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Topic aspects are not updated when merging topics and the model uses a custom vectorizer

bugSomething isn't workingSomething isn't working

Status: Open.

#2531 In MaartenGr/BERTopic;

· aymanmh opened on Aug 12, 2026

Creating topics over time fails if model has deleted topics

bugSomething isn't workingSomething isn't working

Status: Open.

#2530 In MaartenGr/BERTopic;

· aymanmh opened on Aug 12, 2026

Topic deletion fails if topics have custom lables

bugSomething isn't workingSomething isn't working

Status: Open.

#2529 In MaartenGr/BERTopic;

· aymanmh opened on Aug 12, 2026

Creating Topic Taxonomies

Status: Open.

#2526 In MaartenGr/BERTopic;

· TheItCrOw opened on Jul 30, 2026

Add structured multi aspect output to the LangChain representation 2:06 AM

Status: Open.

#2523 In MaartenGr/BERTopic;

· ada-zl125 opened on Jul 26, 2026

Add top-down (divisive) strategy for hierarchical_topics()

Status: Open.

#2508 In MaartenGr/BERTopic;

· pidefrem opened on Jul 8, 2026

Support pre-tokenized documents to avoid redundant tokenization across pipeline stages

Status: Open.

#2507 In MaartenGr/BERTopic;

· pidefrem opened on Jul 8, 2026

Add contrastive and embedding-aware feature importance as representation aspects

Status: Open.

#2506 In MaartenGr/BERTopic;

· pidefrem opened on Jul 8, 2026

Lightweight soft topic assignment via temperature-scaled embedding distances

Status: Open.

#2505 In MaartenGr/BERTopic;

· pidefrem opened on Jul 8, 2026

Support reusing pre-computed UMAP embeddings across runs (grid search, caching)

Status: Open.

#2504 In MaartenGr/BERTopic;

· pidefrem opened on Jul 8, 2026

hierarchical_topics() parent nodes show raw c-TF-IDF keywords instead of representation model labels

Status: Open.

#2503 In MaartenGr/BERTopic;

· pidefrem opened on Jul 8, 2026

approximate_distribution: add target-based min_similarity ("at most N unassigned documents")

Status: Open.

#2502 In MaartenGr/BERTopic;

· pidefrem opened on Jul 8, 2026