fix: buffer reuse and back to pool and release v2.16.2

[jeevatkm]

fixes #917

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.68%. Comparing base (d598157) to head (43d5eca).
Report is 3 commits behind head on v2.

Additional details and impacted files

@@            Coverage Diff             @@
##               v2     #919      +/-   ##
==========================================
- Coverage   95.70%   95.68%   -0.02%     
==========================================
  Files          14       14              
  Lines        2211     2203       -8     
==========================================
- Hits         2116     2108       -8     
  Misses         71       71              
  Partials       24       24              

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