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TQDMProgressBar calls tqdm.refresh instead of tqdm.update.

bugSomething isn't workingSomething isn't working

progress bar: tqdm

ver: 2.5.x

Status: Open.

#21320 In Lightning-AI/pytorch-lightning;

· cf-natali opened on Oct 27, 2025

Change WandbLogger prefix separator to slash for better metric grouping

featureIs an improvement or enhancementIs an improvement or enhancement

logger: wandbWeights & BiasesWeights & Biases

Status: Open.

#21319 In Lightning-AI/pytorch-lightning;

· thozimm opened on Oct 27, 2025

Training loss will increase drastically when resume from ckpts after adopting self-defined sampler in multi-GPU experiments [Fabric]

accelerator: cudaCompute Unified Device Architecture GPUCompute Unified Device Architecture GPU

bugSomething isn't workingSomething isn't working

checkpointingRelated to checkpointingRelated to checkpointing

fabriclightning.fabric.Fabriclightning.fabric.Fabric

ver: 2.3.x

Status: Open.

#21312 In Lightning-AI/pytorch-lightning;

· Moondok opened on Oct 24, 2025

Deprecate Python 3.9 support + Add Python 3.14

ciContinuous IntegrationContinuous Integration

refactor

Status: Open.

#21304 In Lightning-AI/pytorch-lightning;

· SkafteNicki opened on Oct 20, 2025

LR is not updated when <code>on_train_batch_start</code> returns -1

bugSomething isn't workingSomething isn't working

lr scheduler

ver: 2.5.x

Status: Open.

#21296 In Lightning-AI/pytorch-lightning;

· LTMeyer opened on Oct 17, 2025

No way to silence the <code>litmodels</code> advertisement

loggingRelated to the `LoggerConnector` and `log()`Related to the `LoggerConnector` and `log()`

ver: 2.5.x

Status: Open.

#21294 In Lightning-AI/pytorch-lightning;

· ruro opened on Oct 16, 2025

Update from Torchscript to <code>torch.export</code>

refactor

Status: Open.

#21293 In Lightning-AI/pytorch-lightning;

· SkafteNicki opened on Oct 16, 2025

overfit_batches replaces custom sampler with Sequential sampler

bugSomething isn't workingSomething isn't working

data handlingGeneric data-related topicGeneric data-related topic

ver: 2.5.x

Status: Open.

#21282 In Lightning-AI/pytorch-lightning;

· nilsleh opened on Oct 12, 2025

LightingModel.save_checkpoint()

checkpointingRelated to checkpointingRelated to checkpointing

featureIs an improvement or enhancementIs an improvement or enhancement

Status: Open.

#21280 In Lightning-AI/pytorch-lightning;

· Karesto opened on Oct 10, 2025

TQDMProgressBar bug (?) causes DDP to hang

progress bar: tqdm

questionFurther information is requestedFurther information is requested

strategy: ddpDistributedDataParallelDistributedDataParallel

Status: Open.

#21264 In Lightning-AI/pytorch-lightning;

· tchittesh opened on Oct 4, 2025

<code>torch.set_float32_matmul_precision</code> deprecation

refactor

Status: Open.

#21256 In Lightning-AI/pytorch-lightning;

· cw-tan opened on Sep 29, 2025

Allow weight reuse in a different lightning module

Status: Open.

#21255 In Lightning-AI/pytorch-lightning;

· ziw-liu opened on Sep 29, 2025