob if no value found in oknob
-                        imageio_node["knobs"].remove(knob)
-                    else:
-                        # override knob value with oknob's
-                        knob["value"] = oknob["value"]
-
+                knob_name = knob["name"]
                 # add missing knobs into imageio_node
-                if oknob["name"] not in knob_names:
+                if oknob_name not in knob_names:
                     log.debug(
                         "_ adding knob: `{}`".format(oknob))
                     imageio_node["knobs"].append(oknob)
-                    knob_names.append(oknob["name"])
+                    knob_names.append(oknob_name)
+                    continue
+
+                # override matching knob name
+                if oknob_name != knob_name:
+                    continue
+
+                knob_type = knob["type"]
+                log.debug(
+                    "_ overriding knob: `{}` > `{}`".format(knob, oknob)
+                )
+                if not oknob_value:
+                    # remove original knob if no value found in oknob
+                    imageio_node["knobs"].remove(knob)
+                else:
+                    # override knob value with oknob's
+                    knob[knob_type] = oknob_value
 
     log.info("ImageIO node: {}".format(imageio_node))
     return imageio_node
@@ -795,14 +802,14 @@ def get_imageio_node_setting(node_class, plugin_name, subset):
     ''' Get preset data for dataflow (fileType, compression, bitDepth)
     '''
     imageio_nodes = get_nuke_imageio_settings()["nodes"]
-    required_nodes = imageio_nodes["requiredNodes"]
+    required_nodes = imageio_nodes["required_nodes"]
 
     imageio_node = None
     for node in required_nodes:
         log.info(node)
         if (
-                node_class in node["nukeNodeClass"]
-                and plugin_name in node["plugins"]
+            node_class in node["nuke_node_class"]
+            and plugin_name in node["plugins"]
         ):
             imageio_node = node
             break
@@ -830,14 +837,14 @@ def get_imageio_node_override_setting(
     ''' Get imageio node overrides from settings
     '''
     imageio_nodes = get_nuke_imageio_settings()["nodes"]
-    override_nodes = imageio_nodes["overrideNodes"]
+    override_nodes = imageio_nodes["override_nodes"]
 
     # find matching override node
     override_imageio_node = None
     for onode in override_nodes:
         log.debug("__ onode: {}".format(onode))
         log.debug("__ subset: {}".format(subset))
-        if node_class not in onode["nukeNodeClass"]:
+        if node_class not in onode["nuke_node_class"]:
             continue
 
         if plugin_name not in onode["plugins"]:
@@ -862,26 +869,31 @@ def get_imageio_node_override_setting(
         knob_names = [k["name"] for k in knobs_settings]
 
         for oknob in override_imageio_node["knobs"]:
+            oknob_name = oknob["name"]
+            oknob_type = oknob["type"]
+            oknob_value = oknob[oknob_type]
             for knob in knobs_settings:
-                # override matching knob name
-                if oknob["name"] == knob["name"]:
-                    log.debug(
-                        "_ overriding knob: `{}` > `{}`".format(
-                            knob, oknob
-                        ))
-                    if not oknob["value"]:
-                        # remove original knob if no value found in oknob
-                        knobs_settings.remove(knob)
-                    else:
-                        # override knob value with oknob's
-                        knob["value"] = oknob["value"]
-
                 # add missing knobs into imageio_node
-                if oknob["name"] not in knob_names:
-                    log.debug(
-                        "_ adding knob: `{}`".format(oknob))
+                if oknob_name not in knob_names:
+                    log.debug("_ adding knob: `{}`".format(oknob))
                     knobs_settings.append(oknob)
-                    knob_names.append(oknob["name"])
+                    knob_names.append(oknob_name)
+                    continue
+
+                if oknob_name != knob["name"]:
+                    continue
+
+                knob_type = knob["type"]
+                # override matching knob name
+                log.debug(
+                    "_ overriding knob: `{}` > `{}`".format(knob, oknob)
+                )
+                if not oknob_value:
+                    # remove original knob if no value found in oknob
+                    knobs_settings.remove(knob)
+                else:
+                    # override knob value with oknob's
+                    knob[knob_type] = oknob_value
 
     return knobs_settings
 
@@ -890,7 +902,7 @@ def get_imageio_input_colorspace(filename):
     ''' Get input file colorspace based on regex in settings.
     '''
     imageio_regex_inputs = (
-        get_nuke_imageio_settings()["regexInputs"]["inputs"])
+        get_nuke_imageio_settings()["regex_inputs"]["inputs"])
 
     preset_clrsp = None
     for regexInput in imageio_regex_inputs:
@@ -1177,8 +1189,9 @@ def create_prenodes(
 ):
     last_node = None
     for_dependency = {}
-    for name, node in nodes_setting.items():
+    for node in nodes_setting:
         # get attributes
+        name = node["name"]
         nodeclass = node["nodeclass"]
         knobs = node["knobs"]
 
@@ -1240,8 +1253,8 @@ def create_write_node(
         name (str): name of node
         data (dict): creator write instance data
         input (node)[optional]: selected node to connect to
-        prenodes (dict)[optional]:
-            nodes to be created before write with dependency
+        prenodes (Optional[list[dict]]): nodes to be created before write
+            with dependency
         review (bool)[optional]: adding review knob
         farm (bool)[optional]: rendering workflow target
         kwargs (dict)[optional]: additional key arguments for formatting
@@ -1270,7 +1283,7 @@ def create_write_node(
     Return:
         node (obj): group node with avalon data as Knobs
     '''
-    prenodes = prenodes or {}
+    prenodes = prenodes or []
 
     # filtering variables
     plugin_name = data["creator"]
@@ -1285,7 +1298,8 @@ def create_write_node(
 
     for knob in imageio_writes["knobs"]:
         if knob["name"] == "file_type":
-            ext = knob["value"]
+            knot_type = knob["type"]
+            ext = knob[knot_type]
 
     data.update({
         "imageio_writes": imageio_writes,
@@ -1400,12 +1414,17 @@ def create_write_node(
     # set tile color
     tile_color = next(
         iter(
-            k["value"] for k in imageio_writes["knobs"]
+            k[k["type"]] for k in imageio_writes["knobs"]
             if "tile_color" in k["name"]
         ), [255, 0, 0, 255]
     )
+    new_tile_color = []
+    for c in tile_color:
+        if isinstance(c, float):
+            c = int(c * 255)
+        new_tile_color.append(c)
     GN["tile_color"].setValue(
-        color_gui_to_int(tile_color))
+        color_gui_to_int(new_tile_color))
 
     return GN
 
@@ -1701,42 +1720,32 @@ def set_node_knobs_from_settings(node, knob_settings, **kwargs):
     """
     for knob in knob_settings:
         log.debug("__ knob: {}".format(pformat(knob)))
-        knob_type = knob["type"]
         knob_name = knob["name"]
-
         if knob_name not in node.knobs():
             continue
 
+        knob_type = knob["type"]
+        knob_value = knob[knob_type]
         if knob_type == "expression":
-            knob_expression = knob["expression"]
-            node[knob_name].setExpression(
-                knob_expression
-            )
+            node[knob_name].setExpression(knob_value)
             continue
 
         # first deal with formattable knob settings
         if knob_type == "formatable":
-            template = knob["template"]
-            to_type = knob["to_type"]
+            template = knob_value["template"]
+            to_type = knob_value["to_type"]
             try:
-                _knob_value = template.format(
-                    **kwargs
-                )
+                knob_value = template.format(**kwargs)
             except KeyError as msg:
                 raise KeyError(
                     "Not able to format expression: {}".format(msg))
 
             # convert value to correct type
             if to_type == "2d_vector":
-                knob_value = _knob_value.split(";").split(",")
-            else:
-                knob_value = _knob_value
+                knob_value = knob_value.split(";").split(",")
 
             knob_type = to_type
 
-        else:
-            knob_value = knob["value"]
-
         if not knob_value:
             continue
 
@@ -1747,29 +1756,46 @@ def set_node_knobs_from_settings(node, knob_settings, **kwargs):
 
 
 def convert_knob_value_to_correct_type(knob_type, knob_value):
-    # first convert string types to string
-    # just to ditch unicode
-    if isinstance(knob_value, six.text_type):
-        knob_value = str(knob_value)
+    # Convert 'text' to string to avoid unicode
+    if knob_type == "text":
+        return str(knob_value)
 
-    # set correctly knob types
-    if knob_type == "bool":
-        knob_value = bool(knob_value)
-    elif knob_type == "decimal_number":
-        knob_value = float(knob_value)
-    elif knob_type == "number":
-        knob_value = int(knob_value)
-    elif knob_type == "text":
-        knob_value = knob_value
-    elif knob_type == "color_gui":
-        knob_value = color_gui_to_int(knob_value)
-    elif knob_type in ["2d_vector", "3d_vector", "color", "box"]:
-        knob_value = [float(val_) for val_ in knob_value]
+    if knob_type == "boolean":
+        return bool(knob_value)
+
+    if knob_type == "decimal_number":
+        return float(knob_value)
+
+    if knob_type == "number":
+        return int(knob_value)
+
+    if knob_type == "color_gui":
+        new_color = []
+        for value in knob_value:
+            if isinstance(value, float):
+                value = int(value * 255)
+            new_color.append(value)
+        return color_gui_to_int(new_color)
+
+    if knob_type == "box":
+        return [
+            knob_value["x"], knob_value["y"],
+            knob_value["r"], knob_value["t"]
+        ]
+
+    if knob_type == "vector_2d":
+        return [knob_value["x"], knob_value["y"]]
+
+    if knob_type == "vector_3d":
+        return [knob_value["x"], knob_value["y"], knob_value["z"]]
 
     return knob_value
 
 
 def color_gui_to_int(color_gui):
+    # Append alpha channel if not present
+    if len(color_gui) == 3:
+        color_gui = list(color_gui) + [255]
     hex_value = (
         "0x{0:0>2x}{1:0>2x}{2:0>2x}{3:0>2x}").format(*color_gui)
     return int(hex_value, 16)
@@ -2016,41 +2042,21 @@ class WorkfileSettings(object):
             host_name="nuke"
         )
 
-        workfile_settings = imageio_host["workfile"]
         viewer_process_settings = imageio_host["viewer"]["viewerProcess"]
+        workfile_settings = imageio_host["workfile"]
+        color_management = workfile_settings["color_management"]
+        native_ocio_config = workfile_settings["native_ocio_config"]
 
         if not config_data:
-            # TODO: backward compatibility for old projects - remove later
-            # perhaps old project overrides is having it set to older version
-            # with use of `customOCIOConfigPath`
-            resolved_path = None
-            if workfile_settings.get("customOCIOConfigPath"):
-                unresolved_path = workfile_settings["customOCIOConfigPath"]
-                ocio_paths = unresolved_path[platform.system().lower()]
+            # no ocio config found and no custom path used
+            if self._root_node["colorManagement"].value() \
+                    not in color_management:
+                self._root_node["colorManagement"].setValue(color_management)
 
-                for ocio_p in ocio_paths:
-                    resolved_path = str(ocio_p).format(**os.environ)
-                    if not os.path.exists(resolved_path):
-                        continue
-
-            if resolved_path:
-                # set values to root
-                self._root_node["colorManagement"].setValue("OCIO")
-                self._root_node["OCIO_config"].setValue("custom")
-                self._root_node["customOCIOConfigPath"].setValue(
-                    resolved_path)
-            else:
-                # no ocio config found and no custom path used
-                if self._root_node["colorManagement"].value() \
-                        not in str(workfile_settings["colorManagement"]):
-                    self._root_node["colorManagement"].setValue(
-                        str(workfile_settings["colorManagement"]))
-
-                # second set ocio version
-                if self._root_node["OCIO_config"].value() \
-                        not in str(workfile_settings["OCIO_config"]):
-                    self._root_node["OCIO_config"].setValue(
-                        str(workfile_settings["OCIO_config"]))
+            # second set ocio version
+            if self._root_node["OCIO_config"].value() \
+                    not in native_ocio_config:
+                self._root_node["OCIO_config"].setValue(native_ocio_config)
 
         else:
             # OCIO config path is defined from prelaunch hook
@@ -2063,22 +2069,17 @@ class WorkfileSettings(object):
                     residual_path
                 ))
 
-        # we dont need the key anymore
-        workfile_settings.pop("customOCIOConfigPath", None)
-        workfile_settings.pop("colorManagement", None)
-        workfile_settings.pop("OCIO_config", None)
-
         # get monitor lut from settings respecting Nuke version differences
-        monitor_lut = workfile_settings.pop("monitorLut", None)
+        monitor_lut = workfile_settings["thumbnail_space"]
         monitor_lut_data = self._get_monitor_settings(
-            viewer_process_settings, monitor_lut)
-
-        # set monitor related knobs luts (MonitorOut, Thumbnails)
-        for knob, value_ in monitor_lut_data.items():
-            workfile_settings[knob] = value_
+            viewer_process_settings, monitor_lut
+        )
+        monitor_lut_data["workingSpaceLUT"] = (
+            workfile_settings["working_space"]
+        )
 
         # then set the rest
-        for knob, value_ in workfile_settings.items():
+        for knob, value_ in monitor_lut_data.items():
             # skip unfilled ocio config path
             # it will be dict in value
             if isinstance(value_, dict):
@@ -2360,25 +2361,8 @@ Reopening Nuke should synchronize these paths and resolve any discrepancies.
             if not write_node:
                 return
 
-            try:
-                # write all knobs to node
-                for knob in nuke_imageio_writes["knobs"]:
-                    value = knob["value"]
-                    if isinstance(value, six.text_type):
-                        value = str(value)
-                    if str(value).startswith("0x"):
-                        value = int(value, 16)
-
-                    log.debug("knob: {}| value: {}".format(
-                        knob["name"], value
-                    ))
-                    write_node[knob["name"]].setValue(value)
-            except TypeError:
-                log.warning(
-                    "Legacy workflow didn't work, switching to current")
-
-                set_node_knobs_from_settings(
-                    write_node, nuke_imageio_writes["knobs"])
+            set_node_knobs_from_settings(
+                write_node, nuke_imageio_writes["knobs"])
 
     def set_reads_colorspace(self, read_clrs_inputs):
         """ Setting colorspace to Read nodes
@@ -2456,7 +2440,7 @@ Reopening Nuke should synchronize these paths and resolve any discrepancies.
             log.error(_error)
 
         log.info("Setting colorspace to read nodes...")
-        read_clrs_inputs = nuke_colorspace["regexInputs"].get("inputs", [])
+        read_clrs_inputs = nuke_colorspace["regex_inputs"].get("inputs", [])
         if read_clrs_inputs:
             self.set_reads_colorspace(read_clrs_inputs)
 
diff --git a/client/ayon_core/hosts/nuke/api/plugin.py b/client/ayon_core/hosts/nuke/api/plugin.py
index 59042acee1..bf338a3010 100644
--- a/client/ayon_core/hosts/nuke/api/plugin.py
+++ b/client/ayon_core/hosts/nuke/api/plugin.py
@@ -396,17 +396,25 @@ class NukeWriteCreator(NukeCreator):
 
         # plugin settings
         plugin_settings = self.get_creator_settings(project_settings)
-
+        temp_rendering_path_template = (
+            plugin_settings.get("temp_rendering_path_template")
+            or self.temp_rendering_path_template
+        )
+        # TODO remove template key replacements
+        temp_rendering_path_template = (
+            temp_rendering_path_template
+            .replace("{product[name]}", "{subset}")
+            .replace("{product[type]}", "{family}")
+            .replace("{task[name]}", "{task}")
+            .replace("{folder[name]}", "{asset}")
+        )
         # individual attributes
         self.instance_attributes = plugin_settings.get(
             "instance_attributes") or self.instance_attributes
         self.prenodes = plugin_settings["prenodes"]
         self.default_variants = plugin_settings.get(
             "default_variants") or self.default_variants
-        self.temp_rendering_path_template = (
-            plugin_settings.get("temp_rendering_path_template")
-            or self.temp_rendering_path_template
-        )
+        self.temp_rendering_path_template = temp_rendering_path_template
 
 
 class OpenPypeCreator(LegacyCreator):
@@ -1061,7 +1069,7 @@ class AbstractWriteRender(OpenPypeCreator):
     icon = "sign-out"
     defaults = ["Main", "Mask"]
     knobs = []
-    prenodes = {}
+    prenodes = []
 
     def __init__(self, *args, **kwargs):
         super(AbstractWriteRender, self).__init__(*args, **kwargs)
@@ -1167,7 +1175,7 @@ class AbstractWriteRender(OpenPypeCreator):
             bool: True if legacy
         """
         imageio_nodes = get_nuke_imageio_settings()["nodes"]
-        node = imageio_nodes["requiredNodes"][0]
+        node = imageio_nodes["required_nodes"][0]
         if "type" not in node["knobs"][0]:
             # if type is not yet in project anatomy
             return True
diff --git a/client/ayon_core/hosts/nuke/plugins/load/load_clip.py b/client/ayon_core/hosts/nuke/plugins/load/load_clip.py
index 8bce2eac6e..31b523fbc8 100644
--- a/client/ayon_core/hosts/nuke/plugins/load/load_clip.py
+++ b/client/ayon_core/hosts/nuke/plugins/load/load_clip.py
@@ -53,7 +53,7 @@ class LoadClip(plugin.NukeLoader):
     color = "white"
 
     # Loaded from settings
-    _representations = []
+    representations_include = []
 
     script_start = int(nuke.root()["first_frame"].value())
 
@@ -82,7 +82,7 @@ class LoadClip(plugin.NukeLoader):
 
     @classmethod
     def get_representations(cls):
-        return cls._representations or cls.representations
+        return cls.representations_include or cls.representations
 
     def load(self, context, name, namespace, options):
         """Load asset via database
@@ -457,7 +457,7 @@ class LoadClip(plugin.NukeLoader):
         colorspace = repre_data.get("colorspace")
         colorspace = colorspace or version_data.get("colorspace")
 
-        # colorspace from `project_settings/nuke/imageio/regexInputs`
+        # colorspace from `project_settings/nuke/imageio/regex_inputs`
         iio_colorspace = get_imageio_input_colorspace(path)
 
         # Set colorspace defined in version data
diff --git a/client/ayon_core/hosts/nuke/plugins/load/load_image.py b/client/ayon_core/hosts/nuke/plugins/load/load_image.py
index b9f47bddc9..e9435ec10a 100644
--- a/client/ayon_core/hosts/nuke/plugins/load/load_image.py
+++ b/client/ayon_core/hosts/nuke/plugins/load/load_image.py
@@ -47,7 +47,7 @@ class LoadImage(load.LoaderPlugin):
     color = "white"
 
     # Loaded from settings
-    _representations = []
+    representations_include = []
 
     node_name_template = "{class_name}_{ext}"
 
@@ -64,7 +64,7 @@ class LoadImage(load.LoaderPlugin):
 
     @classmethod
     def get_representations(cls):
-        return cls._representations or cls.representations
+        return cls.representations_include or cls.representations
 
     def load(self, context, name, namespace, options):
         self.log.info("__ options: `{}`".format(options))
diff --git a/client/ayon_core/hosts/nuke/plugins/publish/collect_nuke_instance_data.py b/client/ayon_core/hosts/nuke/plugins/publish/collect_nuke_instance_data.py
index 449a1cc935..75380bf409 100644
--- a/client/ayon_core/hosts/nuke/plugins/publish/collect_nuke_instance_data.py
+++ b/client/ayon_core/hosts/nuke/plugins/publish/collect_nuke_instance_data.py
@@ -12,7 +12,7 @@ class CollectInstanceData(pyblish.api.InstancePlugin):
     hosts = ["nuke", "nukeassist"]
 
     # presets
-    sync_workfile_version_on_families = []
+    sync_workfile_version_on_product_types = []
 
     def process(self, instance):
         family = instance.data["family"]
@@ -25,7 +25,7 @@ class CollectInstanceData(pyblish.api.InstancePlugin):
         pixel_aspect = format_.pixelAspect()
 
         # sync workfile version
-        if family in self.sync_workfile_version_on_families:
+        if family in self.sync_workfile_version_on_product_types:
             self.log.debug(
                 "Syncing version with workfile for '{}'".format(
                     family
diff --git a/client/ayon_core/hosts/nuke/plugins/publish/extract_review_intermediates.py b/client/ayon_core/hosts/nuke/plugins/publish/extract_review_intermediates.py
index a00c1c593f..1f4410d347 100644
--- a/client/ayon_core/hosts/nuke/plugins/publish/extract_review_intermediates.py
+++ b/client/ayon_core/hosts/nuke/plugins/publish/extract_review_intermediates.py
@@ -50,6 +50,7 @@ class ExtractReviewIntermediates(publish.Extractor):
             cls.outputs = current_setting["outputs"]
 
     def process(self, instance):
+        # TODO 'families' should not be included for filtering of outputs
         families = set(instance.data["families"])
 
         # add main family to make sure all families are compared
@@ -75,29 +76,33 @@ class ExtractReviewIntermediates(publish.Extractor):
         # generate data
         with maintained_selection():
             generated_repres = []
-            for o_name, o_data in self.outputs.items():
+            for o_data in self.outputs:
+                o_name = o_data["name"]
                 self.log.debug(
                     "o_name: {}, o_data: {}".format(o_name, pformat(o_data)))
-                f_families = o_data["filter"]["families"]
+                f_product_types = o_data["filter"]["product_types"]
                 f_task_types = o_data["filter"]["task_types"]
-                f_subsets = o_data["filter"]["subsets"]
+                product_names = o_data["filter"]["product_names"]
 
                 self.log.debug(
-                    "f_families `{}` > families: {}".format(
-                        f_families, families))
+                    "f_product_types `{}` > families: {}".format(
+                        f_product_types, families))
 
                 self.log.debug(
                     "f_task_types `{}` > task_type: {}".format(
                         f_task_types, task_type))
 
                 self.log.debug(
-                    "f_subsets `{}` > subset: {}".format(
-                        f_subsets, subset))
+                    "product_names `{}` > subset: {}".format(
+                        product_names, subset))
 
                 # test if family found in context
                 # using intersection to make sure all defined
                 # families are present in combination
-                if f_families and not families.intersection(f_families):
+                if (
+                    f_product_types
+                    and not families.intersection(f_product_types)
+                ):
                     continue
 
                 # test task types from filter
@@ -105,8 +110,9 @@ class ExtractReviewIntermediates(publish.Extractor):
                     continue
 
                 # test subsets from filter
-                if f_subsets and not any(
-                        re.search(s, subset) for s in f_subsets):
+                if product_names and not any(
+                    re.search(p, subset) for p in product_names
+                ):
                     continue
 
                 self.log.debug(
@@ -117,7 +123,7 @@ class ExtractReviewIntermediates(publish.Extractor):
                 # check if settings have more then one preset
                 # so we dont need to add outputName to representation
                 # in case there is only one preset
-                multiple_presets = len(self.outputs.keys()) > 1
+                multiple_presets = len(self.outputs) > 1
 
                 # adding bake presets to instance data for other plugins
                 if not instance.data.get("bakePresets"):
diff --git a/client/ayon_core/hosts/nuke/plugins/publish/extract_slate_frame.py b/client/ayon_core/hosts/nuke/plugins/publish/extract_slate_frame.py
index 0c4823b1aa..6918e4f50f 100644
--- a/client/ayon_core/hosts/nuke/plugins/publish/extract_slate_frame.py
+++ b/client/ayon_core/hosts/nuke/plugins/publish/extract_slate_frame.py
@@ -29,9 +29,15 @@ class ExtractSlateFrame(publish.Extractor):
 
     # Settings values
     key_value_mapping = {
-        "f_submission_note": [True, "{comment}"],
-        "f_submitting_for": [True, "{intent[value]}"],
-        "f_vfx_scope_of_work": [False, ""]
+        "f_submission_note": {
+            "enabled": True, "template": "{comment}"
+        },
+        "f_submitting_for": {
+            "enabled": True, "template": "{intent[value]}"
+        },
+        "f_vfx_scope_of_work": {
+            "enabled": False, "template": ""
+        }
     }
 
     def process(self, instance):
@@ -316,11 +322,11 @@ class ExtractSlateFrame(publish.Extractor):
         })
 
         for key, _values in self.key_value_mapping.items():
-            enabled, template = _values
-            if not enabled:
+            if not _values["enabled"]:
                 self.log.debug("Key \"{}\" is disabled".format(key))
                 continue
 
+            template = _values["template"]
             try:
                 value = template.format(**fill_data)
 
diff --git a/client/ayon_core/hosts/nuke/plugins/publish/help/validate_write_nodes.xml b/client/ayon_core/hosts/nuke/plugins/publish/help/validate_write_nodes.xml
index 1717622a45..96aa6e4494 100644
--- a/client/ayon_core/hosts/nuke/plugins/publish/help/validate_write_nodes.xml
+++ b/client/ayon_core/hosts/nuke/plugins/publish/help/validate_write_nodes.xml
@@ -25,7 +25,7 @@
             ### How to repair?
 
             Contact your supervisor or fix it in project settings at
-            'project_settings/nuke/imageio/nodes/requiredNodes' at knobs.
+            'project_settings/nuke/imageio/nodes/required_nodes' at knobs.
             Each '__legacy__' type has to be defined accordingly to its type.
         </description>
     </error>
diff --git a/client/ayon_core/hosts/nuke/plugins/publish/validate_knobs.py b/client/ayon_core/hosts/nuke/plugins/publish/validate_knobs.py
index 84efebab53..bede67dabe 100644
--- a/client/ayon_core/hosts/nuke/plugins/publish/validate_knobs.py
+++ b/client/ayon_core/hosts/nuke/plugins/publish/validate_knobs.py
@@ -30,6 +30,8 @@ class ValidateKnobs(pyblish.api.ContextPlugin):
     actions = [RepairContextAction]
     optional = True
 
+    knobs = "{}"
+
     def process(self, context):
         invalid = self.get_invalid(context, compute=True)
         if invalid:
@@ -61,6 +63,8 @@ class ValidateKnobs(pyblish.api.ContextPlugin):
         invalid_knobs = []
 
         for instance in context:
+            # Load fresh knobs data for each instance
+            settings_knobs = json.loads(cls.knobs)
 
             # Filter families.
             families = [instance.data["family"]]
@@ -74,12 +78,12 @@ class ValidateKnobs(pyblish.api.ContextPlugin):
                     family = family.split(".")[0]
 
                 # avoid families not in settings
-                if family not in cls.knobs:
+                if family not in settings_knobs:
                     continue
 
                 # get presets of knobs
-                for preset in cls.knobs[family]:
-                    knobs[preset] = cls.knobs[family][preset]
+                for preset in settings_knobs[family]:
+                    knobs[preset] = settings_knobs[family][preset]
 
             # Get invalid knobs.
             nodes = []
diff --git a/client/ayon_core/hosts/nuke/plugins/publish/validate_write_nodes.py b/client/ayon_core/hosts/nuke/plugins/publish/validate_write_nodes.py
index 7679022487..0244c1d504 100644
--- a/client/ayon_core/hosts/nuke/plugins/publish/validate_write_nodes.py
+++ b/client/ayon_core/hosts/nuke/plugins/publish/validate_write_nodes.py
@@ -86,7 +86,10 @@ class ValidateNukeWriteNode(
         # Collect key values of same type in a list.
         values_by_name = defaultdict(list)
         for knob_data in correct_data["knobs"]:
-            values_by_name[knob_data["name"]].append(knob_data["value"])
+            knob_type = knob_data["type"]
+            knob_value = knob_data[knob_type]
+
+            values_by_name[knob_data["name"]].append(knob_value)
 
         for knob_data in correct_data["knobs"]:
             knob_type = knob_data["type"]
@@ -97,7 +100,7 @@ class ValidateNukeWriteNode(
                 raise PublishXmlValidationError(
                     self, (
                         "Please update data in settings 'project_settings"
-                        "/nuke/imageio/nodes/requiredNodes'"
+                        "/nuke/imageio/nodes/required_nodes'"
                     ),
                     key="legacy"
                 )
diff --git a/client/ayon_core/hosts/nuke/startup/custom_write_node.py b/client/ayon_core/hosts/nuke/startup/custom_write_node.py
index 89dfde297c..5eb58a3679 100644
--- a/client/ayon_core/hosts/nuke/startup/custom_write_node.py
+++ b/client/ayon_core/hosts/nuke/startup/custom_write_node.py
@@ -127,8 +127,8 @@ class WriteNodeKnobSettingPanel(nukescripts.PythonPanel):
         knobs_nodes = []
         settings = [
             node_settings for node_settings
-            in get_nuke_imageio_settings()["nodes"]["overrideNodes"]
-            if node_settings["nukeNodeClass"] == "Write"
+            in get_nuke_imageio_settings()["nodes"]["override_nodes"]
+            if node_settings["nuke_node_class"] == "Write"
             and node_settings["subsets"]
         ]
         if not settings:
diff --git a/client/ayon_core/settings/ayon_settings.py b/client/ayon_core/settings/ayon_settings.py
index 775351eb38..e444a4dc10 100644
--- a/client/ayon_core/settings/ayon_settings.py
+++ b/client/ayon_core/settings/ayon_settings.py
@@ -133,192 +133,6 @@ def convert_system_settings(ayon_settings, default_settings, addon_versions):
 
 
 # --------- Project settings ---------
-def _convert_nuke_knobs(knobs):
-    new_knobs = []
-    for knob in knobs:
-        knob_type = knob["type"]
-
-        if knob_type == "boolean":
-            knob_type = "bool"
-
-        if knob_type != "bool":
-            value = knob[knob_type]
-        elif knob_type in knob:
-            value = knob[knob_type]
-        else:
-            value = knob["boolean"]
-
-        new_knob = {
-            "type": knob_type,
-            "name": knob["name"],
-        }
-        new_knobs.append(new_knob)
-
-        if knob_type == "formatable":
-            new_knob["template"] = value["template"]
-            new_knob["to_type"] = value["to_type"]
-            continue
-
-        value_key = "value"
-        if knob_type == "expression":
-            value_key = "expression"
-
-        elif knob_type == "color_gui":
-            value = _convert_color(value)
-
-        elif knob_type == "vector_2d":
-            value = [value["x"], value["y"]]
-
-        elif knob_type == "vector_3d":
-            value = [value["x"], value["y"], value["z"]]
-
-        elif knob_type == "box":
-            value = [value["x"], value["y"], value["r"], value["t"]]
-
-        new_knob[value_key] = value
-    return new_knobs
-
-
-def _convert_nuke_project_settings(ayon_settings, output):
-    if "nuke" not in ayon_settings:
-        return
-
-    ayon_nuke = ayon_settings["nuke"]
-
-    # --- Load ---
-    ayon_load = ayon_nuke["load"]
-    ayon_load["LoadClip"]["_representations"] = (
-        ayon_load["LoadClip"].pop("representations_include")
-    )
-    ayon_load["LoadImage"]["_representations"] = (
-        ayon_load["LoadImage"].pop("representations_include")
-    )
-
-    # --- Create ---
-    ayon_create = ayon_nuke["create"]
-    for creator_name in (
-        "CreateWritePrerender",
-        "CreateWriteImage",
-        "CreateWriteRender",
-    ):
-        create_plugin_settings = ayon_create[creator_name]
-        create_plugin_settings["temp_rendering_path_template"] = (
-            create_plugin_settings["temp_rendering_path_template"]
-            .replace("{product[name]}", "{subset}")
-            .replace("{product[type]}", "{family}")
-            .replace("{task[name]}", "{task}")
-            .replace("{folder[name]}", "{asset}")
-        )
-        new_prenodes = {}
-        for prenode in create_plugin_settings["prenodes"]:
-            name = prenode.pop("name")
-            prenode["knobs"] = _convert_nuke_knobs(prenode["knobs"])
-            new_prenodes[name] = prenode
-
-        create_plugin_settings["prenodes"] = new_prenodes
-
-    # --- Publish ---
-    ayon_publish = ayon_nuke["publish"]
-    slate_mapping = ayon_publish["ExtractSlateFrame"]["key_value_mapping"]
-    for key in tuple(slate_mapping.keys()):
-        value = slate_mapping[key]
-        slate_mapping[key] = [value["enabled"], value["template"]]
-
-    ayon_publish["ValidateKnobs"]["knobs"] = json.loads(
-        ayon_publish["ValidateKnobs"]["knobs"]
-    )
-
-    new_review_data_outputs = {}
-    outputs_settings = []
-    # Check deprecated ExtractReviewDataMov
-    # settings for backwards compatibility
-    deprecrated_review_settings = ayon_publish["ExtractReviewDataMov"]
-    current_review_settings = (
-        ayon_publish.get("ExtractReviewIntermediates")
-    )
-    if deprecrated_review_settings["enabled"]:
-        outputs_settings = deprecrated_review_settings["outputs"]
-    elif current_review_settings is None:
-        pass
-    elif current_review_settings["enabled"]:
-        outputs_settings = current_review_settings["outputs"]
-
-    for item in outputs_settings:
-        item_filter = item["filter"]
-        if "product_names" in item_filter:
-            item_filter["subsets"] = item_filter.pop("product_names")
-            item_filter["families"] = item_filter.pop("product_types")
-
-        reformat_nodes_config = item.get("reformat_nodes_config") or {}
-        reposition_nodes = reformat_nodes_config.get(
-            "reposition_nodes") or []
-
-        for reposition_node in reposition_nodes:
-            if "knobs" not in reposition_node:
-                continue
-            reposition_node["knobs"] = _convert_nuke_knobs(
-                reposition_node["knobs"]
-            )
-
-        name = item.pop("name")
-        new_review_data_outputs[name] = item
-
-    if deprecrated_review_settings["enabled"]:
-        deprecrated_review_settings["outputs"] = new_review_data_outputs
-    elif current_review_settings["enabled"]:
-        current_review_settings["outputs"] = new_review_data_outputs
-
-    collect_instance_data = ayon_publish["CollectInstanceData"]
-    if "sync_workfile_version_on_product_types" in collect_instance_data:
-        collect_instance_data["sync_workfile_version_on_families"] = (
-            collect_instance_data.pop(
-                "sync_workfile_version_on_product_types"))
-
-    # --- ImageIO ---
-    # NOTE 'monitorOutLut' is maybe not yet in v3 (ut should be)
-    ayon_imageio = ayon_nuke["imageio"]
-
-    # workfile
-    imageio_workfile = ayon_imageio["workfile"]
-    workfile_keys_mapping = (
-        ("color_management", "colorManagement"),
-        ("native_ocio_config", "OCIO_config"),
-        ("working_space", "workingSpaceLUT"),
-        ("thumbnail_space", "monitorLut"),
-    )
-    for src, dst in workfile_keys_mapping:
-        if (
-            src in imageio_workfile
-            and dst not in imageio_workfile
-        ):
-            imageio_workfile[dst] = imageio_workfile.pop(src)
-
-    # regex inputs
-    if "regex_inputs" in ayon_imageio:
-        ayon_imageio["regexInputs"] = ayon_imageio.pop("regex_inputs")
-
-    # nodes
-    ayon_imageio_nodes = ayon_imageio["nodes"]
-    if "required_nodes" in ayon_imageio_nodes:
-        ayon_imageio_nodes["requiredNodes"] = (
-            ayon_imageio_nodes.pop("required_nodes"))
-    if "override_nodes" in ayon_imageio_nodes:
-        ayon_imageio_nodes["overrideNodes"] = (
-            ayon_imageio_nodes.pop("override_nodes"))
-
-    for item in ayon_imageio_nodes["requiredNodes"]:
-        if "nuke_node_class" in item:
-            item["nukeNodeClass"] = item.pop("nuke_node_class")
-        item["knobs"] = _convert_nuke_knobs(item["knobs"])
-
-    for item in ayon_imageio_nodes["overrideNodes"]:
-        if "nuke_node_class" in item:
-            item["nukeNodeClass"] = item.pop("nuke_node_class")
-        item["knobs"] = _convert_nuke_knobs(item["knobs"])
-
-    output["nuke"] = ayon_nuke
-
-
 def _convert_royalrender_project_settings(ayon_settings, output):
     if "royalrender" not in ayon_settings:
         return
@@ -335,8 +149,6 @@ def convert_project_settings(ayon_settings, default_settings):
     default_settings = copy.deepcopy(default_settings)
     output = {}
 
-    _convert_nuke_project_settings(ayon_settings, output)
-
     _convert_royalrender_project_settings(ayon_settings, output)
 
     for key, value in ayon_settings.items():