Issues

• TomlGenerator: invalid TOML output for root-level values, dangling names, date/times without seconds

  TOML
  FasterXML/jackson-dataformats-text#758 · Filter by author cowtowncoder opened on Oct 10, 2026

• YAMLSchema.CORE decodes YAML 1.2 base-10 integers with leading zeros as legacy octals

  FasterXML/jackson-dataformats-text#754 · Filter by author zahash opened on Oct 8, 2026
  1

• Released milestones are all still Open

  FasterXML/jackson-dataformats-text#741 · Filter by author OrangeDog opened on Sep 22, 2026
  1

• [GLD Serializer Benchmark] Java jackson-yaml unknown — spec compliance misses

  FasterXML/jackson-dataformats-text#733 · Filter by author leo-gan opened on Sep 14, 2026

• Jackson 3 parses YAML ~ as StringNode instead of NullNode

  yaml
  FasterXML/jackson-dataformats-text#661 · Filter by author neottil opened on Apr 27, 2026
  6

• yaml: support buffer recycling that doesn't need ThreadLocal

  yaml
  FasterXML/jackson-dataformats-text#612 · Filter by author pjfanning opened on Feb 16, 2026
  1

• JsonParseException when YAML mapping key is a sequence

  yaml
  FasterXML/jackson-dataformats-text#589 · Filter by author af851574-oss opened on Nov 17, 2025
  1

• Support for new format: StructureFieldValues (RFC 9651)

  FasterXML/jackson-dataformats-text#588 · Filter by author tan5o opened on Nov 13, 2025
  1

• CSV generator does not support Object values for properties (nested Objects)

  csv
  FasterXML/jackson-dataformats-text#556 · Filter by author KevinDougan opened on Apr 8, 2025
  3

• in yaml, a ~ key should allow to assing a value to the parent key

  yaml
  FasterXML/jackson-dataformats-text#506 · Filter by author rmanibus opened on Nov 5, 2024
  39

• FeatureRequest: Add PRESERVE_COMMENTS feature for SnakeYAML > 2.0

  yaml
  FasterXML/jackson-dataformats-text#491 · Filter by author bmarwell opened on Aug 20, 2024
  4

• Getters needed for ignored properties

  csvhas-failing-test
  FasterXML/jackson-dataformats-text#476 · Filter by author maroony opened on May 14, 2024
  13

• Add support for "name:type" style Headers

  csv
  FasterXML/jackson-dataformats-text#474 · Filter by author cowtowncoder opened on May 8, 2024

• Python Support

  FasterXML/jackson-dataformats-text#467 · Filter by author appt2 opened on Mar 15, 2024
  2

• Pkl support

  FasterXML/jackson-dataformats-text#464 · Filter by author leonardwoo opened on Feb 27, 2024
  3

• INI Support

  FasterXML/jackson-dataformats-text#451 · Filter by author tisonkun opened on Jan 4, 2024
  4

• Yaml keys starting with number are being double quoted when mapper.writeValue()

  yaml
  FasterXML/jackson-dataformats-text#447 · Filter by author champi52 opened on Dec 7, 2023
  1

• Parse YAML Keys with dots as dereferenced Map

  yaml
  FasterXML/jackson-dataformats-text#431 · Filter by author theAkito opened on Sep 13, 2023
  6

• Parse properties to Map<String, Object>

  Properties
  FasterXML/jackson-dataformats-text#376 · Filter by author CarltonX opened on Jan 31, 2023
  1

• Questionable parsing/serialising of YAML ordered maps

  yaml
  FasterXML/jackson-dataformats-text#340 · Filter by author dpetroff opened on Sep 20, 2022
  5

• Security feature: Add feature to sanitize strings against CSV injection (aka Formula Injection).

  csv
  FasterXML/jackson-dataformats-text#326 · Filter by author Adil-Iqbal opened on Aug 7, 2022
  4

• Cannot deserialize YAML sets

  yaml
  FasterXML/jackson-dataformats-text#317 · Filter by author FichteFoll opened on Jun 29, 2022

• Async (non-blocking) support for CSV

  csv
  FasterXML/jackson-dataformats-text#287 · Filter by author robinroos opened on Sep 16, 2021
  8

• Support parsing CSV with header regardless of unknown columns

  csv
  FasterXML/jackson-dataformats-text#286 · Filter by author bjmi opened on Aug 26, 2021
  4

• More configurable TOML serialization

  TOML
  FasterXML/jackson-dataformats-text#254 · Filter by author yawkat opened on Apr 9, 2021
  11