Oct 31, 2026 – Nov 6, 2026

Improve distributed dataloader handlingPython · 112 + / 27 −

Introduces 4 new declarations in nemo/collections/common/data/lhotse/broadcasting.py.

Adds new core implementation rather than adjusting what was there. Tests changed with it, with code of their own.

nemo/collections/common/data/lhotse/broadcasting.py ↗ · 3 files

@@ -231,5 +254,67 @@ def _resolve_group_and_source(device_mesh, axes: Sequence[str]):      group = sub.get_group()     source_global_rank = int(sub.mesh.flatten()[0].item())-    _GROUP_CACHE[cache_key] = (group, source_global_rank)     return group, source_global_rank+++def _broadcast_packet(packet, group, src: int):+    """Broadcast one pre-serialized protocol packet over ``group``.++    Serializing before the first tensor collective lets the source replace an+    unpicklable data packet with a small error packet while receivers are still+    waiting for the packet size. Failures after a collective begins must be+    handled by the process-group timeout and distributed job teardown.+    """+    is_source = dist.get_rank() == src+    source_error = None+    if is_source:+        try:+            serialized = pickle.dumps(packet, protocol=pickle.HIGHEST_PROTOCOL)+        except Exception as error:+            source_error = error+            packet = _error_packet(error, "batch serialization failed")+            serialized = pickle.dumps(packet, protocol=pickle.HIGHEST_PROTOCOL)+    else:+        serialized = b""++    device = _broadcast_device(group)+    serialized_size = torch.tensor([len(serialized)], dtype=torch.long, device=device)+    dist.broadcast(serialized_size, src=src, group=group)++    if is_source:+        serialized_buffer = bytearray(serialized)

Keep overrides of the deprecated gradient checkpointing methods workingPython · 36 + / 2 −

Introduces 3 new declarations in src/transformers/modeling_utils.py.

Adds new core implementation rather than adjusting what was there. Tests changed with it, with code of their own.

src/transformers/modeling_utils.py ↗ · 2 files

@@ -3129,6 +3129,19 @@ def activation_checkpointing_enable(             activation_checkpointing_kwargs (dict, *optional*):                 Additional keyword arguments passed along to the `torch.utils.checkpoint.checkpoint` function.         """+        # Subclasses and wrappers of the deprecated `gradient_checkpointing_enable` stay the entry point until v6+        if self._is_overridden("gradient_checkpointing_enable"):+            self.gradient_checkpointing_enable(+                gradient_checkpointing_kwargs=activation_checkpointing_kwargs,+                every_n_layers=every_n_layers,+                offload=offload,+            )+        else:+            self._activation_checkpointing_enable(activation_checkpointing_kwargs, every_n_layers, offload)++    def _activation_checkpointing_enable(+        self, activation_checkpointing_kwargs=None, every_n_layers: int = 1, offload: bool = False+    ):         if not self.supports_gradient_checkpointing:             raise ValueError(f"{self.__class__.__name__} does not support activation checkpointing.") 

BUG: f2py: mask string literals in depend harvest and fix sort orderPython · 100 + / 17 −

Introduces 3 new declarations in numpy/f2py/crackfortran.py.

Adds new core implementation rather than adjusting what was there. Tests changed with it, with code of their own.

numpy/f2py/crackfortran.py ↗ · 8 files

@@ -2129,6 +2147,49 @@ def postcrack(block, args=None, tab=''):     return block  +def _sort_cyclic_dependents(dep, vars):+    """Order one cyclic depend group by real dependency edges.++    ``sortvarnames`` calls this only after a cycle has been reported.+    The usual f2py cycle is an input array dimensioned by hide scalars+    that are computed from that array (``n = shape(a, ...)``,+    ``lda = MAX(1, n)``). Those array-to-hide edges are dropped so+    ``getarrdims`` can blank them, and every remaining edge is honored+    by a topological sort. An initializer therefore runs after the+    names it uses, independent of declaration order.++    A cycle that is not one of those shape back-edges is left in+    ``dep`` order. The caller has already reported it. This function+    does not recurse.+    """+    remaining = set(dep)++    def blocking(name):+        var = vars[name]+        blocked_by = []+        for dep_name in var.get('depend') or []:+            if dep_name not in remaining or dep_name == name:+                continue+            target = vars.get(dep_name, {})+            # Dimension back-edge onto a hide value or an initializer.+            if (isarray(var) and isintent_nothide(var)+                    and (isintent_hide(target) or '=' in target)):+                continue+            blocked_by.append(dep_name)+        return blocked_by

Implement `advance_back_by` on `Fuse`Rust · 41 + / 0 −

Introduces 4 new declarations in library/core/src/iter/adapters/fuse.rs.

Adds new language design rather than adjusting what was there. Tests changed with it, with code of their own.

library/core/src/iter/adapters/fuse.rs ↗ · 2 files

@@ -358,6 +366,25 @@ where         and_then_or_clear(&mut self.iter, |iter| iter.next_back())     } +    #[inline]+    default fn advance_back_by(&mut self, n: usize) -> Result<(), NonZero<usize>>+    where+        I: DoubleEndedIterator,+    {+        let Some(iter) = &mut self.iter else {+            return match NonZero::new(n) {+                Some(n) => Err(n),+                None => Ok(()),+            };+        };++        let res = iter.advance_back_by(n);+        if res.is_err() {+            self.iter = None;+        }+        res+    }+     #[inline]     default fn nth_back(&mut self, n: usize) -> Option<<I as Iterator>::Item>     where

Add support for the xing4_0 C++ · 884 + / 1 −

Introduces 3 new declarations in src/models/xing4-0.cpp.

Adds new runtime rather than adjusting what was there. Tests changed with it, with code of their own.

src/models/xing4-0.cpp ↗ · 13 files

@@ -0,0 +1,828 @@+#include "models.h"++#include <cmath>+#include <stdexcept>+#include <string>++static size_t xing4_0_elem_offset(const ggml_tensor * t, int64_t i) {+    return ggml_row_size(t->type, i);+}++static ggml_tensor * xing4_0_view_1d(ggml_context * ctx, ggml_tensor * t, int64_t ne0, int64_t i0) {+    return ggml_view_1d(ctx, t, ne0, xing4_0_elem_offset(t, i0));+}++static ggml_tensor * xing4_0_view_2d(+        ggml_context * ctx,+        ggml_tensor  * t,+        int64_t        ne0,+        int64_t        ne1,+        int64_t        i0) {+    return ggml_view_2d(ctx, t, ne0, ne1, t->nb[1], xing4_0_elem_offset(t, i0));+}++// mean over the hyper-connection streams: [n_embd, hc, n_tokens] -> [n_embd, n_tokens]+static ggml_tensor * xing4_0_hc_mean(ggml_context * ctx, ggml_tensor * x) {+    const int64_t hc = x->ne[1];++    ggml_tensor * acc = ggml_view_2d(ctx, x, x->ne[0], x->ne[2], x->nb[2], 0);+    for (int64_t s = 1; s < hc; ++s) {+        acc = ggml_add(ctx, acc, ggml_view_2d(ctx, x, x->ne[0], x->ne[2], x->nb[2], s*x->nb[1]));+    }+    return ggml_scale(ctx, acc, 1.0f/hc);+}

fix: Protect math from markdown emphasis parsing in Markdown panePython · 58 + / 3 −

Introduces 10 new declarations in panel/pane/markup.py.

Adds new core implementation rather than adjusting what was there. Tests changed with it, with code of their own.

panel/pane/markup.py ↗ · 3 files

@@ -38,6 +38,54 @@ # links, definition lists) or which breaks line offsets (\r). _NON_LOCAL_SYNTAX = re.compile(r'\[\^|\]:|^ {0,3}[:~][ \t]|\r', re.MULTILINE) +def _math_plugin(md: MarkdownIt) -> None:+    """+    Keeps math delimited by $$ verbatim, since the client-side+    MathJax pass runs on the rendered HTML and would otherwise see+    markup generated from characters such as '*' inside the math.+    """+    from mdit_py_plugins.dollarmath import dollarmath_plugin+    from mdit_py_plugins.dollarmath.index import math_inline_dollar++    dollarmath_plugin(md, allow_labels=False, double_inline=True)++    # The client only typesets $$, so single $ must stay ordinary text+    # (e.g. currency) and keep its surrounding emphasis.+    inline_rule = math_inline_dollar(True, True, True)++    def double_only(state, silent):+        if state.src[state.pos:state.pos + 2] != '$$':+            return False+        return inline_rule(state, silent)++    md.inline.ruler.at('math_inline', double_only)++    def raw(delimiter, block=False):+        def render(self, tokens, idx, options, env):+            math = escape(tokens[idx].content, quote=False)+            return f'{delimiter}{math}{delimiter}\n' if block else f'{delimiter}{math}{delimiter}'+        return render++    md.add_render_rule('math_inline_double', raw('$$'))+    md.add_render_rule('math_block', raw('$$', block=True))

[`Moe`] Fix grouped mm fallbackPython · 36 + / 4 −

Introduces 3 new declarations in src/transformers/integrations/moe.py.

Adds new core implementation rather than adjusting what was there. Tests changed with it, with code of their own.

src/transformers/integrations/moe.py ↗ · 2 files

@@ -233,22 +233,43 @@ def _grouped_mm_fallback_setup_context(ctx, inputs, output):     ctx.offs = inputs[2]  -def _grouped_mm_fallback_backward(ctx, grad_output):-    """Backward pass for `_grouped_mm_fallback`. Computes grad_input and grad_weight per expert group; offs has no gradient."""-    input, weight = ctx.saved_tensors+def _grouped_mm_fallback_bwd(+    input: torch.Tensor,+    weight: torch.Tensor,+    offs: torch.Tensor,+    grad_output: torch.Tensor,+) -> tuple[torch.Tensor, torch.Tensor]:+    """Backward implementation for the grouped matmul fallback."""     grad_input = torch.zeros_like(input)     grad_weight = torch.zeros_like(weight)      start = 0     # single cpu<->gpu sync point here,     # avoids multiple syncs inside the loop-    for i, end in enumerate(ctx.offs.tolist()):+    for i, end in enumerate(offs.tolist()):         if start == end:             continue         torch.mm(grad_output[start:end], weight[i].T, out=grad_input[start:end])         torch.mm(input[start:end].T, grad_output[start:end], out=grad_weight[i])         start = end +    return grad_input, grad_weight+++def _grouped_mm_fallback_backward_fake(+    input: torch.Tensor,+    weight: torch.Tensor,

InterPodAffinity: handle namespaceSelector in assigned-pod queueing hintsGo · 120 + / 23 −

Introduces 4 new declarations in pkg/scheduler/framework/plugins/interpodaffinity/plugin.go.

Adds new systems design rather than adjusting what was there. Tests changed with it, with code of their own.

pkg/scheduler/framework/plugins/interpodaffinity/plugin.go ↗ · 3 files

@@ -162,6 +163,47 @@ func GetNamespaceLabelsSnapshot(logger klog.Logger, ns string, nsLister listersv 	return } +// termsNeedNamespaceLabels reports whether matching any of the terms against+// any of the pods requires the pods' namespace labels. A term that already+// matches the pod namespace via Namespaces, or whose namespace selector is+// empty/nothing, can be evaluated without looking the namespace up.+func termsNeedNamespaceLabels(terms []fwk.AffinityTerm, pods ...*v1.Pod) bool {+	for i := range terms {+		term := &terms[i]+		if term.NamespaceSelector == nil ||+			labels.MatchesNothing(term.NamespaceSelector) ||+			term.NamespaceSelector.Empty() {+			continue+		}+		for _, pod := range pods {+			if pod == nil || term.Namespaces.Has(pod.Namespace) {+				continue+			}+			if term.Selector.Matches(labels.Set(pod.Labels)) {+				return true+			}+		}+	}+	return false+}++// namespaceLabelsForNamespace returns namespace labels, whether the namespace+// was found, and an error. A missing namespace is reported as found=false with+// no error; other lister errors are returned to the caller.+func (pl *InterPodAffinity) namespaceLabelsForNamespace(namespace string, needed bool) (labels.Set, bool, error) {+	if !needed {+		return nil, true, nil

client-go/rest/watch: add concurrent watch event decoderGo · 225 + / 1 −

Introduces 14 new declarations in staging/src/k8s.io/client-go/rest/watch/concurrent_decoder.go.

Adds new systems design rather than adjusting what was there. Tests changed with it, with code of their own.

staging/src/k8s.io/client-go/rest/watch/concurrent_decoder.go ↗ · 6 files

@@ -0,0 +1,208 @@+/*+Copyright The Kubernetes Authors.++Licensed under the Apache License, Version 2.0 (the "License");+you may not use this file except in compliance with the License.+You may obtain a copy of the License at++    http://www.apache.org/licenses/LICENSE-2.0++Unless required by applicable law or agreed to in writing, software+distributed under the License is distributed on an "AS IS" BASIS,+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.+See the License for the specific language governing permissions and+limitations under the License.+*/++package watch++import (+	"fmt"+	"io"+	"sync"++	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"+	"k8s.io/apimachinery/pkg/runtime"+	"k8s.io/apimachinery/pkg/runtime/serializer/streaming"+	utilruntime "k8s.io/apimachinery/pkg/util/runtime"+	"k8s.io/apimachinery/pkg/watch"+)++type rawWatchEventResult struct {+	event *metav1.WatchEvent+	err   error

Refactor box downcasting methodsRust · 52 + / 43 −

Introduces 6 new declarations in library/alloc/src/boxed/convert.rs.

Adds new language design rather than adjusting what was there. Tests changed with it, with code of their own.

library/alloc/src/boxed/convert.rs ↗ · 6 files

@@ -711,21 +717,24 @@ impl<'a, 'b> From<Cow<'b, str>> for Box<dyn Error + 'a> {     } } +impl<T: Error + ?Sized + 'static, A: Allocator> Box<T, A> {+    fn downcast_error<Dst: 'static>(this: Self) -> Result<Box<Dst, A>, Self> {+        if core::error::error_type_id::<T>(&this) == core::any::TypeId::of::<Dst>() {+            // SAFETY: The type is correct+            Ok(unsafe { Self::cast_unchecked(this) })+        } else {+            Err(this)+        }+    }+}+ impl dyn Error {     /// Attempts to downcast the box to a concrete type.     #[inline]     #[stable(feature = "error_downcast", since = "1.3.0")]     #[rustc_allow_incoherent_impl]     pub fn downcast<T: Error + 'static>(self: Box<Self>) -> Result<Box<T>, Box<dyn Error>> {-        if self.is::<T>() {-            // SAFETY: Check ensures the type is correct.-            unsafe {-                let raw: *mut dyn Error = Box::into_raw(self);-                Ok(Box::from_raw(raw as *mut T))-            }-        } else {-            Err(self)-        }+        Box::downcast_error(self)     } } 

Improve Request Insights context menus and trace interactionsTypeScript · 356 + / 80 −

Introduces 8 new declarations in packages/next/src/next-devtools/dev-overlay/components/request-insights/request-insights-panel.tsx.

Adds new framework internals rather than adjusting what was there. Tests changed with it, with code of their own.

packages/next/src/next-devtools/dev-overlay/components/request-insights/request-insights-panel.tsx ↗ · 5 files

@@ -696,53 +743,165 @@ function RequestRow({     requestType.type === 'rsc'   )   const clockTime = formatClockTime(request.startTime)-  const bypassesProxy = request.proxyStatus === 'bypassed'    return (-    <button-      aria-label={`${isInstantInsights ? `Instant Insights for ${requestUrl}` : requestUrl}, ${requestType.accessibleLabel}, ${bypassesProxy ? 'Did not match the configured proxy, ' : ''}${formatDuration(request.durationMs)}, ${clockTime}`}-      className="request-insights-row"-      data-internal={isInstantInsights || undefined}-      data-nested={nested || undefined}-      data-page-load={pageLoad}-      data-selected={selected}-      onClick={onSelect}-      type="button"+    <ContextMenu.Root+      onOpenChange={onContextMenuOpenChange}+      open={contextMenuOpen}     >-      <span className="request-insights-status" data-status={request.status} />-      <span className="request-insights-route">-        {nested ? <NestedArrowIcon /> : null}-        <span className="request-insights-route-label">-          {isInstantInsights ? 'Instant Insights' : requestUrl}-        </span>-      </span>-      <span className="request-insights-duration">-        {formatDuration(request.durationMs)}-      </span>-      <span className="request-insights-meta request-insights-row-metadata">+      <ContextMenu.Trigger+        render={+          <button

feat(next/image): add internal image redirects (to match existing external image redirects)TypeScript · 131 + / 72 −

Introduces 3 new declarations in packages/next/src/server/image-optimizer.ts.

Adds new framework internals rather than adjusting what was there. Tests changed with it, with code of their own.

packages/next/src/server/image-optimizer.ts ↗ · 10 files

@@ -100,6 +100,77 @@ export interface ImageParamsResult {   minimumCacheTTL: number } +type ImageUrlParamResult =+  | { href: string; isAbsolute: boolean }+  | { errorMessage: string }++function validateUrlParam(+  url: string | string[] | undefined,+  imageData: ImageConfigComplete,+  isRedirect = false+): ImageUrlParamResult {+  // Note - We intentionally skip validation for local/remotePatterns when+  // validating redirect locations so that we don't break a src img redirect+  // to a new domain (e.g. github.com => githubusercontent.com).+  const { domains = [], remotePatterns = [], localPatterns } = imageData++  if (!isRedirect && domains.length > 0) {+    Log.warnOnce(+      'The "images.domains" configuration is deprecated. Please use "images.remotePatterns" configuration instead.'+    )+  }++  if (!url) {+    return { errorMessage: '"url" parameter is required' }+  } else if (Array.isArray(url)) {+    return { errorMessage: '"url" parameter cannot be an array' }+  }++  if (url.length > 3072) {+    return { errorMessage: '"url" parameter is too long' }+  }+