Issues

• Document HF TEI Sparse Embedders + GRPC support

  handled internally
  Docs

  deepset-ai/haystack#13067 · Filter by author anakin87 opened on Oct 1, 2026

• Drop Python 3.10 support and add Python 3.15

  P2
  deepset-ai/haystack#13065 · Filter by author julian-risch opened on Oct 1, 2026 · 3.5.0
  

• OpenAIResponsesChatGenerator: streamed reasoning text (chunk.item.content[].text) is dropped

  deepset-ai/haystack#13061 · Filter by author tstadel opened on Oct 1, 2026
  

• LLMRanker fallback paths ignore top_k and return all input documents

  deepset-ai/haystack#13045 · Filter by author Harsh23Kashyap opened on Sep 30, 2026
  

• PPTXToDocument drops soft line breaks when link_format is markdown or plain

  P3
  Bug

  deepset-ai/haystack#13043 · Filter by author Harsh23Kashyap opened on Sep 30, 2026
  1

• XLSXToDocument assigns hyperlinks to the wrong cells with skiprows or usecols

  P2
  Bug

  deepset-ai/haystack#13041 · Filter by author Harsh23Kashyap opened on Sep 30, 2026
  

• InMemoryDocumentStore: count_unique_metadata_by_filter and get_metadata_field_unique_values disagree on int/float/bool values

  P3
  Bug

  deepset-ai/haystack#13040 · Filter by author Harsh23Kashyap opened on Sep 30, 2026

• JsonSchemaValidator rejects valid arrays and skips constraints on empty arrays

  P3
  Bug

  deepset-ai/haystack#13032 · Filter by author Harsh23Kashyap opened on Sep 30, 2026
  4

• AutoMergingRetriever raises ValueError when a matched document has no parent (for example the root document)

  deepset-ai/haystack#13029 · Filter by author Harsh23Kashyap opened on Sep 30, 2026
  2

  

• CSVToDocument row mode fails on CR-separated CSV input

  P3
  Bug

  deepset-ai/haystack#13022 · Filter by author Marcuswang0824 opened on Sep 29, 2026
  

• LinkContentFetcher does not save the encoding in the ByteStream result

  handled internallyP1
  Bug

  deepset-ai/haystack#13018 · Filter by author anakin87 opened on Sep 29, 2026

• CSVToDocument row mode drops a real extra_columns field on ragged rows

  handled internallyP3
  deepset-ai/haystack#12994 · Filter by author Harsh23Kashyap opened on Sep 28, 2026
  1

• Support schema-constrained structured outputs with automatic recovery in Agent

  deepset-ai/haystack#12989 · Filter by author rautaditya2606 opened on Sep 27, 2026
  

• SentenceWindowRetriever returns context_windows in Document Store order when chunks have no split_idx_start

  deepset-ai/haystack#12975 · Filter by author LindseyZ1205 opened on Sep 26, 2026
  

• Make the tiktoken encoding configurable in RecursiveDocumentSplitter

  Feature

  deepset-ai/haystack#12973 · Filter by author shivsin25 opened on Sep 26, 2026
  

• Add TTL / expiration support to CacheChecker

  P3
  Feature

  deepset-ai/haystack#12967 · Filter by author Mariam-Amin12 opened on Sep 25, 2026
  1

  

• CSVDocumentSplitter crashes when read_csv_kwargs sets header=0

  P3
  deepset-ai/haystack#12965 · Filter by author Harsh23Kashyap opened on Sep 25, 2026
  

• MarkdownHeaderSplitter treats headings inside longer closing fences as headers

  deepset-ai/haystack#12954 · Filter by author Harsh23Kashyap opened on Sep 25, 2026
  2

  

• XLSXToDocument drops literal NA and N/A cell values

  P3
  Bug

  deepset-ai/haystack#12945 · Filter by author Harsh23Kashyap opened on Sep 25, 2026
  

• AutoMergingRetriever fails to merge or duplicates roots for leaves at different depths

  deepset-ai/haystack#12943 · Filter by author Ytq1115 opened on Sep 25, 2026
  

• Sockets.__getattribute__ references _sockets but the actual attribute is _sockets_dict — the optimization at lines 127-132 is dead code due to a typo

  P2
  Bug

  deepset-ai/haystack#12939 · Filter by author Harsh23Kashyap opened on Sep 24, 2026
  1

  

• Support split_by="token" in HierarchicalDocumentSplitter

  Feature

  deepset-ai/haystack#12917 · Filter by author shivsin25 opened on Sep 24, 2026
  

• LinkContentFetcher._resolve_handler docstring lies: claims 'default handler for text/plain' but text/plain is not in handlers; fallback relies on undocumented defaultdict default

  deepset-ai/haystack#12893 · Filter by author Harsh23Kashyap opened on Sep 23, 2026
  

• TiktokenCounter raises ValueError on literal special-token strings like <|endoftext|>

  Contributions wanted!good first issueP2
  Bug

  deepset-ai/haystack#12869 · Filter by author bogdankostic opened on Sep 23, 2026
  2

  

• Log values inside lists and dicts skip the size bound from #12849

  P2
  Bug

  deepset-ai/haystack#12864 · Filter by author Harsh23Kashyap opened on Sep 23, 2026
  6