0.6.1 - 2026-06-12

Other

• Security hardening: fix decompression bombs, OOB panic, and overflow in decoders (#88)
• Add HTTP/2 HPACK (RFC 7541) and LHA -lh2- codecs (#89)
• replace two decoder-path unwrap/expect with error returns (#86)

Added

• HTTP/2 HPACK header compression (RFC 7541) behind the new hpack
  feature. compcol::hpack::{HpackEncoder, HpackDecoder} implement the full
  header codec — static + dynamic indexing tables, N-bit-prefix integers,
  string literals, and all field representations (indexed, literal
  with/without indexing, never-indexed, dynamic-table size update). Validated
  byte-for-byte against the RFC 7541 Appendix C worked examples. The §5.2
  string Huffman primitive is also exposed as the Http2Huffman codec
  (name h2-huffman) through the uniform Encoder/Decoder traits.
• LHA -lh2- added to the lha feature: 8 KiB-window LZSS with adaptive
  (dynamic) Huffman for both literals/lengths and match positions. Like lh1
  it is continuous and size-terminated, so its decoder takes the uncompressed
  length via DecoderConfig::with_len. Clean-room, round-trip validated.