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thread_index

0.1.0
0.1.0

Encode and decode the Outlook Thread-Index header (MAPI PidTagConversationIndex) — both desktop Outlook and Exchange/OWA/Graph variants, with correct reply-date recovery.

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CHANGELOG.md 

# Changelog



## v0.1.0 (2026-06-11)



Initial release.



* Decode both conversation index header variants: classic (desktop Outlook,

  `FILETIME >> 16` in bytes 0-5) and modern (Exchange 2013+/Exchange

  Online/OWA/Graph, `0x01` + `FILETIME >> 24` in bytes 1-5).

* Recover true reply dates from child blocks, including Exchange-generated

  blocks whose 31-bit deltas wrap mod 2^31 against the classic misread of

  modern headers.

* Encode root indexes (both formats) and reply child blocks byte-compatible

  with Microsoft's own encoders.

* Self-contained Python reference implementation in `examples/thread_index.py`.