v1.6.1 - CRITICAL FIX (Linux)

1.6.1 (2026-02-27)

• CRITICAL Linux!
  The 1.6.0 build failed for Linux and wheels were not uploaded!

1.6.0 (2026-02-27)

• CRITICAL!
  Fix shared reference data loss in pickle memo for mutable containers:
  BINPUT stored empty snapshot before SETITEMS/APPENDS populated the
  container, causing BINGET to return stale empty values [#18]
• Optimize memo sync with lazy dirty flags: mark memo entries as stale
  after mutations, resolve only on BINGET read or stack pop (eliminates
  unnecessary clones for memo entries never re-read)
• Clean up dead code and compiler warnings: gate test-only functions with
  #[cfg(test)], prefix unused variables, convert doc comments on macros
  to regular comments

Full Changelog: v1.6.0...v1.6.1